sp_BlitzIndex.sql

SET ANSI_NULLS ON;
SET ANSI_PADDING ON;
SET ANSI_WARNINGS ON;
SET ARITHABORT ON;
SET CONCAT_NULL_YIELDS_NULL ON;
SET QUOTED_IDENTIFIER ON;
SET STATISTICS IO OFF;
SET STATISTICS TIME OFF;
GO

IF OBJECT_ID('dbo.sp_BlitzIndex') IS NULL
  EXEC ('CREATE PROCEDURE dbo.sp_BlitzIndex AS RETURN 0;')
GO

ALTER PROCEDURE dbo.sp_BlitzIndex
    @DatabaseName NVARCHAR(128) = null, /*Defaults to current DB if not specified*/
    @SchemaName NVARCHAR(128) = NULL, /*Requires table_name as well.*/
    @TableName NVARCHAR(128) = NULL,  /*Requires schema_name as well.*/
    @Mode tinyint=0, /*0=Diagnose, 1=Summarize, 2=Index Usage Detail, 3=Missing Index Detail, 4=Diagnose Details*/
        /*Note:@Mode doesn't matter if you're specifying schema_name and @TableName.*/
    @Filter tinyint = 0, /* 0=no filter (default). 1=No low-usage warnings for objects with 0 reads. 2=Only warn for objects >= 500MB */
        /*Note:@Filter doesn't do anything unless @Mode=0*/
    @GetAllDatabases BIT = 0,
    @BringThePain bit = 0,
    @ThresholdMB INT = 250 /* Number of megabytes that an object must be before we include it in basic results */,
    @OutputServerName NVARCHAR(256) = NULL ,
    @OutputDatabaseName NVARCHAR(256) = NULL ,
    @OutputSchemaName NVARCHAR(256) = NULL ,
    @OutputTableName NVARCHAR(256) = NULL ,
	@Help TINYINT = 0,
	@VersionDate DATETIME = NULL OUTPUT
AS
SET NOCOUNT ON;
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
DECLARE @Version VARCHAR(30);
SET @Version = '4.0';
SET @VersionDate = '20160626';
IF @Help = 1 PRINT '
/*
sp_BlitzIndex from http://FirstResponderKit.org
	
This script analyzes the design and performance of your indexes.

To learn more, visit http://FirstResponderKit.org where you can download new
versions for free, watch training videos on how it works, get more info on
the findings, contribute your own code, and more.

Known limitations of this version:
 - Only Microsoft-supported versions of SQL Server. Sorry, 2005 and 2000.
 - The @OutputDatabaseName parameters are not functional yet. To check the
   status of this enhancement request, visit:
   https://github.com/BrentOzarULTD/SQL-Server-First-Responder-Kit/issues/221
 - Does not analyze columnstore, spatial, XML, or full text indexes. If you
   would like to contribute code to analyze those, head over to Github and
   check out the issues list: http://FirstResponderKit.org
 - Index create statements are just to give you a rough idea of the syntax. It includes filters and fillfactor.
 --        Example 1: index creates use ONLINE=? instead of ONLINE=ON / ONLINE=OFF. This is because it is important 
           for the user to understand if it is going to be offline and not just run a script.
 --        Example 2: they do not include all the options the index may have been created with (padding, compression
           filegroup/partition scheme etc.)
 --        (The compression and filegroup index create syntax is not trivial because it is set at the partition 
           level and is not trivial to code.)
 - Does not advise you about data modeling for clustered indexes and primary keys (primarily looks for signs of insanity.)

Unknown limitations of this version:
 - We knew them once, but we forgot.

Changes in v4.0 - 2016/06/26:
 - BREAKING CHANGE: Standardized input & output parameters to be
   consistent across the entire First Responder Kit. This also means the old
   old output parameter @Version is no more, because we are switching to
   semantic versioning. 	 
   https://github.com/BrentOzarULTD/SQL-Server-First-Responder-Kit/issues/284
- Bug fixes and improvements
	- Erik Darling:
		-Changed index_sanity_id to be NULLable in #IndexPartitionSanity
		-Changed version check to only ever use LEFT JOIN query to get partition information.
		 This was taking upwards of 6 minutes with 15k partitions.

Changes in v3.0 - 2016/03/20:
 - Prioritized results
 - Moved URL to near the end of columns
 - Added 100k/day minimum benefit to high-value missing index recs
 - Expanded avg query cost on missing indexes to 4 decimal places
 - Formatted number of uses on missing indexes to use commas (money format)
 - Changed benefit formula to divide benefit number by uptime
 - When using either @Mode = 0 or @GetAllDatabases = 1, results are limited to:
    *    Duplicate indexes where both are larger than @ThresholdMB
    *    Blocking with a high threshold ( TBD)
    *    Unread indexes larger than @ThresholdMB
    *    Heaps larger than @ThresholdMB with updates or deletes
    *    Identities about to run out of room
    *    The top 20 missing indexes
    *    Abnormal psychology stuff (as an FYI for query / index tuning)
 - Running @GetAllDatabases requires an override parameter (@BringThePain = 1) to run against 50+ databases

MIT License

Copyright (c) 2016 Brent Ozar Unlimited

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
'



DECLARE @DaysUptime NUMERIC(23,2);
DECLARE @DatabaseID INT;
DECLARE @ObjectID INT;
DECLARE @dsql NVARCHAR(MAX);
DECLARE @params NVARCHAR(MAX);
DECLARE @msg NVARCHAR(4000);
DECLARE @ErrorSeverity INT;
DECLARE @ErrorState INT;
DECLARE @Rowcount BIGINT;
DECLARE @SQLServerProductVersion NVARCHAR(128);
DECLARE @SQLServerEdition INT;
DECLARE @FilterMB INT;
DECLARE @collation NVARCHAR(256);
DECLARE @NumDatabases INT;
DECLARE @LineFeed NVARCHAR(5);

SET @LineFeed = CHAR(13) + CHAR(10);
SELECT @SQLServerProductVersion = CAST(SERVERPROPERTY('ProductVersion') AS NVARCHAR(128));
SELECT @SQLServerEdition =CAST(SERVERPROPERTY('EngineEdition') AS INT); /* We default to online index creates where EngineEdition=3*/
SET @FilterMB=250;

RAISERROR(N'Starting run. sp_BlitzIndex(R) v4.0 - June 26, 2016', 0,1) WITH NOWAIT;

IF OBJECT_ID('tempdb..#IndexSanity') IS NOT NULL 
    DROP TABLE #IndexSanity;

IF OBJECT_ID('tempdb..#IndexPartitionSanity') IS NOT NULL 
    DROP TABLE #IndexPartitionSanity;

IF OBJECT_ID('tempdb..#IndexSanitySize') IS NOT NULL 
    DROP TABLE #IndexSanitySize;

IF OBJECT_ID('tempdb..#IndexColumns') IS NOT NULL 
    DROP TABLE #IndexColumns;

IF OBJECT_ID('tempdb..#MissingIndexes') IS NOT NULL 
    DROP TABLE #MissingIndexes;

IF OBJECT_ID('tempdb..#ForeignKeys') IS NOT NULL 
    DROP TABLE #ForeignKeys;

IF OBJECT_ID('tempdb..#BlitzIndexResults') IS NOT NULL 
    DROP TABLE #BlitzIndexResults;
        
IF OBJECT_ID('tempdb..#IndexCreateTsql') IS NOT NULL    
    DROP TABLE #IndexCreateTsql;

IF OBJECT_ID('tempdb..#DatabaseList') IS NOT NULL 
    DROP TABLE #DatabaseList;

        RAISERROR (N'Create temp tables.',0,1) WITH NOWAIT;
        CREATE TABLE #BlitzIndexResults
            (
              blitz_result_id INT IDENTITY PRIMARY KEY,
              check_id INT NOT NULL,
              index_sanity_id INT NULL,
              Priority INT NULL,
              findings_group VARCHAR(4000) NOT NULL,
              finding VARCHAR(200) NOT NULL,
              [database_name] VARCHAR(200) NULL,
              URL VARCHAR(200) NOT NULL,
              details NVARCHAR(4000) NOT NULL,
              index_definition NVARCHAR(MAX) NOT NULL,
              secret_columns NVARCHAR(MAX) NULL,
              index_usage_summary NVARCHAR(MAX) NULL,
              index_size_summary NVARCHAR(MAX) NULL,
              create_tsql NVARCHAR(MAX) NULL,
              more_info NVARCHAR(MAX)NULL
            );

        CREATE TABLE #IndexSanity
            (
              [index_sanity_id] INT IDENTITY PRIMARY KEY,
              [database_id] SMALLINT NOT NULL ,
              [object_id] INT NOT NULL ,
              [index_id] INT NOT NULL ,
              [index_type] TINYINT NOT NULL,
              [database_name] NVARCHAR(128) NOT NULL ,
              [schema_name] NVARCHAR(128) NOT NULL ,
              [object_name] NVARCHAR(128) NOT NULL ,
              index_name NVARCHAR(128) NULL ,
              key_column_names NVARCHAR(MAX) NULL ,
              key_column_names_with_sort_order NVARCHAR(MAX) NULL ,
              key_column_names_with_sort_order_no_types NVARCHAR(MAX) NULL ,
              count_key_columns INT NULL ,
              include_column_names NVARCHAR(MAX) NULL ,
              include_column_names_no_types NVARCHAR(MAX) NULL ,
              count_included_columns INT NULL ,
              partition_key_column_name NVARCHAR(MAX) NULL,
              filter_definition NVARCHAR(MAX) NOT NULL ,
              is_indexed_view BIT NOT NULL ,
              is_unique BIT NOT NULL ,
              is_primary_key BIT NOT NULL ,
              is_XML BIT NOT NULL,
              is_spatial BIT NOT NULL,
              is_NC_columnstore BIT NOT NULL,
              is_CX_columnstore BIT NOT NULL,
              is_disabled BIT NOT NULL ,
              is_hypothetical BIT NOT NULL ,
              is_padded BIT NOT NULL ,
              fill_factor SMALLINT NOT NULL ,
              user_seeks BIGINT NOT NULL ,
              user_scans BIGINT NOT NULL ,
              user_lookups BIGINT NOT  NULL ,
              user_updates BIGINT NULL ,
              last_user_seek DATETIME NULL ,
              last_user_scan DATETIME NULL ,
              last_user_lookup DATETIME NULL ,
              last_user_update DATETIME NULL ,
              is_referenced_by_foreign_key BIT DEFAULT(0),
              secret_columns NVARCHAR(MAX) NULL,
              count_secret_columns INT NULL,
              create_date DATETIME NOT NULL,
              modify_date DATETIME NOT NULL
            );    

        CREATE TABLE #IndexPartitionSanity
            (
              [index_partition_sanity_id] INT IDENTITY PRIMARY KEY ,
              [index_sanity_id] INT NULL ,
              [database_id] INT NOT NULL ,
              [object_id] INT NOT NULL ,
              [index_id] INT NOT NULL ,
              [partition_number] INT NOT NULL ,
              row_count BIGINT NOT NULL ,
              reserved_MB NUMERIC(29,2) NOT NULL ,
              reserved_LOB_MB NUMERIC(29,2) NOT NULL ,
              reserved_row_overflow_MB NUMERIC(29,2) NOT NULL ,
              leaf_insert_count BIGINT NULL ,
              leaf_delete_count BIGINT NULL ,
              leaf_update_count BIGINT NULL ,
              range_scan_count BIGINT NULL ,
              singleton_lookup_count BIGINT NULL , 
              forwarded_fetch_count BIGINT NULL ,
              lob_fetch_in_pages BIGINT NULL ,
              lob_fetch_in_bytes BIGINT NULL ,
              row_overflow_fetch_in_pages BIGINT NULL ,
              row_overflow_fetch_in_bytes BIGINT NULL ,
              row_lock_count BIGINT NULL ,
              row_lock_wait_count BIGINT NULL ,
              row_lock_wait_in_ms BIGINT NULL ,
              page_lock_count BIGINT NULL ,
              page_lock_wait_count BIGINT NULL ,
              page_lock_wait_in_ms BIGINT NULL ,
              index_lock_promotion_attempt_count BIGINT NULL ,
              index_lock_promotion_count BIGINT NULL,
                data_compression_desc VARCHAR(60) NULL
            );

        CREATE TABLE #IndexSanitySize
            (
              [index_sanity_size_id] INT IDENTITY NOT NULL ,
              [index_sanity_id] INT NULL ,
              [database_id] INT NOT NULL,
              partition_count INT NOT NULL ,
              total_rows BIGINT NOT NULL ,
              total_reserved_MB NUMERIC(29,2) NOT NULL ,
              total_reserved_LOB_MB NUMERIC(29,2) NOT NULL ,
              total_reserved_row_overflow_MB NUMERIC(29,2) NOT NULL ,
              total_leaf_delete_count BIGINT NULL,
              total_leaf_update_count BIGINT NULL,
              total_range_scan_count BIGINT NULL,
              total_singleton_lookup_count BIGINT NULL,
              total_forwarded_fetch_count BIGINT NULL,
              total_row_lock_count BIGINT NULL ,
              total_row_lock_wait_count BIGINT NULL ,
              total_row_lock_wait_in_ms BIGINT NULL ,
              avg_row_lock_wait_in_ms BIGINT NULL ,
              total_page_lock_count BIGINT NULL ,
              total_page_lock_wait_count BIGINT NULL ,
              total_page_lock_wait_in_ms BIGINT NULL ,
              avg_page_lock_wait_in_ms BIGINT NULL ,
               total_index_lock_promotion_attempt_count BIGINT NULL ,
              total_index_lock_promotion_count BIGINT NULL ,
              data_compression_desc VARCHAR(8000) NULL
            );

        CREATE TABLE #IndexColumns
            (
              [database_id] INT NOT NULL,
              [object_id] INT NOT NULL ,
              [index_id] INT NOT NULL ,
              [key_ordinal] INT NULL ,
              is_included_column BIT NULL ,
              is_descending_key BIT NULL ,
              [partition_ordinal] INT NULL ,
              column_name NVARCHAR(256) NOT NULL ,
              system_type_name NVARCHAR(256) NOT NULL,
              max_length SMALLINT NOT NULL,
              [precision] TINYINT NOT NULL,
              [scale] TINYINT NOT NULL,
              collation_name NVARCHAR(256) NULL,
              is_nullable bit NULL,
              is_identity bit NULL,
              is_computed bit NULL,
              is_replicated bit NULL,
              is_sparse bit NULL,
              is_filestream bit NULL,
              seed_value BIGINT NULL,
              increment_value INT NULL ,
              last_value BIGINT NULL,
              is_not_for_replication BIT NULL
            );

        CREATE TABLE #MissingIndexes
            ([object_id] INT NOT NULL,
            [database_name] NVARCHAR(128) NOT NULL ,
            [schema_name] NVARCHAR(128) NOT NULL ,
            [table_name] NVARCHAR(128),
            [statement] NVARCHAR(512) NOT NULL,
            magic_benefit_number AS (( user_seeks + user_scans ) * avg_total_user_cost * avg_user_impact),
            avg_total_user_cost NUMERIC(29,4) NOT NULL,
            avg_user_impact NUMERIC(29,1) NOT NULL,
            user_seeks BIGINT NOT NULL,
            user_scans BIGINT NOT NULL,
            unique_compiles BIGINT NULL,
            equality_columns NVARCHAR(4000), 
            inequality_columns NVARCHAR(4000),
            included_columns NVARCHAR(4000)
            );

        CREATE TABLE #ForeignKeys (
            [database_name] NVARCHAR(128) NOT NULL ,
            foreign_key_name NVARCHAR(256),
            parent_object_id INT,
            parent_object_name NVARCHAR(256),
            referenced_object_id INT,
            referenced_object_name NVARCHAR(256),
            is_disabled BIT,
            is_not_trusted BIT,
            is_not_for_replication BIT,
            parent_fk_columns NVARCHAR(MAX),
            referenced_fk_columns NVARCHAR(MAX),
            update_referential_action_desc NVARCHAR(16),
            delete_referential_action_desc NVARCHAR(60)
        )
        
        CREATE TABLE #IndexCreateTsql (
            index_sanity_id INT NOT NULL,
            create_tsql NVARCHAR(MAX) NOT NULL
        )

        CREATE TABLE #DatabaseList (
            DatabaseName NVARCHAR(256)
        )

IF @GetAllDatabases = 1
    BEGIN
        INSERT INTO #DatabaseList (DatabaseName)
        SELECT    DB_NAME(database_id)
        FROM    sys.databases
        WHERE    user_access_desc='MULTI_USER'
            AND state_desc = 'ONLINE'
            AND database_id > 4;
    END
ELSE
    BEGIN
        INSERT INTO #DatabaseList
                ( DatabaseName )
        SELECT CASE WHEN @DatabaseName IS NULL OR @DatabaseName = N'' THEN DB_NAME()
                    ELSE @DatabaseName END
    END

SET @NumDatabases = @@ROWCOUNT;

/* Running on 50+ databases can take a reaaallly long time, so we want explicit permission to do so (and only after warning about it) */

BEGIN TRY
        IF @NumDatabases >= 50 AND @BringThePain != 1
        BEGIN
            SET @msg= N'You''re trying to run sp_BlitzIndex on a server with ' + CAST(@NumDatabases AS NVARCHAR(8)) + N' databases. '
                        + CHAR(13) + N'Running sp_BlitzIndex on a server with 50+ databases may cause temporary insanity for the server and/or user.'
                        + CHAR(13) + N'If you''re sure you want to do this, run again with the parameter @BringThePain = 1.';
            RAISERROR(@msg, 10,1) WITH NOWAIT;
            RETURN;
        END
END TRY
BEGIN CATCH
        RAISERROR (N'Failure to execute due to number of databases.', 0,1) WITH NOWAIT;

        SELECT    @msg = ERROR_MESSAGE(), @ErrorSeverity = ERROR_SEVERITY(), @ErrorState = ERROR_STATE();

        RAISERROR (@msg, 
               @ErrorSeverity, 
               @ErrorState 
               );
        
        WHILE @@trancount > 0 
            ROLLBACK;

        RETURN;
    END CATCH;

/* Permission granted or unnecessary? Ok, let's go! */

DECLARE c1 CURSOR 
LOCAL FAST_FORWARD 
FOR 
SELECT DatabaseName FROM #DatabaseList ORDER BY DatabaseName

OPEN c1
FETCH NEXT FROM c1 INTO @DatabaseName
                WHILE @@FETCH_STATUS = 0
BEGIN
    
    RAISERROR (@LineFeed, 0, 1) WITH NOWAIT;
    RAISERROR (@LineFeed, 0, 1) WITH NOWAIT;
    RAISERROR (@DatabaseName, 0, 1) WITH NOWAIT;

SELECT    @DatabaseID = database_id
FROM    sys.databases
WHERE    [name] = @DatabaseName
    AND user_access_desc='MULTI_USER'
    AND state_desc = 'ONLINE';

/* Last startup */
SELECT @DaysUptime = CAST(DATEDIFF(hh,create_date,getdate())/24. as numeric (23,2))
FROM    sys.databases
WHERE   database_id = 2;

IF @DaysUptime = 0 SET @DaysUptime = .01;

----------------------------------------
--STEP 1: OBSERVE THE PATIENT
--This step puts index information into temp tables.
----------------------------------------
BEGIN TRY
    BEGIN

        --Validate SQL Server Verson

        IF (SELECT LEFT(@SQLServerProductVersion,
              CHARINDEX('.',@SQLServerProductVersion,0)-1
              )) <= 8
        BEGIN
            SET @msg=N'sp_BlitzIndex is only supported on SQL Server 2005 and higher. The version of this instance is: ' + @SQLServerProductVersion;
            RAISERROR(@msg,16,1);
        END

        --Short circuit here if database name does not exist.
        IF @DatabaseName IS NULL OR @DatabaseID IS NULL
        BEGIN
            SET @msg='Database does not exist or is not online/multi-user: cannot proceed.'
            RAISERROR(@msg,16,1);
        END    

        --Validate parameters.
        IF (@Mode NOT IN (0,1,2,3,4))
        BEGIN
            SET @msg=N'Invalid @Mode parameter. 0=diagnose, 1=summarize, 2=index detail, 3=missing index detail, 4=diagnose detail';
            RAISERROR(@msg,16,1);
        END

        IF (@Mode <> 0 AND @TableName IS NOT NULL)
        BEGIN
            SET @msg=N'Setting the @Mode doesn''t change behavior if you supply @TableName. Use default @Mode=0 to see table detail.';
            RAISERROR(@msg,16,1);
        END

        IF ((@Mode <> 0 OR @TableName IS NOT NULL) and @Filter <> 0)
        BEGIN
            SET @msg=N'@Filter only appies when @Mode=0 and @TableName is not specified. Please try again.';
            RAISERROR(@msg,16,1);
        END

        IF (@SchemaName IS NOT NULL AND @TableName IS NULL) 
        BEGIN
            SET @msg='We can''t run against a whole schema! Specify a @TableName, or leave both NULL for diagnosis.'
            RAISERROR(@msg,16,1);
        END


        IF  (@TableName IS NOT NULL AND @SchemaName IS NULL)
        BEGIN
            SET @SchemaName=N'dbo'
            SET @msg='@SchemaName wasn''t specified-- assuming schema=dbo.'
            RAISERROR(@msg,1,1) WITH NOWAIT;
        END

        --If a table is specified, grab the object id.
        --Short circuit if it doesn't exist.
        IF @TableName IS NOT NULL
        BEGIN
            SET @dsql = N'
                    SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
                    SELECT    @ObjectID= OBJECT_ID
                    FROM    ' + QUOTENAME(@DatabaseName) + N'.sys.objects AS so
                    JOIN    ' + QUOTENAME(@DatabaseName) + N'.sys.schemas AS sc on 
                        so.schema_id=sc.schema_id
                    where so.type in (''U'', ''V'')
                    and so.name=' + QUOTENAME(@TableName,'''')+ N'
                    and sc.name=' + QUOTENAME(@SchemaName,'''')+ N'
                    /*Has a row in sys.indexes. This lets us get indexed views.*/
                    and exists (
                        SELECT si.name
                        FROM ' + QUOTENAME(@DatabaseName) + '.sys.indexes AS si 
                        WHERE so.object_id=si.object_id)
                    OPTION (RECOMPILE);';

            SET @params='@ObjectID INT OUTPUT'                

            IF @dsql IS NULL 
                RAISERROR('@dsql is null',16,1);

            EXEC sp_executesql @dsql, @params, @ObjectID=@ObjectID OUTPUT;
            
            IF @ObjectID IS NULL
                    BEGIN
                        SET @msg=N'Oh, this is awkward. I can''t find the table or indexed view you''re looking for in that database.' + CHAR(10) +
                            N'Please check your parameters.'
                        RAISERROR(@msg,1,1);
                        RETURN;
                    END
        END

        --set @collation
        SELECT @collation=collation_name
        FROM sys.databases
        where database_id=@DatabaseID;

        --insert columns for clustered indexes and heaps
        --collect info on identity columns for this one
        SET @dsql = N'SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
                SELECT ' + CAST(@DatabaseID AS NVARCHAR(16)) + ',    
                    si.object_id, 
                    si.index_id, 
                    sc.key_ordinal, 
                    sc.is_included_column, 
                    sc.is_descending_key,
                    sc.partition_ordinal,
                    c.name as column_name, 
                    st.name as system_type_name,
                    c.max_length,
                    c.[precision],
                    c.[scale],
                    c.collation_name,
                    c.is_nullable,
                    c.is_identity,
                    c.is_computed,
                    c.is_replicated,
                    ' + case when @SQLServerProductVersion not like '9%' THEN N'c.is_sparse' else N'NULL as is_sparse' END + N',
                    ' + case when @SQLServerProductVersion not like '9%' THEN N'c.is_filestream' else N'NULL as is_filestream' END + N',
                    CAST(ic.seed_value AS BIGINT),
                    CAST(ic.increment_value AS INT),
                    CAST(ic.last_value AS BIGINT),
                    ic.is_not_for_replication
                FROM    ' + QUOTENAME(@DatabaseName) + N'.sys.indexes si
                JOIN    ' + QUOTENAME(@DatabaseName) + N'.sys.columns c ON
                    si.object_id=c.object_id
                LEFT JOIN ' + QUOTENAME(@DatabaseName) + N'.sys.index_columns sc ON 
                    sc.object_id = si.object_id
                    and sc.index_id=si.index_id
                    AND sc.column_id=c.column_id
                LEFT JOIN ' + QUOTENAME(@DatabaseName) + N'.sys.identity_columns ic ON
                    c.object_id=ic.object_id and
                    c.column_id=ic.column_id
                JOIN ' + QUOTENAME(@DatabaseName) + N'.sys.types st ON 
                    c.system_type_id=st.system_type_id
                    AND c.user_type_id=st.user_type_id
                WHERE si.index_id in (0,1) ' 
                    + CASE WHEN @ObjectID IS NOT NULL 
                        THEN N' AND si.object_id=' + CAST(@ObjectID AS NVARCHAR(30)) 
                    ELSE N'' END 
                + N';';

        IF @dsql IS NULL 
            RAISERROR('@dsql is null',16,1);

        RAISERROR (N'Inserting data into #IndexColumns for clustered indexes and heaps',0,1) WITH NOWAIT;
        INSERT    #IndexColumns ( database_id, object_id, index_id, key_ordinal, is_included_column, is_descending_key, partition_ordinal,
            column_name, system_type_name, max_length, precision, scale, collation_name, is_nullable, is_identity, is_computed,
            is_replicated, is_sparse, is_filestream, seed_value, increment_value, last_value, is_not_for_replication )
                EXEC sp_executesql @dsql;

        --insert columns for nonclustered indexes
        --this uses a full join to sys.index_columns
        --We don't collect info on identity columns here. They may be in NC indexes, but we just analyze identities in the base table.
        SET @dsql = N'SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
                SELECT ' + CAST(@DatabaseID AS NVARCHAR(16)) + ',    
                    si.object_id, 
                    si.index_id, 
                    sc.key_ordinal, 
                    sc.is_included_column, 
                    sc.is_descending_key,
                    sc.partition_ordinal,
                    c.name as column_name, 
                    st.name as system_type_name,
                    c.max_length,
                    c.[precision],
                    c.[scale],
                    c.collation_name,
                    c.is_nullable,
                    c.is_identity,
                    c.is_computed,
                    c.is_replicated,
                    ' + case when @SQLServerProductVersion not like '9%' THEN N'c.is_sparse' else N'NULL AS is_sparse' END + N',
                    ' + case when @SQLServerProductVersion not like '9%' THEN N'c.is_filestream' else N'NULL AS is_filestream' END + N'                
                FROM    ' + QUOTENAME(@DatabaseName) + N'.sys.indexes AS si
                JOIN    ' + QUOTENAME(@DatabaseName) + N'.sys.columns AS c ON
                    si.object_id=c.object_id
                JOIN ' + QUOTENAME(@DatabaseName) + N'.sys.index_columns AS sc ON 
                    sc.object_id = si.object_id
                    and sc.index_id=si.index_id
                    AND sc.column_id=c.column_id
                JOIN ' + QUOTENAME(@DatabaseName) + N'.sys.types AS st ON 
                    c.system_type_id=st.system_type_id
                    AND c.user_type_id=st.user_type_id
                WHERE si.index_id not in (0,1) ' 
                    + CASE WHEN @ObjectID IS NOT NULL 
                        THEN N' AND si.object_id=' + CAST(@ObjectID AS NVARCHAR(30)) 
                    ELSE N'' END 
                + N';';

        IF @dsql IS NULL 
            RAISERROR('@dsql is null',16,1);

        RAISERROR (N'Inserting data into #IndexColumns for nonclustered indexes',0,1) WITH NOWAIT;
        INSERT    #IndexColumns ( database_id, object_id, index_id, key_ordinal, is_included_column, is_descending_key, partition_ordinal,
            column_name, system_type_name, max_length, precision, scale, collation_name, is_nullable, is_identity, is_computed,
            is_replicated, is_sparse, is_filestream )
                EXEC sp_executesql @dsql;
                    
        SET @dsql = N'SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
                SELECT    ' + CAST(@DatabaseID AS NVARCHAR(10)) + ' AS database_id, 
                        so.object_id, 
                        si.index_id, 
                        si.type,
                        ' + QUOTENAME(@DatabaseName, '''') + ' AS database_name, 
                        COALESCE(sc.NAME, ''Unknown'') AS [schema_name],
                        COALESCE(so.name, ''Unknown'') AS [object_name], 
                        COALESCE(si.name, ''Unknown'') AS [index_name],
                        CASE    WHEN so.[type] = CAST(''V'' AS CHAR(2)) THEN 1 ELSE 0 END, 
                        si.is_unique, 
                        si.is_primary_key, 
                        CASE when si.type = 3 THEN 1 ELSE 0 END AS is_XML,
                        CASE when si.type = 4 THEN 1 ELSE 0 END AS is_spatial,
                        CASE when si.type = 6 THEN 1 ELSE 0 END AS is_NC_columnstore,
                        CASE when si.type = 5 then 1 else 0 end as is_CX_columnstore,
                        si.is_disabled,
                        si.is_hypothetical, 
                        si.is_padded, 
                        si.fill_factor,'
                        + case when @SQLServerProductVersion not like '9%' THEN '
                        CASE WHEN si.filter_definition IS NOT NULL THEN si.filter_definition
                             ELSE ''''
                        END AS filter_definition' ELSE ''''' AS filter_definition' END + '
                        , ISNULL(us.user_seeks, 0), ISNULL(us.user_scans, 0),
                        ISNULL(us.user_lookups, 0), ISNULL(us.user_updates, 0), us.last_user_seek, us.last_user_scan,
                        us.last_user_lookup, us.last_user_update,
                        so.create_date, so.modify_date
                FROM    ' + QUOTENAME(@DatabaseName) + '.sys.indexes AS si WITH (NOLOCK)
                        JOIN ' + QUOTENAME(@DatabaseName) + '.sys.objects AS so WITH (NOLOCK) ON si.object_id = so.object_id
                                               AND so.is_ms_shipped = 0 /*Exclude objects shipped by Microsoft*/
                                               AND so.type <> ''TF'' /*Exclude table valued functions*/
                        JOIN ' + QUOTENAME(@DatabaseName) + '.sys.schemas sc ON so.schema_id = sc.schema_id
                        LEFT JOIN sys.dm_db_index_usage_stats AS us WITH (NOLOCK) ON si.[object_id] = us.[object_id]
                                                                       AND si.index_id = us.index_id
                                                                       AND us.database_id = '+ CAST(@DatabaseID AS NVARCHAR(10)) + '
                WHERE    si.[type] IN ( 0, 1, 2, 3, 4, 5, 6 ) 
                /* Heaps, clustered, nonclustered, XML, spatial, Cluster Columnstore, NC Columnstore */ ' +
                CASE WHEN @TableName IS NOT NULL THEN ' and so.name=' + QUOTENAME(@TableName,'''') + ' ' ELSE '' END + 
        'OPTION    ( RECOMPILE );
        ';
        IF @dsql IS NULL 
            RAISERROR('@dsql is null',16,1);

        RAISERROR (N'Inserting data into #IndexSanity',0,1) WITH NOWAIT;
        INSERT    #IndexSanity ( [database_id], [object_id], [index_id], [index_type], [database_name], [schema_name], [object_name],
                                index_name, is_indexed_view, is_unique, is_primary_key, is_XML, is_spatial, is_NC_columnstore, is_CX_columnstore,
                                is_disabled, is_hypothetical, is_padded, fill_factor, filter_definition, user_seeks, user_scans, 
                                user_lookups, user_updates, last_user_seek, last_user_scan, last_user_lookup, last_user_update,
                                create_date, modify_date )
                EXEC sp_executesql @dsql;

        RAISERROR (N'Updating #IndexSanity.key_column_names',0,1) WITH NOWAIT;
        UPDATE    #IndexSanity
        SET        key_column_names = D1.key_column_names
        FROM    #IndexSanity si
                CROSS APPLY ( SELECT    RTRIM(STUFF( (SELECT    N', ' + c.column_name 
                                    + N' {' + system_type_name + N' ' + CAST(max_length AS NVARCHAR(50)) +  N'}'
                                        AS col_definition
                                    FROM    #IndexColumns c
                                    WHERE    c.database_id= si.database_id
                                            AND c.object_id = si.object_id
                                            AND c.index_id = si.index_id
                                            AND c.is_included_column = 0 /*Just Keys*/
                                            AND c.key_ordinal > 0 /*Ignore non-key columns, such as partitioning keys*/
                                    ORDER BY c.object_id, c.index_id, c.key_ordinal    
                            FOR      XML PATH('') ,TYPE).value('.', 'varchar(max)'), 1, 1, ''))
                                        ) D1 ( key_column_names )

        RAISERROR (N'Updating #IndexSanity.partition_key_column_name',0,1) WITH NOWAIT;
        UPDATE    #IndexSanity
        SET        partition_key_column_name = D1.partition_key_column_name
        FROM    #IndexSanity si
                CROSS APPLY ( SELECT    RTRIM(STUFF( (SELECT    N', ' + c.column_name AS col_definition
                                    FROM    #IndexColumns c
                                    WHERE    c.database_id= si.database_id
                                            AND c.object_id = si.object_id
                                            AND c.index_id = si.index_id
                                            AND c.partition_ordinal <> 0 /*Just Partitioned Keys*/
                                    ORDER BY c.object_id, c.index_id, c.key_ordinal    
                            FOR      XML PATH('') , TYPE).value('.', 'varchar(max)'), 1, 1,''))) D1 
                                        ( partition_key_column_name )

        RAISERROR (N'Updating #IndexSanity.key_column_names_with_sort_order',0,1) WITH NOWAIT;
        UPDATE    #IndexSanity
        SET        key_column_names_with_sort_order = D2.key_column_names_with_sort_order
        FROM    #IndexSanity si
                CROSS APPLY ( SELECT    RTRIM(STUFF( (SELECT    N', ' + c.column_name + CASE c.is_descending_key
                                    WHEN 1 THEN N' DESC'
                                    ELSE N''
                                + N' {' + system_type_name + N' ' + CAST(max_length AS NVARCHAR(50)) +  N'}'
                                END AS col_definition
                            FROM    #IndexColumns c
                            WHERE    c.database_id= si.database_id
                                    AND c.object_id = si.object_id
                                    AND c.index_id = si.index_id
                                    AND c.is_included_column = 0 /*Just Keys*/
                                    AND c.key_ordinal > 0 /*Ignore non-key columns, such as partitioning keys*/
                            ORDER BY c.object_id, c.index_id, c.key_ordinal    
                    FOR      XML PATH('') , TYPE).value('.', 'varchar(max)'), 1, 1, ''))
                    ) D2 ( key_column_names_with_sort_order )

        RAISERROR (N'Updating #IndexSanity.key_column_names_with_sort_order_no_types (for create tsql)',0,1) WITH NOWAIT;
        UPDATE    #IndexSanity
        SET        key_column_names_with_sort_order_no_types = D2.key_column_names_with_sort_order_no_types
        FROM    #IndexSanity si
                CROSS APPLY ( SELECT    RTRIM(STUFF( (SELECT    N', ' + QUOTENAME(c.column_name) + CASE c.is_descending_key
                                    WHEN 1 THEN N' [DESC]'
                                    ELSE N''
                                END AS col_definition
                            FROM    #IndexColumns c
                            WHERE    c.database_id= si.database_id
                                    AND c.object_id = si.object_id
                                    AND c.index_id = si.index_id
                                    AND c.is_included_column = 0 /*Just Keys*/
                                    AND c.key_ordinal > 0 /*Ignore non-key columns, such as partitioning keys*/
                            ORDER BY c.object_id, c.index_id, c.key_ordinal    
                    FOR      XML PATH('') , TYPE).value('.', 'varchar(max)'), 1, 1, ''))
                    ) D2 ( key_column_names_with_sort_order_no_types )

        RAISERROR (N'Updating #IndexSanity.include_column_names',0,1) WITH NOWAIT;
        UPDATE    #IndexSanity
        SET        include_column_names = D3.include_column_names
        FROM    #IndexSanity si
                CROSS APPLY ( SELECT    RTRIM(STUFF( (SELECT    N', ' + c.column_name
                                + N' {' + system_type_name + N' ' + CAST(max_length AS NVARCHAR(50)) +  N'}'
                                FROM    #IndexColumns c
                                WHERE    c.database_id= si.database_id
                                        AND c.object_id = si.object_id
                                        AND c.index_id = si.index_id
                                        AND c.is_included_column = 1 /*Just includes*/
                                ORDER BY c.column_name /*Order doesn't matter in includes, 
                                        this is here to make rows easy to compare.*/ 
                        FOR      XML PATH('') ,  TYPE).value('.', 'varchar(max)'), 1, 1, ''))
                        ) D3 ( include_column_names );

        RAISERROR (N'Updating #IndexSanity.include_column_names_no_types (for create tsql)',0,1) WITH NOWAIT;
        UPDATE    #IndexSanity
        SET        include_column_names_no_types = D3.include_column_names_no_types
        FROM    #IndexSanity si
                CROSS APPLY ( SELECT    RTRIM(STUFF( (SELECT    N', ' + QUOTENAME(c.column_name)
                                FROM    #IndexColumns c
                                        WHERE    c.database_id= si.database_id
                                        AND c.object_id = si.object_id
                                        AND c.index_id = si.index_id
                                        AND c.is_included_column = 1 /*Just includes*/
                                ORDER BY c.column_name /*Order doesn't matter in includes, 
                                        this is here to make rows easy to compare.*/ 
                        FOR      XML PATH('') ,  TYPE).value('.', 'varchar(max)'), 1, 1, ''))
                        ) D3 ( include_column_names_no_types );

        RAISERROR (N'Updating #IndexSanity.count_key_columns and count_include_columns',0,1) WITH NOWAIT;
        UPDATE    #IndexSanity
        SET        count_included_columns = D4.count_included_columns,
                count_key_columns = D4.count_key_columns
        FROM    #IndexSanity si
                CROSS APPLY ( SELECT    SUM(CASE WHEN is_included_column = 'true' THEN 1
                                                 ELSE 0
                                            END) AS count_included_columns,
                                        SUM(CASE WHEN is_included_column = 'false' AND c.key_ordinal > 0 THEN 1
                                                 ELSE 0
                                            END) AS count_key_columns
                              FROM        #IndexColumns c
                                    WHERE    c.database_id= si.database_id
                                            AND c.object_id = si.object_id
                                        AND c.index_id = si.index_id 
                                        ) AS D4 ( count_included_columns, count_key_columns );

        IF (SELECT LEFT(@SQLServerProductVersion,
              CHARINDEX('.',@SQLServerProductVersion,0)-1
              )) <= 2147483647 --Anything other than 2012 
        BEGIN

            RAISERROR (N'Preferring non-2012 syntax with LEFT JOIN to sys.dm_db_index_operational_stats',0,1) WITH NOWAIT;

            --NOTE: we're joining to sys.dm_db_index_operational_stats differently than you might think (not using a cross apply)
            --This is because of quirks prior to SQL Server 2012 and in 2014 with this DMV.
            SET @dsql = N'SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
                        SELECT    ' + CAST(@DatabaseID AS NVARCHAR(10)) + ' AS database_id,
                                ps.object_id, 
                                ps.index_id, 
                                ps.partition_number, 
                                ps.row_count,
                                ps.reserved_page_count * 8. / 1024. AS reserved_MB,
                                ps.lob_reserved_page_count * 8. / 1024. AS reserved_LOB_MB,
                                ps.row_overflow_reserved_page_count * 8. / 1024. AS reserved_row_overflow_MB,
                                os.leaf_insert_count, 
                                os.leaf_delete_count, 
                                os.leaf_update_count, 
                                os.range_scan_count, 
                                os.singleton_lookup_count,  
                                os.forwarded_fetch_count,
                                os.lob_fetch_in_pages, 
                                os.lob_fetch_in_bytes, 
                                os.row_overflow_fetch_in_pages,
                                os.row_overflow_fetch_in_bytes, 
                                os.row_lock_count, 
                                os.row_lock_wait_count,
                                os.row_lock_wait_in_ms, 
                                os.page_lock_count, 
                                os.page_lock_wait_count, 
                                os.page_lock_wait_in_ms,
                                os.index_lock_promotion_attempt_count, 
                                os.index_lock_promotion_count, 
                            ' + case when @SQLServerProductVersion not like '9%' THEN 'par.data_compression_desc ' ELSE 'null as data_compression_desc' END + '
                    FROM    ' + QUOTENAME(@DatabaseName) + '.sys.dm_db_partition_stats AS ps  
                    JOIN ' + QUOTENAME(@DatabaseName) + '.sys.partitions AS par on ps.partition_id=par.partition_id
                    JOIN ' + QUOTENAME(@DatabaseName) + '.sys.objects AS so ON ps.object_id = so.object_id
                               AND so.is_ms_shipped = 0 /*Exclude objects shipped by Microsoft*/
                               AND so.type <> ''TF'' /*Exclude table valued functions*/
                    LEFT JOIN ' + QUOTENAME(@DatabaseName) + '.sys.dm_db_index_operational_stats('
                + CAST(@DatabaseID AS NVARCHAR(10)) + ', NULL, NULL,NULL) AS os ON
                    ps.object_id=os.object_id and ps.index_id=os.index_id and ps.partition_number=os.partition_number 
                    WHERE 1=1 
                    ' + CASE WHEN @ObjectID IS NOT NULL THEN N'AND so.object_id=' + CAST(@ObjectID AS NVARCHAR(30)) + N' ' ELSE N' ' END + '
                    ' + CASE WHEN @Filter = 2 THEN N'AND ps.reserved_page_count * 8./1024. > ' + CAST(@FilterMB AS NVARCHAR(5)) + N' ' ELSE N' ' END + '
            ORDER BY ps.object_id,  ps.index_id, ps.partition_number
            OPTION    ( RECOMPILE );
            ';
        END
        ELSE /* Otherwise use this syntax which takes advantage of OUTER APPLY on the os_partitions DMV. 
        This performs better on 2012 tables using 1000+ partitions. */
        BEGIN
        RAISERROR (N'Using 2012 syntax to query sys.dm_db_index_operational_stats',0,1) WITH NOWAIT;

         SET @dsql = N'SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
                        SELECT  ' + CAST(@DatabaseID AS NVARCHAR(10)) + ' AS database_id,
                                ps.object_id, 
                                ps.index_id, 
                                ps.partition_number, 
                                ps.row_count,
                                ps.reserved_page_count * 8. / 1024. AS reserved_MB,
                                ps.lob_reserved_page_count * 8. / 1024. AS reserved_LOB_MB,
                                ps.row_overflow_reserved_page_count * 8. / 1024. AS reserved_row_overflow_MB,
                                os.leaf_insert_count, 
                                os.leaf_delete_count, 
                                os.leaf_update_count, 
                                os.range_scan_count, 
                                os.singleton_lookup_count,  
                                os.forwarded_fetch_count,
                                os.lob_fetch_in_pages, 
                                os.lob_fetch_in_bytes, 
                                os.row_overflow_fetch_in_pages,
                                os.row_overflow_fetch_in_bytes, 
                                os.row_lock_count, 
                                os.row_lock_wait_count,
                                os.row_lock_wait_in_ms, 
                                os.page_lock_count, 
                                os.page_lock_wait_count, 
                                os.page_lock_wait_in_ms,
                                os.index_lock_promotion_attempt_count, 
                                os.index_lock_promotion_count, 
                                ' + case when @SQLServerProductVersion not like '9%' THEN N'par.data_compression_desc ' ELSE N'null as data_compression_desc' END + N'
                        FROM    ' + QUOTENAME(@DatabaseName) + N'.sys.dm_db_partition_stats AS ps  
                        JOIN ' + QUOTENAME(@DatabaseName) + N'.sys.partitions AS par on ps.partition_id=par.partition_id
                        JOIN ' + QUOTENAME(@DatabaseName) + N'.sys.objects AS so ON ps.object_id = so.object_id
                                   AND so.is_ms_shipped = 0 /*Exclude objects shipped by Microsoft*/
                                   AND so.type <> ''TF'' /*Exclude table valued functions*/
                        OUTER APPLY ' + QUOTENAME(@DatabaseName) + N'.sys.dm_db_index_operational_stats('
                    + CAST(@DatabaseID AS NVARCHAR(10)) + N', ps.object_id, ps.index_id,ps.partition_number) AS os
                        WHERE 1=1 
                        ' + CASE WHEN @ObjectID IS NOT NULL THEN N'AND so.object_id=' + CAST(@ObjectID AS NVARCHAR(30)) + N' ' ELSE N' ' END + N'
                        ' + CASE WHEN @Filter = 2 THEN N'AND ps.reserved_page_count * 8./1024. > ' + CAST(@FilterMB AS NVARCHAR(5)) + N' ' ELSE N' ' END + '
                ORDER BY ps.object_id,  ps.index_id, ps.partition_number
                OPTION    ( RECOMPILE );
                ';
 
        END       

        IF @dsql IS NULL 
            RAISERROR('@dsql is null',16,1);

        RAISERROR (N'Inserting data into #IndexPartitionSanity',0,1) WITH NOWAIT;
        insert    #IndexPartitionSanity (        [database_id],
                                            [object_id], 
                                            index_id, 
                                            partition_number, 
                                            row_count, 
                                            reserved_MB,
                                          reserved_LOB_MB, 
                                          reserved_row_overflow_MB, 
                                          leaf_insert_count,
                                          leaf_delete_count, 
                                          leaf_update_count, 
                                          range_scan_count,
                                          singleton_lookup_count,
                                          forwarded_fetch_count, 
                                          lob_fetch_in_pages, 
                                          lob_fetch_in_bytes, 
                                          row_overflow_fetch_in_pages,
                                          row_overflow_fetch_in_bytes, 
                                          row_lock_count, 
                                          row_lock_wait_count,
                                          row_lock_wait_in_ms, 
                                          page_lock_count, 
                                          page_lock_wait_count,
                                          page_lock_wait_in_ms, 
                                          index_lock_promotion_attempt_count,
                                          index_lock_promotion_count, 
                                          data_compression_desc )
                EXEC sp_executesql @dsql;
        
        RAISERROR (N'Updating index_sanity_id on #IndexPartitionSanity',0,1) WITH NOWAIT;
        UPDATE    #IndexPartitionSanity
        SET        index_sanity_id = i.index_sanity_id
        FROM #IndexPartitionSanity ps
                JOIN #IndexSanity i ON ps.[object_id] = i.[object_id]
                                        AND ps.index_id = i.index_id
                                        AND i.database_id = ps.database_id

        RAISERROR (N'Inserting data into #IndexSanitySize',0,1) WITH NOWAIT;
        INSERT    #IndexSanitySize ( [index_sanity_id], [database_id], partition_count, total_rows, total_reserved_MB,
                                     total_reserved_LOB_MB, total_reserved_row_overflow_MB, total_range_scan_count,
                                     total_singleton_lookup_count, total_leaf_delete_count, total_leaf_update_count, 
                                     total_forwarded_fetch_count,total_row_lock_count,
                                     total_row_lock_wait_count, total_row_lock_wait_in_ms, avg_row_lock_wait_in_ms,
                                     total_page_lock_count, total_page_lock_wait_count, total_page_lock_wait_in_ms,
                                     avg_page_lock_wait_in_ms, total_index_lock_promotion_attempt_count, 
                                     total_index_lock_promotion_count, data_compression_desc )
                SELECT    index_sanity_id, ipp.database_id, COUNT(*), SUM(row_count), SUM(reserved_MB), SUM(reserved_LOB_MB),
                        SUM(reserved_row_overflow_MB), 
                        SUM(range_scan_count),
                        SUM(singleton_lookup_count),
                        SUM(leaf_delete_count), 
                        SUM(leaf_update_count),
                        SUM(forwarded_fetch_count),
                        SUM(row_lock_count), 
                        SUM(row_lock_wait_count),
                        SUM(row_lock_wait_in_ms), 
                        CASE WHEN SUM(row_lock_wait_in_ms) > 0 THEN
                            SUM(row_lock_wait_in_ms)/(1.*SUM(row_lock_wait_count))
                        ELSE 0 END AS avg_row_lock_wait_in_ms,           
                        SUM(page_lock_count), 
                        SUM(page_lock_wait_count),
                        SUM(page_lock_wait_in_ms), 
                        CASE WHEN SUM(page_lock_wait_in_ms) > 0 THEN
                            SUM(page_lock_wait_in_ms)/(1.*SUM(page_lock_wait_count))
                        ELSE 0 END AS avg_page_lock_wait_in_ms,           
                        SUM(index_lock_promotion_attempt_count),
                        SUM(index_lock_promotion_count),
                        LEFT(MAX(data_compression_info.data_compression_rollup),8000)
                FROM #IndexPartitionSanity ipp
                /* individual partitions can have distinct compression settings, just roll them into a list here*/
                OUTER APPLY (SELECT STUFF((
                    SELECT    N', ' + data_compression_desc
                    FROM #IndexPartitionSanity ipp2
                    WHERE ipp.[object_id]=ipp2.[object_id]
                        AND ipp.[index_id]=ipp2.[index_id]
                        AND ipp.database_id = @DatabaseID
                    ORDER BY ipp2.partition_number
                    FOR      XML PATH(''),TYPE).value('.', 'varchar(max)'), 1, 1, '')) 
                        data_compression_info(data_compression_rollup)
                WHERE ipp.database_id = @DatabaseID
                GROUP BY index_sanity_id, ipp.database_id
                ORDER BY index_sanity_id 
        OPTION    ( RECOMPILE );

        RAISERROR (N'Adding UQ index on #IndexSanity (database_id, object_id, index_id)',0,1) WITH NOWAIT;
        IF NOT EXISTS(SELECT 1 FROM tempdb.sys.indexes WHERE name='uq_database_id_object_id_index_id') 
            CREATE UNIQUE INDEX uq_database_id_object_id_index_id ON #IndexSanity (database_id, object_id, index_id);

        RAISERROR (N'Inserting data into #MissingIndexes',0,1) WITH NOWAIT;
        SET @dsql=N'SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED;
                SELECT    id.object_id, ' + QUOTENAME(@DatabaseName,'''') + N', sc.[name], so.[name], id.statement , gs.avg_total_user_cost, 
                        gs.avg_user_impact, gs.user_seeks, gs.user_scans, gs.unique_compiles,id.equality_columns, 
                        id.inequality_columns,id.included_columns
                FROM    sys.dm_db_missing_index_groups ig
                        JOIN sys.dm_db_missing_index_details id ON ig.index_handle = id.index_handle
                        JOIN sys.dm_db_missing_index_group_stats gs ON ig.index_group_handle = gs.group_handle
                        JOIN ' + QUOTENAME(@DatabaseName) + N'.sys.objects so on 
                            id.object_id=so.object_id
                        JOIN ' + QUOTENAME(@DatabaseName) + N'.sys.schemas sc on 
                            so.schema_id=sc.schema_id
                WHERE    id.database_id = ' + CAST(@DatabaseID AS NVARCHAR(30)) + '
                ' + CASE WHEN @ObjectID IS NULL THEN N'' 
                    ELSE N'and id.object_id=' + CAST(@ObjectID AS NVARCHAR(30)) 
                END +
        N';'

        IF @dsql IS NULL 
            RAISERROR('@dsql is null',16,1);
        INSERT    #MissingIndexes ( [object_id], [database_name], [schema_name], [table_name], [statement], avg_total_user_cost, 
                                    avg_user_impact, user_seeks, user_scans, unique_compiles, equality_columns, 
                                    inequality_columns,included_columns)
        EXEC sp_executesql @dsql;

        SET @dsql = N'
            SELECT ' + QUOTENAME(@DatabaseName,'''')  + N' AS [database_name],
                fk_object.name AS foreign_key_name,
                parent_object.[object_id] AS parent_object_id,
                parent_object.name AS parent_object_name,
                referenced_object.[object_id] AS referenced_object_id,
                referenced_object.name AS referenced_object_name,
                fk.is_disabled,
                fk.is_not_trusted,
                fk.is_not_for_replication,
                parent.fk_columns,
                referenced.fk_columns,
                [update_referential_action_desc],
                [delete_referential_action_desc]
            FROM ' + QUOTENAME(@DatabaseName) + N'.sys.foreign_keys fk
            JOIN ' + QUOTENAME(@DatabaseName) + N'.sys.objects fk_object ON fk.object_id=fk_object.object_id
            JOIN ' + QUOTENAME(@DatabaseName) + N'.sys.objects parent_object ON fk.parent_object_id=parent_object.object_id
            JOIN ' + QUOTENAME(@DatabaseName) + N'.sys.objects referenced_object ON fk.referenced_object_id=referenced_object.object_id
            CROSS APPLY ( SELECT    STUFF( (SELECT    N'', '' + c_parent.name AS fk_columns
                                            FROM    ' + QUOTENAME(@DatabaseName) + N'.sys.foreign_key_columns fkc 
                                            JOIN ' + QUOTENAME(@DatabaseName) + N'.sys.columns c_parent ON fkc.parent_object_id=c_parent.[object_id]
                                                AND fkc.parent_column_id=c_parent.column_id
                                            WHERE    fk.parent_object_id=fkc.parent_object_id
                                                AND fk.[object_id]=fkc.constraint_object_id
                                            ORDER BY fkc.constraint_column_id 
                                    FOR      XML PATH('''') ,
                                              TYPE).value(''.'', ''varchar(max)''), 1, 1, '''')/*This is how we remove the first comma*/ ) parent ( fk_columns )
            CROSS APPLY ( SELECT    STUFF( (SELECT    N'', '' + c_referenced.name AS fk_columns
                                            FROM    ' + QUOTENAME(@DatabaseName) + N'.sys.    foreign_key_columns fkc 
                                            JOIN ' + QUOTENAME(@DatabaseName) + N'.sys.columns c_referenced ON fkc.referenced_object_id=c_referenced.[object_id]
                                                AND fkc.referenced_column_id=c_referenced.column_id
                                            WHERE    fk.referenced_object_id=fkc.referenced_object_id
                                                and fk.[object_id]=fkc.constraint_object_id
                                            ORDER BY fkc.constraint_column_id  /*order by col name, we don''t have anything better*/
                                    FOR      XML PATH('''') ,
                                              TYPE).value(''.'', ''varchar(max)''), 1, 1, '''') ) referenced ( fk_columns )
            ' + CASE WHEN @ObjectID IS NOT NULL THEN 
                    'WHERE fk.parent_object_id=' + CAST(@ObjectID AS NVARCHAR(30)) + N' OR fk.referenced_object_id=' + CAST(@ObjectID AS NVARCHAR(30)) + N' ' 
                    ELSE N' ' END + '
            ORDER BY parent_object_name, foreign_key_name;
        ';
        IF @dsql IS NULL 
            RAISERROR('@dsql is null',16,1);

        RAISERROR (N'Inserting data into #ForeignKeys',0,1) WITH NOWAIT;
        INSERT  #ForeignKeys ( [database_name], foreign_key_name, parent_object_id,parent_object_name, referenced_object_id, referenced_object_name,
                                is_disabled, is_not_trusted, is_not_for_replication, parent_fk_columns, referenced_fk_columns,
                                [update_referential_action_desc], [delete_referential_action_desc] )
                EXEC sp_executesql @dsql;

        RAISERROR (N'Updating #IndexSanity.referenced_by_foreign_key',0,1) WITH NOWAIT;
        UPDATE #IndexSanity
            SET is_referenced_by_foreign_key=1
        FROM #IndexSanity s
        JOIN #ForeignKeys fk ON 
            s.object_id=fk.referenced_object_id
            AND LEFT(s.key_column_names,LEN(fk.referenced_fk_columns)) = fk.referenced_fk_columns

        RAISERROR (N'Add computed columns to #IndexSanity to simplify queries.',0,1) WITH NOWAIT;
        IF NOT EXISTS(SELECT 1 FROM tempdb.sys.columns WHERE name='db_schema_object_name') 
            ALTER TABLE #IndexSanity ADD 
            [db_schema_object_name] AS [schema_name] + '.' + [object_name]  ,
            [db_schema_object_indexid] AS [schema_name] + '.' + [object_name]
                + CASE WHEN [index_name] IS NOT NULL THEN '.' + index_name
                ELSE ''
                END + ' (' + CAST(index_id AS NVARCHAR(20)) + ')' ,
            first_key_column_name AS CASE    WHEN count_key_columns > 1
                THEN LEFT(key_column_names, CHARINDEX(',', key_column_names, 0) - 1)
                ELSE key_column_names
                END ,
            index_definition AS 
            CASE WHEN partition_key_column_name IS NOT NULL 
                THEN N'[PARTITIONED BY:' + partition_key_column_name +  N']' 
                ELSE '' 
                END +
                CASE index_id
                    WHEN 0 THEN N'[HEAP] '
                    WHEN 1 THEN N'[CX] '
                    ELSE N'' END + CASE WHEN is_indexed_view = 1 THEN '[VIEW] '
                    ELSE N'' END + CASE WHEN is_primary_key = 1 THEN N'[PK] '
                    ELSE N'' END + CASE WHEN is_XML = 1 THEN N'[XML] '
                    ELSE N'' END + CASE WHEN is_spatial = 1 THEN N'[SPATIAL] '
                    ELSE N'' END + CASE WHEN is_NC_columnstore = 1 THEN N'[COLUMNSTORE] '
                    ELSE N'' END + CASE WHEN is_disabled = 1 THEN N'[DISABLED] '
                    ELSE N'' END + CASE WHEN is_hypothetical = 1 THEN N'[HYPOTHETICAL] '
                    ELSE N'' END + CASE WHEN is_unique = 1 AND is_primary_key = 0 THEN N'[UNIQUE] '
                    ELSE N'' END + CASE WHEN count_key_columns > 0 THEN 
                        N'[' + CAST(count_key_columns AS VARCHAR(10)) + N' KEY' 
                            + CASE WHEN count_key_columns > 1 then  N'S' ELSE N'' END
                            + N'] ' + LTRIM(key_column_names_with_sort_order)
                    ELSE N'' END + CASE WHEN count_included_columns > 0 THEN 
                        N' [' + CAST(count_included_columns AS VARCHAR(10))  + N' INCLUDE' + 
                            + CASE WHEN count_included_columns > 1 then  N'S' ELSE N'' END                    
                            + N'] ' + include_column_names
                    ELSE N'' END + CASE WHEN filter_definition <> N'' THEN N' [FILTER] ' + filter_definition
                    ELSE N'' END ,
            [total_reads] AS user_seeks + user_scans + user_lookups,
            [reads_per_write] AS CAST(CASE WHEN user_updates > 0
                THEN ( user_seeks + user_scans + user_lookups )  / (1.0 * user_updates)
                ELSE 0 END AS MONEY) ,
            [index_usage_summary] AS N'Reads: ' + 
                REPLACE(CONVERT(NVARCHAR(30),CAST((user_seeks + user_scans + user_lookups) AS money), 1), '.00', '')
                + case when user_seeks + user_scans + user_lookups > 0 then
                    N' (' 
                        + RTRIM(
                        CASE WHEN user_seeks > 0 then REPLACE(CONVERT(NVARCHAR(30),CAST((user_seeks) AS money), 1), '.00', '') + N' seek ' ELSE N'' END
                        + CASE WHEN user_scans > 0 then REPLACE(CONVERT(NVARCHAR(30),CAST((user_scans) AS money), 1), '.00', '') + N' scan '  ELSE N'' END
                        + CASE WHEN user_lookups > 0 then  REPLACE(CONVERT(NVARCHAR(30),CAST((user_lookups) AS money), 1), '.00', '') + N' lookup' ELSE N'' END
                        )
                        + N') '
                    else N' ' end 
                + N'Writes:' + 
                REPLACE(CONVERT(NVARCHAR(30),CAST(user_updates AS money), 1), '.00', ''),
            [more_info] AS N'EXEC dbo.sp_BlitzIndex @DatabaseName=' + QUOTENAME([database_name],'''') + 
                N', @SchemaName=' + QUOTENAME([schema_name],'''') + N', @TableName=' + QUOTENAME([object_name],'''') + N';'

        RAISERROR (N'Update index_secret on #IndexSanity for NC indexes.',0,1) WITH NOWAIT;
        UPDATE nc 
        SET secret_columns=
            N'[' + 
            CASE tb.count_key_columns WHEN 0 THEN '1' ELSE CAST(tb.count_key_columns AS VARCHAR(10)) END +
            CASE nc.is_unique WHEN 1 THEN N' INCLUDE' ELSE N' KEY' END +
            CASE WHEN tb.count_key_columns > 1 then  N'S] ' ELSE N'] ' END +
            CASE tb.index_id WHEN 0 THEN '[RID]' ELSE LTRIM(tb.key_column_names) +
                /* Uniquifiers only needed on non-unique clustereds-- not heaps */
                CASE tb.is_unique WHEN 0 THEN ' [UNIQUIFIER]' ELSE N'' END
            END
            , count_secret_columns=
            CASE tb.index_id WHEN 0 THEN 1 ELSE 
                tb.count_key_columns +
                    CASE tb.is_unique WHEN 0 THEN 1 ELSE 0 END
            END
        FROM #IndexSanity AS nc
        JOIN #IndexSanity AS tb ON nc.object_id=tb.object_id
            and tb.index_id in (0,1) 
        WHERE nc.index_id > 1;

        RAISERROR (N'Update index_secret on #IndexSanity for heaps and non-unique clustered.',0,1) WITH NOWAIT;
        UPDATE tb
        SET secret_columns=    CASE tb.index_id WHEN 0 THEN '[RID]' ELSE '[UNIQUIFIER]' END
            , count_secret_columns = 1
        FROM #IndexSanity AS tb
        WHERE tb.index_id = 0 /*Heaps-- these have the RID */
            or (tb.index_id=1 and tb.is_unique=0); /* Non-unique CX: has uniquifer (when needed) */

        RAISERROR (N'Add computed columns to #IndexSanitySize to simplify queries.',0,1) WITH NOWAIT;

        IF NOT EXISTS(SELECT 1 FROM tempdb.sys.columns AS sc
                        JOIN tempdb..sysobjects AS so ON so.id = sc.object_id
                        WHERE sc.name='index_size_summary' AND so.name LIKE '#IndexSanitySize_%') 
        ALTER TABLE #IndexSanitySize ADD 
              index_size_summary AS ISNULL(
                CASE WHEN partition_count > 1
                        THEN N'[' + CAST(partition_count AS NVARCHAR(10)) + N' PARTITIONS] '
                        ELSE N''
                END + REPLACE(CONVERT(NVARCHAR(30),CAST([total_rows] AS money), 1), N'.00', N'') + N' rows; '
                + CASE WHEN total_reserved_MB > 1024 THEN 
                    CAST(CAST(total_reserved_MB/1024. AS NUMERIC(29,1)) AS NVARCHAR(30)) + N'GB'
                ELSE 
                    CAST(CAST(total_reserved_MB AS NUMERIC(29,1)) AS NVARCHAR(30)) + N'MB'
                END
                + CASE WHEN total_reserved_LOB_MB > 1024 THEN 
                    N'; ' + CAST(CAST(total_reserved_LOB_MB/1024. AS NUMERIC(29,1)) AS NVARCHAR(30)) + N'GB LOB'
                WHEN total_reserved_LOB_MB > 0 THEN
                    N'; ' + CAST(CAST(total_reserved_LOB_MB AS NUMERIC(29,1)) AS NVARCHAR(30)) + N'MB LOB'
                ELSE ''
                END
                 + CASE WHEN total_reserved_row_overflow_MB > 1024 THEN
                    N'; ' + CAST(CAST(total_reserved_row_overflow_MB/1024. AS NUMERIC(29,1)) AS NVARCHAR(30)) + N'GB Row Overflow'
                WHEN total_reserved_row_overflow_MB > 0 THEN
                    N'; ' + CAST(CAST(total_reserved_row_overflow_MB AS NUMERIC(29,1)) AS NVARCHAR(30)) + N'MB Row Overflow'
                ELSE ''
                END ,
                    N'Error- NULL in computed column'),
            index_op_stats AS ISNULL(
                (
                    REPLACE(CONVERT(NVARCHAR(30),CAST(total_singleton_lookup_count AS MONEY), 1),N'.00',N'') + N' singleton lookups; '
                    + REPLACE(CONVERT(NVARCHAR(30),CAST(total_range_scan_count AS MONEY), 1),N'.00',N'') + N' scans/seeks; '
                    + REPLACE(CONVERT(NVARCHAR(30),CAST(total_leaf_delete_count AS MONEY), 1),N'.00',N'') + N' deletes; '
                    + REPLACE(CONVERT(NVARCHAR(30),CAST(total_leaf_update_count AS MONEY), 1),N'.00',N'') + N' updates; '
                    + CASE WHEN ISNULL(total_forwarded_fetch_count,0) >0 THEN
                        REPLACE(CONVERT(NVARCHAR(30),CAST(total_forwarded_fetch_count AS MONEY), 1),N'.00',N'') + N' forward records fetched; '
                    ELSE N'' END

                    /* rows will only be in this dmv when data is in memory for the table */
                ), N'Table metadata not in memory'),
            index_lock_wait_summary AS ISNULL(
                CASE WHEN total_row_lock_wait_count = 0 and  total_page_lock_wait_count = 0 and
                    total_index_lock_promotion_attempt_count = 0 THEN N'0 lock waits.'
                ELSE
                    CASE WHEN total_row_lock_wait_count > 0 THEN
                        N'Row lock waits: ' + REPLACE(CONVERT(NVARCHAR(30),CAST(total_row_lock_wait_count AS money), 1), N'.00', N'')
                        + N'; total duration: ' + 
                            CASE WHEN total_row_lock_wait_in_ms >= 60000 THEN /*More than 1 min*/
                                REPLACE(CONVERT(NVARCHAR(30),CAST((total_row_lock_wait_in_ms/60000) AS money), 1), N'.00', N'') + N' minutes; '
                            ELSE                         
                                REPLACE(CONVERT(NVARCHAR(30),CAST(ISNULL(total_row_lock_wait_in_ms/1000,0) AS money), 1), N'.00', N'') + N' seconds; '
                            END
                        + N'avg duration: ' + 
                            CASE WHEN avg_row_lock_wait_in_ms >= 60000 THEN /*More than 1 min*/
                                REPLACE(CONVERT(NVARCHAR(30),CAST((avg_row_lock_wait_in_ms/60000) AS money), 1), N'.00', N'') + N' minutes; '
                            ELSE                         
                                REPLACE(CONVERT(NVARCHAR(30),CAST(ISNULL(avg_row_lock_wait_in_ms/1000,0) AS money), 1), N'.00', N'') + N' seconds; '
                            END
                    ELSE N''
                    END +
                    CASE WHEN total_page_lock_wait_count > 0 THEN
                        N'Page lock waits: ' + REPLACE(CONVERT(NVARCHAR(30),CAST(total_page_lock_wait_count AS money), 1), N'.00', N'')
                        + N'; total duration: ' + 
                            CASE WHEN total_page_lock_wait_in_ms >= 60000 THEN /*More than 1 min*/
                                REPLACE(CONVERT(NVARCHAR(30),CAST((total_page_lock_wait_in_ms/60000) AS money), 1), N'.00', N'') + N' minutes; '
                            ELSE                         
                                REPLACE(CONVERT(NVARCHAR(30),CAST(ISNULL(total_page_lock_wait_in_ms/1000,0) AS money), 1), N'.00', N'') + N' seconds; '
                            END
                        + N'avg duration: ' + 
                            CASE WHEN avg_page_lock_wait_in_ms >= 60000 THEN /*More than 1 min*/
                                REPLACE(CONVERT(NVARCHAR(30),CAST((avg_page_lock_wait_in_ms/60000) AS money), 1), N'.00', N'') + N' minutes; '
                            ELSE                         
                                REPLACE(CONVERT(NVARCHAR(30),CAST(ISNULL(avg_page_lock_wait_in_ms/1000,0) AS money), 1), N'.00', N'') + N' seconds; '
                            END
                    ELSE N''
                    END +
                    CASE WHEN total_index_lock_promotion_attempt_count > 0 THEN
                        N'Lock escalation attempts: ' + REPLACE(CONVERT(NVARCHAR(30),CAST(total_index_lock_promotion_attempt_count AS money), 1), N'.00', N'')
                        + N'; Actual Escalations: ' + REPLACE(CONVERT(NVARCHAR(30),CAST(ISNULL(total_index_lock_promotion_count,0) AS money), 1), N'.00', N'') + N'.'
                    ELSE N''
                    END
                END                  
                    ,'Error- NULL in computed column')

        RAISERROR (N'Add computed columns to #missing_index to simplify queries.',0,1) WITH NOWAIT;
                IF NOT EXISTS(SELECT 1 FROM tempdb.sys.columns AS sc
                        JOIN tempdb..sysobjects AS so ON so.id = sc.object_id
                        WHERE sc.name='index_estimated_impact' AND so.name LIKE '#MissingIndexes_%') 

        ALTER TABLE #MissingIndexes ADD 
                [index_estimated_impact] AS 
                    REPLACE(CONVERT(NVARCHAR(256),CAST(CAST(
                                    (user_seeks + user_scans)
                                     AS BIGINT) AS money), 1), '.00', '') + N' use' 
                        + CASE WHEN (user_seeks + user_scans) > 1 THEN N's' ELSE N'' END
                         +N'; Impact: ' + CAST(avg_user_impact AS NVARCHAR(30))
                        + N'%; Avg query cost: '
                        + CAST(avg_total_user_cost AS NVARCHAR(30)),
                [missing_index_details] AS
                    CASE WHEN equality_columns IS NOT NULL THEN N'EQUALITY: ' + equality_columns + N' '
                         ELSE N''
                    END + CASE WHEN inequality_columns IS NOT NULL THEN N'INEQUALITY: ' + inequality_columns + N' '
                       ELSE N''
                    END + CASE WHEN included_columns IS NOT NULL THEN N'INCLUDES: ' + included_columns + N' '
                        ELSE N''
                    END,
                [create_tsql] AS N'CREATE INDEX [ix_' + table_name + N'_' 
                    + REPLACE(REPLACE(REPLACE(REPLACE(
                        ISNULL(equality_columns,N'')+ 
                        CASE when equality_columns is not null and inequality_columns is not null then N'_' else N'' END
                        + ISNULL(inequality_columns,''),',','')
                        ,'[',''),']',''),' ','_') 
                    + CASE WHEN included_columns IS NOT NULL THEN N'_includes' ELSE N'' END + N'] ON ' 
                    + [statement] + N' (' + ISNULL(equality_columns,N'')
                    + CASE WHEN equality_columns IS NOT NULL AND inequality_columns IS NOT NULL THEN N', ' ELSE N'' END
                    + CASE WHEN inequality_columns IS NOT NULL THEN inequality_columns ELSE N'' END + 
                    ') ' + CASE WHEN included_columns IS NOT NULL THEN N' INCLUDE (' + included_columns + N')' ELSE N'' END
                    + N' WITH (' 
                        + N'FILLFACTOR=100, ONLINE=?, SORT_IN_TEMPDB=?' 
                    + N')'
                    + N';'
                    ,
                [more_info] AS N'EXEC dbo.sp_BlitzIndex @DatabaseName=' + QUOTENAME([database_name],'''') + 
                    N', @SchemaName=' + QUOTENAME([schema_name],'''') + N', @TableName=' + QUOTENAME([table_name],'''') + N';'
                ;

        RAISERROR (N'Populate #IndexCreateTsql.',0,1) WITH NOWAIT;
        INSERT #IndexCreateTsql (index_sanity_id, create_tsql)
        SELECT
            index_sanity_id,
            ISNULL (
            /* Script drops for disabled non-clustered indexes*/
            CASE WHEN is_disabled = 1 AND index_id <> 1
                THEN N'--DROP INDEX ' + QUOTENAME([index_name]) + N' ON '
                 + QUOTENAME([schema_name]) + N'.' + QUOTENAME([object_name]) 
            ELSE
                CASE index_id WHEN 0 THEN N'--I''m a Heap!' 
                ELSE 
                    CASE WHEN is_XML = 1 OR is_spatial=1 THEN N'' /* Not even trying for these just yet...*/
                    ELSE 
                        CASE WHEN is_primary_key=1 THEN
                            N'ALTER TABLE ' + QUOTENAME([schema_name]) +
                                N'.' + QUOTENAME([object_name]) + 
                                N' ADD CONSTRAINT [' +
                                index_name + 
                                N'] PRIMARY KEY ' + 
                                CASE WHEN index_id=1 THEN N'CLUSTERED (' ELSE N'(' END +
                                key_column_names_with_sort_order_no_types + N' )' 
                            WHEN is_CX_columnstore= 1 THEN
                                 N'CREATE CLUSTERED COLUMNSTORE INDEX ' + QUOTENAME(index_name) + N' on ' + QUOTENAME([schema_name]) + '.' + QUOTENAME([object_name])
                        ELSE /*Else not a PK or cx columnstore */ 
                            N'CREATE ' + 
                            CASE WHEN is_unique=1 THEN N'UNIQUE ' ELSE N'' END +
                            CASE WHEN index_id=1 THEN N'CLUSTERED ' ELSE N'' END +
                            CASE WHEN is_NC_columnstore=1 THEN N'NONCLUSTERED COLUMNSTORE ' 
                            ELSE N'' END +
                            N'INDEX ['
                                 + index_name + N'] ON ' + 
                                QUOTENAME([schema_name]) + '.' + QUOTENAME([object_name]) + 
                                    CASE WHEN is_NC_columnstore=1 THEN 
                                        N' (' + ISNULL(include_column_names_no_types,'') +  N' )' 
                                    ELSE /*Else not colunnstore */ 
                                        N' (' + ISNULL(key_column_names_with_sort_order_no_types,'') +  N' )' 
                                        + CASE WHEN include_column_names_no_types IS NOT NULL THEN 
                                            N' INCLUDE (' + include_column_names_no_types + N')' 
                                            ELSE N'' 
                                        END
                                    END /*End non-colunnstore case */ 
                                + CASE WHEN filter_definition <> N'' THEN N' WHERE ' + filter_definition ELSE N'' END
                            END /*End Non-PK index CASE */ 
                        + CASE WHEN is_NC_columnstore=0 and is_CX_columnstore=0 then
                            N' WITH (' 
                                + N'FILLFACTOR=' + CASE fill_factor when 0 then N'100' else CAST(fill_factor AS NVARCHAR(5)) END + ', '
                                + N'ONLINE=?, SORT_IN_TEMPDB=?'
                            + N')'
                        else N'' end
                        + N';'
                      END /*End non-spatial and non-xml CASE */ 
                END
            END, '[Unknown Error]')
                AS create_tsql
        FROM #IndexSanity
        WHERE database_id = @DatabaseID;
                    
    END
END TRY
BEGIN CATCH
        RAISERROR (N'Failure populating temp tables.', 0,1) WITH NOWAIT;

        IF @dsql IS NOT NULL
        BEGIN
            SET @msg= 'Last @dsql: ' + @dsql;
            RAISERROR(@msg, 0, 1) WITH NOWAIT;
        END

        SELECT    @msg = @DatabaseName + N' database failed to process. ' + ERROR_MESSAGE(), @ErrorSeverity = ERROR_SEVERITY(), @ErrorState = ERROR_STATE();
        RAISERROR (@msg,@ErrorSeverity, @ErrorState )WITH NOWAIT;
        
        
        WHILE @@trancount > 0 
            ROLLBACK;

        RETURN;
END CATCH;
 FETCH NEXT FROM c1 INTO @DatabaseName
END
DEALLOCATE c1;

----------------------------------------
--STEP 2: DIAGNOSE THE PATIENT
--EVERY QUERY AFTER THIS GOES AGAINST TEMP TABLES ONLY.
----------------------------------------
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                BEGIN TRY
----------------------------------------
--If @TableName is specified, just return information for that table.
--The @Mode parameter doesn't matter if you're looking at a specific table.
----------------------------------------
IF @TableName IS NOT NULL
BEGIN
    RAISERROR(N'@TableName specified, giving detail only on that table.', 0,1) WITH NOWAIT;

    --We do a left join here in case this is a disabled NC.
    --In that case, it won't have any size info/pages allocated.
    WITH table_mode_cte AS (
        SELECT 
            s.db_schema_object_indexid, 
            s.key_column_names,
            s.index_definition, 
            ISNULL(s.secret_columns,N'') AS secret_columns,
            s.fill_factor,
            s.index_usage_summary, 
            sz.index_op_stats,
            ISNULL(sz.index_size_summary,'') /*disabled NCs will be null*/ AS index_size_summary,
            ISNULL(sz.index_lock_wait_summary,'') AS index_lock_wait_summary,
            s.is_referenced_by_foreign_key,
            (SELECT COUNT(*)
                FROM #ForeignKeys fk WHERE fk.parent_object_id=s.object_id
                AND PATINDEX (fk.parent_fk_columns, s.key_column_names)=1) AS FKs_covered_by_index,
            s.last_user_seek,
            s.last_user_scan,
            s.last_user_lookup,
            s.last_user_update,
            s.create_date,
            s.modify_date,
            ct.create_tsql,
            1 as display_order
        FROM #IndexSanity s
        LEFT JOIN #IndexSanitySize sz ON 
            s.index_sanity_id=sz.index_sanity_id
        LEFT JOIN #IndexCreateTsql ct ON 
            s.index_sanity_id=ct.index_sanity_id
        WHERE s.[object_id]=@ObjectID
        UNION ALL
        SELECT     N'Database ' + QUOTENAME(@DatabaseName) + N' as of ' + convert(nvarchar(16),getdate(),121) +             
                N' (sp_BlitzIndex(R) v4.0 - June 26, 2016)' ,   
                N'SQL Server First Responder Kit' ,   
                N'http://FirstResponderKit.org' ,
                N'From Your Community Volunteers',
                NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,
                0 as display_order
    )
    SELECT 
            db_schema_object_indexid AS [Details: db_schema.table.index(indexid)], 
            index_definition AS [Definition: [Property]] ColumnName {datatype maxbytes}], 
            secret_columns AS [Secret Columns],
            fill_factor AS [Fillfactor],
            index_usage_summary AS [Usage Stats], 
            index_op_stats as [Op Stats],
            index_size_summary AS [Size],
            index_lock_wait_summary AS [Lock Waits],
            is_referenced_by_foreign_key AS [Referenced by FK?],
            FKs_covered_by_index AS [FK Covered by Index?],
            last_user_seek AS [Last User Seek],
            last_user_scan AS [Last User Scan],
            last_user_lookup AS [Last User Lookup],
            last_user_update as [Last User Write],
            create_date AS [Created],
            modify_date AS [Last Modified],
            create_tsql AS [Create TSQL]
    FROM table_mode_cte
    ORDER BY display_order ASC, key_column_names ASC
    OPTION    ( RECOMPILE );                        

    IF (SELECT TOP 1 [object_id] FROM    #MissingIndexes mi) IS NOT NULL
    BEGIN  
        SELECT  N'Missing index.' AS Finding ,
                N'http://BrentOzar.com/go/Indexaphobia' AS URL ,
                mi.[statement] + 
                ' Est. Benefit: '
                    + CASE WHEN magic_benefit_number >= 922337203685477 THEN '>= 922,337,203,685,477'
                    ELSE REPLACE(CONVERT(NVARCHAR(256),CAST(CAST(
                                        (magic_benefit_number/@DaysUptime)
                                        AS BIGINT) AS money), 1), '.00', '')
                    END AS [Estimated Benefit],
                missing_index_details AS [Missing Index Request] ,
                index_estimated_impact AS [Estimated Impact],
                create_tsql AS [Create TSQL]
        FROM    #MissingIndexes mi
        WHERE   [object_id] = @ObjectID
                /* Minimum benefit threshold = 100k/day of uptime */
        AND (magic_benefit_number/@DaysUptime) >= 100000
        ORDER BY magic_benefit_number DESC
        OPTION    ( RECOMPILE );
    END       
    ELSE     
    SELECT 'No missing indexes.' AS finding;

    SELECT     
        column_name AS [Column Name],
        (SELECT COUNT(*)  
            FROM #IndexColumns c2 
            WHERE c2.column_name=c.column_name
            and c2.key_ordinal is not null)
        + CASE WHEN c.index_id = 1 and c.key_ordinal is not null THEN
            -1+ (SELECT COUNT(DISTINCT index_id)
            from #IndexColumns c3
            where c3.index_id not in (0,1))
            ELSE 0 END
                AS [Found In],
        system_type_name + 
            CASE max_length WHEN -1 THEN N' (max)' ELSE
                CASE  
                    WHEN system_type_name in (N'char',N'nchar',N'binary',N'varbinary') THEN N' (' + CAST(max_length as NVARCHAR(20)) + N')' 
                    WHEN system_type_name in (N'varchar',N'nvarchar') THEN N' (' + CAST(max_length/2 as NVARCHAR(20)) + N')' 
                    ELSE '' 
                END
            END
            AS [Type],
        CASE is_computed WHEN 1 THEN 'yes' ELSE '' END AS [Computed?],
        max_length AS [Length (max bytes)],
        [precision] AS [Prec],
        [scale] AS [Scale],
        CASE is_nullable WHEN 1 THEN 'yes' ELSE '' END AS [Nullable?],
        CASE is_identity WHEN 1 THEN 'yes' ELSE '' END AS [Identity?],
        CASE is_replicated WHEN 1 THEN 'yes' ELSE '' END AS [Replicated?],
        CASE is_sparse WHEN 1 THEN 'yes' ELSE '' END AS [Sparse?],
        CASE is_filestream WHEN 1 THEN 'yes' ELSE '' END AS [Filestream?],
        collation_name AS [Collation]
    FROM #IndexColumns AS c
    where index_id in (0,1);

    IF (SELECT TOP 1 parent_object_id FROM #ForeignKeys) IS NOT NULL
    BEGIN
        SELECT [database_name] + N':' + parent_object_name + N': ' + foreign_key_name AS [Foreign Key],
            parent_fk_columns AS [Foreign Key Columns],
            referenced_object_name AS [Referenced Table],
            referenced_fk_columns AS [Referenced Table Columns],
            is_disabled AS [Is Disabled?],
            is_not_trusted as [Not Trusted?],
            is_not_for_replication [Not for Replication?],
            [update_referential_action_desc] as [Cascading Updates?],
            [delete_referential_action_desc] as [Cascading Deletes?]
        FROM #ForeignKeys
        ORDER BY [Foreign Key]
        OPTION    ( RECOMPILE );
    END
    ELSE
    SELECT 'No foreign keys.' AS finding;
END 

--If @TableName is NOT specified...
--Act based on the @Mode and @Filter. (@Filter applies only when @Mode=0 "diagnose")
ELSE
BEGIN;
    IF @Mode IN (0, 4) /* DIAGNOSE*/
    BEGIN;
        RAISERROR(N'@Mode=0 or 4, we are diagnosing.', 0,1) WITH NOWAIT;

        ----------------------------------------
        --Multiple Index Personalities: Check_id 0-10
        ----------------------------------------
        BEGIN;

        --SELECT    [object_id], key_column_names, database_id
        --                   FROM        #IndexSanity
        --                   WHERE  index_type IN (1,2) /* Clustered, NC only*/
        --                        AND is_hypothetical = 0
        --                        AND is_disabled = 0
        --                   GROUP BY    [object_id], key_column_names, database_id
        --                   HAVING    COUNT(*) > 1


        RAISERROR('check_id 1: Duplicate keys', 0,1) WITH NOWAIT;
            WITH    duplicate_indexes
                      AS ( SELECT    [object_id], key_column_names, database_id
                           FROM        #IndexSanity
                           WHERE  index_type IN (1,2) /* Clustered, NC only*/
                                AND is_hypothetical = 0
                                AND is_disabled = 0
                           GROUP BY    [object_id], key_column_names, database_id
                           HAVING    COUNT(*) > 1)
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                        SELECT    1 AS check_id, 
                                ip.index_sanity_id,
                                50 as Priority,
                                'Multiple Index Personalities' AS findings_group,
                                'Duplicate keys' AS finding,
                                [database_name] AS [Database Name],
                                N'http://BrentOzar.com/go/duplicateindex' AS URL,
                                N'Index Name: ' + ip.index_name AS details,
                                ip.index_definition, 
                                ip.secret_columns, 
                                ip.index_usage_summary,
                                ips.index_size_summary
                        FROM    duplicate_indexes di
                                JOIN #IndexSanity ip ON di.[object_id] = ip.[object_id]
                                                         AND ip.database_id = di.database_id
                                                         AND di.key_column_names = ip.key_column_names
                                JOIN #IndexSanitySize ips ON ip.index_sanity_id = ips.index_sanity_id AND ip.database_id = ips.database_id
                        /* WHERE clause limits to only @ThresholdMB or larger duplicate indexes when getting all databases or using PainRelief mode */
                        WHERE ips.total_reserved_MB >= CASE WHEN (@GetAllDatabases = 1 OR @Mode = 0) THEN @ThresholdMB ELSE ips.total_reserved_MB END
                        ORDER BY ip.object_id, ip.key_column_names_with_sort_order    
                OPTION    ( RECOMPILE );

        RAISERROR('check_id 2: Keys w/ identical leading columns.', 0,1) WITH NOWAIT;
            WITH    borderline_duplicate_indexes
                      AS ( SELECT DISTINCT [object_id], first_key_column_name, key_column_names,
                                    COUNT([object_id]) OVER ( PARTITION BY [object_id], first_key_column_name ) AS number_dupes
                           FROM        #IndexSanity
                           WHERE index_type IN (1,2) /* Clustered, NC only*/
                            AND is_hypothetical=0
                            AND is_disabled=0)
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                        SELECT    2 AS check_id, 
                                ip.index_sanity_id,
                                60 AS Priority,
                                'Multiple Index Personalities' AS findings_group,
                                'Borderline duplicate keys' AS finding,
                                [database_name] AS [Database Name],
                                N'http://BrentOzar.com/go/duplicateindex' AS URL,
                                ip.db_schema_object_indexid AS details, 
                                ip.index_definition, 
                                ip.secret_columns,
                                ip.index_usage_summary,
                                ips.index_size_summary
                        FROM    #IndexSanity AS ip 
                        JOIN #IndexSanitySize ips ON ip.index_sanity_id = ips.index_sanity_id
                        WHERE EXISTS (
                            SELECT di.[object_id]
                            FROM borderline_duplicate_indexes AS di
                            WHERE di.[object_id] = ip.[object_id] AND
                                di.first_key_column_name = ip.first_key_column_name AND
                                di.key_column_names <> ip.key_column_names AND
                                di.number_dupes > 1    
                        )
                        /* WHERE clause skips near-duplicate indexes when getting all databases or using PainRelief mode */
                        AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
                                                
                        ORDER BY ip.[schema_name], ip.[object_name], ip.key_column_names, ip.include_column_names
            OPTION    ( RECOMPILE );

        END
        ----------------------------------------
        --Aggressive Indexes: Check_id 10-19
        ----------------------------------------
        BEGIN;

        RAISERROR(N'check_id 11: Total lock wait time > 5 minutes (row + page)', 0,1) WITH NOWAIT;
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                SELECT    11 AS check_id, 
                        i.index_sanity_id,
                        10 AS Priority,
                        N'Aggressive Indexes' AS findings_group,
                        N'Total lock wait time > 5 minutes (row + page)' AS finding, 
                        [database_name] AS [Database Name],
                        N'http://BrentOzar.com/go/AggressiveIndexes' AS URL,
                        i.db_schema_object_indexid + N': ' +
                            sz.index_lock_wait_summary AS details, 
                        i.index_definition,
                        i.secret_columns,
                        i.index_usage_summary,
                        sz.index_size_summary
                FROM    #IndexSanity AS i
                JOIN #IndexSanitySize AS sz ON i.index_sanity_id = sz.index_sanity_id
                WHERE    (total_row_lock_wait_in_ms + total_page_lock_wait_in_ms) > 300000
                OPTION    ( RECOMPILE );
        END

        ---------------------------------------- 
        --Index Hoarder: Check_id 20-29
        ----------------------------------------
        BEGIN
            RAISERROR(N'check_id 20: >=7 NC indexes on any given table. Yes, 7 is an arbitrary number.', 0,1) WITH NOWAIT;
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                        SELECT    20 AS check_id, 
                                MAX(i.index_sanity_id) AS index_sanity_id, 
                                100 AS Priority,
                                'Index Hoarder' AS findings_group,
                                'Many NC indexes on a single table' AS finding,
                                [database_name] AS [Database Name],
                                N'http://BrentOzar.com/go/IndexHoarder' AS URL,
                                CAST (COUNT(*) AS NVARCHAR(30)) + ' NC indexes on ' + i.db_schema_object_name AS details,
                                i.db_schema_object_name + ' (' + CAST (COUNT(*) AS NVARCHAR(30)) + ' indexes)' AS index_definition,
                                '' AS secret_columns,
                                REPLACE(CONVERT(NVARCHAR(30),CAST(SUM(total_reads) AS money), 1), N'.00', N'') + N' reads (ALL); '
                                    + REPLACE(CONVERT(NVARCHAR(30),CAST(SUM(user_updates) AS money), 1), N'.00', N'') + N' writes (ALL); ',
                                REPLACE(CONVERT(NVARCHAR(30),CAST(MAX(total_rows) AS money), 1), N'.00', N'') + N' rows (MAX)'
                                    + CASE WHEN SUM(total_reserved_MB) > 1024 THEN 
                                        N'; ' + CAST(CAST(SUM(total_reserved_MB)/1024. AS NUMERIC(29,1)) AS NVARCHAR(30)) + 'GB (ALL)'
                                    WHEN SUM(total_reserved_MB) > 0 THEN
                                        N'; ' + CAST(CAST(SUM(total_reserved_MB) AS NUMERIC(29,1)) AS NVARCHAR(30)) + 'MB (ALL)'
                                    ELSE ''
                                    END AS index_size_summary
                        FROM    #IndexSanity i
                        JOIN #IndexSanitySize ip ON i.index_sanity_id = ip.index_sanity_id
                        WHERE    index_id NOT IN ( 0, 1 )
                        AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
                        GROUP BY db_schema_object_name, [i].[database_name]
                        HAVING    COUNT(*) >= 7
                        ORDER BY i.db_schema_object_name DESC  OPTION    ( RECOMPILE );

            if @Filter = 1 /*@Filter=1 is "ignore unusued" */
            BEGIN
                RAISERROR(N'Skipping checks on unused indexes (21 and 22) because @Filter=1', 0,1) WITH NOWAIT;
            END
            ELSE /*Otherwise, go ahead and do the checks*/
            BEGIN
                RAISERROR(N'check_id 21: >=5 percent of indexes are unused. Yes, 5 is an arbitrary number.', 0,1) WITH NOWAIT;
                    DECLARE @percent_NC_indexes_unused NUMERIC(29,1);
                    DECLARE @NC_indexes_unused_reserved_MB NUMERIC(29,1);

                    SELECT    @percent_NC_indexes_unused =( 100.00 * SUM(CASE    WHEN total_reads = 0 THEN 1
                                                ELSE 0
                                           END) ) / COUNT(*) ,
                            @NC_indexes_unused_reserved_MB = SUM(CASE WHEN total_reads = 0 THEN sz.total_reserved_MB
                                     ELSE 0
                                END) 
                    FROM    #IndexSanity i
                    JOIN    #IndexSanitySize sz ON i.index_sanity_id = sz.index_sanity_id
                    WHERE    index_id NOT IN ( 0, 1 ) 
                            and i.is_unique = 0
                    OPTION    ( RECOMPILE );

                IF @percent_NC_indexes_unused >= 5 
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                            SELECT    21 AS check_id, 
                                    MAX(i.index_sanity_id) AS index_sanity_id, 
                                    150 AS Priority,
                                    N'Index Hoarder' AS findings_group,
                                    N'More than 5 percent NC indexes are unused' AS finding,
                                    [database_name] AS [Database Name],
                                    N'http://BrentOzar.com/go/IndexHoarder' AS URL,
                                    CAST (@percent_NC_indexes_unused AS NVARCHAR(30)) + N' percent NC indexes (' + CAST(COUNT(*) AS NVARCHAR(10)) + N') unused. ' +
                                    N'These take up ' + CAST (@NC_indexes_unused_reserved_MB AS NVARCHAR(30)) + N'MB of space.' AS details,
                                    i.database_name + ' (' + CAST (COUNT(*) AS NVARCHAR(30)) + N' indexes)' AS index_definition,
                                    '' AS secret_columns, 
                                    CAST(SUM(total_reads) AS NVARCHAR(256)) + N' reads (ALL); '
                                        + CAST(SUM([user_updates]) AS NVARCHAR(256)) + N' writes (ALL)' AS index_usage_summary,
                                
                                    REPLACE(CONVERT(NVARCHAR(30),CAST(MAX([total_rows]) AS money), 1), '.00', '') + N' rows (MAX)'
                                        + CASE WHEN SUM(total_reserved_MB) > 1024 THEN 
                                            N'; ' + CAST(CAST(SUM(total_reserved_MB)/1024. AS NUMERIC(29,1)) AS NVARCHAR(30)) + 'GB (ALL)'
                                        WHEN SUM(total_reserved_MB) > 0 THEN
                                            N'; ' + CAST(CAST(SUM(total_reserved_MB) AS NUMERIC(29,1)) AS NVARCHAR(30)) + 'MB (ALL)'
                                        ELSE ''
                                        END AS index_size_summary
                            FROM    #IndexSanity i
                            JOIN    #IndexSanitySize sz ON i.index_sanity_id = sz.index_sanity_id
                            WHERE    index_id NOT IN ( 0, 1 )
                                    AND i.is_unique = 0
                                    AND total_reads = 0
                                    AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
                            GROUP BY i.database_name 
                    OPTION    ( RECOMPILE );

                RAISERROR(N'check_id 22: NC indexes with 0 reads. (Borderline)', 0,1) WITH NOWAIT;
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                        SELECT    22 AS check_id, 
                                i.index_sanity_id,
                                150 AS Priority,
                                N'Index Hoarder' AS findings_group,
                                N'Unused NC index' AS finding, 
                                [database_name] AS [Database Name],
                                N'http://BrentOzar.com/go/IndexHoarder' AS URL,
                                N'0 reads: ' + i.db_schema_object_indexid AS details, 
                                i.index_definition, 
                                i.secret_columns, 
                                i.index_usage_summary,
                                sz.index_size_summary
                        FROM    #IndexSanity AS i
                        JOIN    #IndexSanitySize AS sz ON i.index_sanity_id = sz.index_sanity_id
                        WHERE    i.total_reads=0
                                AND i.index_id NOT IN (0,1) /*NCs only*/
                                and i.is_unique = 0
                                AND sz.total_reserved_MB >= CASE WHEN (@GetAllDatabases = 1 OR @Mode = 0) THEN @ThresholdMB ELSE sz.total_reserved_MB END
                        ORDER BY i.db_schema_object_indexid
                        OPTION    ( RECOMPILE );
            END /*end checks only run when @Filter <> 1*/

            RAISERROR(N'check_id 23: Indexes with 7 or more columns. (Borderline)', 0,1) WITH NOWAIT;
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                    SELECT    23 AS check_id, 
                            i.index_sanity_id,
                            150 AS Priority, 
                            N'Index Hoarder' AS findings_group,
                            N'Borderline: Wide indexes (7 or more columns)' AS finding, 
                            [database_name] AS [Database Name],
                            N'http://BrentOzar.com/go/IndexHoarder' AS URL,
                            CAST(count_key_columns + count_included_columns AS NVARCHAR(10)) + ' columns on '
                            + i.db_schema_object_indexid AS details, i.index_definition, 
                            i.secret_columns, 
                            i.index_usage_summary,
                            sz.index_size_summary
                    FROM    #IndexSanity AS i
                    JOIN    #IndexSanitySize AS sz ON i.index_sanity_id = sz.index_sanity_id
                    WHERE    ( count_key_columns + count_included_columns ) >= 7
                            AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
                    OPTION    ( RECOMPILE );

            RAISERROR(N'check_id 24: Wide clustered indexes (> 3 columns or > 16 bytes).', 0,1) WITH NOWAIT;
                WITH count_columns AS (
                            SELECT [object_id],
                                SUM(CASE max_length when -1 THEN 0 ELSE max_length END) AS sum_max_length
                            FROM #IndexColumns ic
                            WHERE index_id in (1,0) /*Heap or clustered only*/
                            and key_ordinal > 0
                            GROUP BY object_id
                            )
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                        SELECT    24 AS check_id, 
                                i.index_sanity_id, 
                                150 AS Priority,
                                N'Index Hoarder' AS findings_group,
                                N'Wide clustered index (> 3 columns OR > 16 bytes)' AS finding,
                                [database_name] AS [Database Name],
                                N'http://BrentOzar.com/go/IndexHoarder' AS URL,
                                CAST (i.count_key_columns AS NVARCHAR(10)) + N' columns with potential size of '
                                    + CAST(cc.sum_max_length AS NVARCHAR(10))
                                    + N' bytes in clustered index:' + i.db_schema_object_name 
                                    + N'. ' + 
                                        (SELECT CAST(COUNT(*) AS NVARCHAR(23)) FROM #IndexSanity i2 
                                        WHERE i2.[object_id]=i.[object_id] AND i2.index_id <> 1
                                        AND i2.is_disabled=0 AND i2.is_hypothetical=0)
                                        + N' NC indexes on the table.'
                                    AS details,
                                i.index_definition,
                                secret_columns, 
                                i.index_usage_summary,
                                ip.index_size_summary
                        FROM    #IndexSanity i
                        JOIN    #IndexSanitySize ip ON i.index_sanity_id = ip.index_sanity_id
                        JOIN    count_columns AS cc ON i.[object_id]=cc.[object_id]    
                        WHERE    index_id = 1 /* clustered only */
                                AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
                                AND 
                                    (count_key_columns > 3 /*More than three key columns.*/
                                    OR cc.sum_max_length > 16 /*More than 16 bytes in key */)
                        ORDER BY i.db_schema_object_name DESC OPTION    ( RECOMPILE );

            RAISERROR(N'check_id 25: Addicted to nullable columns.', 0,1) WITH NOWAIT;
                WITH count_columns AS (
                            SELECT [object_id],
                                SUM(CASE is_nullable WHEN 1 THEN 0 ELSE 1 END) as non_nullable_columns,
                                COUNT(*) as total_columns
                            FROM #IndexColumns ic
                            WHERE index_id in (1,0) /*Heap or clustered only*/
                            GROUP BY object_id
                            )
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                        SELECT    25 AS check_id, 
                                i.index_sanity_id, 
                                200 AS Priority,
                                N'Index Hoarder' AS findings_group,
                                N'Addicted to nulls' AS finding,
                                [database_name] AS [Database Name],
                                N'http://BrentOzar.com/go/IndexHoarder' AS URL,
                                i.db_schema_object_name 
                                    + N' allows null in ' + CAST((total_columns-non_nullable_columns) as NVARCHAR(10))
                                    + N' of ' + CAST(total_columns as NVARCHAR(10))
                                    + N' columns.' AS details,
                                i.index_definition,
                                secret_columns, 
                                ISNULL(i.index_usage_summary,''),
                                ISNULL(ip.index_size_summary,'')
                        FROM    #IndexSanity i
                        JOIN    #IndexSanitySize ip ON i.index_sanity_id = ip.index_sanity_id
                        JOIN    count_columns AS cc ON i.[object_id]=cc.[object_id]
                        WHERE    i.index_id in (1,0)
                        AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
                            AND cc.non_nullable_columns < 2
                            and cc.total_columns > 3
                        ORDER BY i.db_schema_object_name DESC OPTION    ( RECOMPILE );

            RAISERROR(N'check_id 26: Wide tables (35+ cols or > 2000 non-LOB bytes).', 0,1) WITH NOWAIT;
                WITH count_columns AS (
                            SELECT [object_id],
                                SUM(CASE max_length when -1 THEN 1 ELSE 0 END) AS count_lob_columns,
                                SUM(CASE max_length when -1 THEN 0 ELSE max_length END) AS sum_max_length,
                                COUNT(*) as total_columns
                            FROM #IndexColumns ic
                            WHERE index_id in (1,0) /*Heap or clustered only*/
                            GROUP BY object_id
                            )
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                        SELECT    26 AS check_id, 
                                i.index_sanity_id, 
                                150 AS Priority,
                                N'Index Hoarder' AS findings_group,
                                N'Wide tables: 35+ cols or > 2000 non-LOB bytes' AS finding,
                                [database_name] AS [Database Name],
                                N'http://BrentOzar.com/go/IndexHoarder' AS URL,
                                i.db_schema_object_name 
                                    + N' has ' + CAST((total_columns) as NVARCHAR(10))
                                    + N' total columns with a max possible width of ' + CAST(sum_max_length as NVARCHAR(10))
                                    + N' bytes.' +
                                    CASE WHEN count_lob_columns > 0 THEN CAST((count_lob_columns) as NVARCHAR(10))
                                        + ' columns are LOB types.' ELSE ''
                                    END
                                        AS details,
                                i.index_definition,
                                secret_columns, 
                                ISNULL(i.index_usage_summary,''),
                                ISNULL(ip.index_size_summary,'')
                        FROM    #IndexSanity i
                        JOIN    #IndexSanitySize ip ON i.index_sanity_id = ip.index_sanity_id
                        JOIN    count_columns AS cc ON i.[object_id]=cc.[object_id]
                        WHERE    i.index_id in (1,0)
                        AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
                            and 
                            (cc.total_columns >= 35 OR
                            cc.sum_max_length >= 2000)
                        ORDER BY i.db_schema_object_name DESC OPTION    ( RECOMPILE );
                    
            RAISERROR(N'check_id 27: Addicted to strings.', 0,1) WITH NOWAIT;
                WITH count_columns AS (
                            SELECT [object_id],
                                SUM(CASE WHEN system_type_name in ('varchar','nvarchar','char') or max_length=-1 THEN 1 ELSE 0 END) as string_or_LOB_columns,
                                COUNT(*) as total_columns
                            FROM #IndexColumns ic
                            WHERE index_id in (1,0) /*Heap or clustered only*/
                            GROUP BY object_id
                            )
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                        SELECT    27 AS check_id, 
                                i.index_sanity_id, 
                                200 AS Priority,
                                N'Index Hoarder' AS findings_group,
                                N'Addicted to strings' AS finding,
                                [database_name] AS [Database Name],
                                N'http://BrentOzar.com/go/IndexHoarder' AS URL,
                                i.db_schema_object_name 
                                    + N' uses string or LOB types for ' + CAST((string_or_LOB_columns) as NVARCHAR(10))
                                    + N' of ' + CAST(total_columns as NVARCHAR(10))
                                    + N' columns. Check if data types are valid.' AS details,
                                i.index_definition,
                                secret_columns, 
                                ISNULL(i.index_usage_summary,''),
                                ISNULL(ip.index_size_summary,'')
                        FROM    #IndexSanity i
                        JOIN    #IndexSanitySize ip ON i.index_sanity_id = ip.index_sanity_id
                        JOIN    count_columns AS cc ON i.[object_id]=cc.[object_id]
                        CROSS APPLY (SELECT cc.total_columns - string_or_LOB_columns AS non_string_or_lob_columns) AS calc1
                        WHERE    i.index_id in (1,0)
                        AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
                            AND calc1.non_string_or_lob_columns <= 1
                            AND cc.total_columns > 3
                        ORDER BY i.db_schema_object_name DESC OPTION    ( RECOMPILE );

            RAISERROR(N'check_id 28: Non-unique clustered index.', 0,1) WITH NOWAIT;
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                        SELECT    28 AS check_id, 
                                i.index_sanity_id, 
                                100 AS Priority,
                                N'Index Hoarder' AS findings_group,
                                N'Non-Unique clustered index' AS finding,
                                [database_name] AS [Database Name],
                                N'http://BrentOzar.com/go/IndexHoarder' AS URL,
                                N'Uniquifiers will be required! Clustered index: ' + i.db_schema_object_name 
                                    + N' and all NC indexes. ' + 
                                        (SELECT CAST(COUNT(*) AS NVARCHAR(23)) FROM #IndexSanity i2 
                                        WHERE i2.[object_id]=i.[object_id] AND i2.index_id <> 1
                                        AND i2.is_disabled=0 AND i2.is_hypothetical=0)
                                        + N' NC indexes on the table.'
                                    AS details,
                                i.index_definition,
                                secret_columns, 
                                i.index_usage_summary,
                                ip.index_size_summary
                        FROM    #IndexSanity i
                        JOIN    #IndexSanitySize ip ON i.index_sanity_id = ip.index_sanity_id
                        WHERE    index_id = 1 /* clustered only */
                        AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
                                AND is_unique=0 /* not unique */
                                AND is_CX_columnstore=0 /* not a clustered columnstore-- no unique option on those */
                        ORDER BY i.db_schema_object_name DESC OPTION    ( RECOMPILE )



        END
         ----------------------------------------
        --Feature-Phobic Indexes: Check_id 30-39
        ---------------------------------------- 
        BEGIN
            RAISERROR(N'check_id 30: No indexes with includes', 0,1) WITH NOWAIT;

            DECLARE    @number_indexes_with_includes INT;
            DECLARE    @percent_indexes_with_includes NUMERIC(10, 1);

            SELECT    @number_indexes_with_includes = SUM(CASE WHEN count_included_columns > 0 THEN 1 ELSE 0    END),
                    @percent_indexes_with_includes = 100.* 
                        SUM(CASE WHEN count_included_columns > 0 THEN 1 ELSE 0 END) / ( 1.0 * COUNT(*) )
            FROM    #IndexSanity;

            IF @number_indexes_with_includes = 0 AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                        SELECT    30 AS check_id, 
                                NULL AS index_sanity_id, 
                                250 AS Priority,
                                N'Feature-Phobic Indexes' AS findings_group,
                                N'No indexes use includes' AS finding, 'http://BrentOzar.com/go/IndexFeatures' AS URL,
                                N'No indexes use includes' AS details,
                                @DatabaseName + N' (Entire database)' AS index_definition, 
                                N'' AS secret_columns, 
                                N'N/A' AS index_usage_summary, 
                                N'N/A' AS index_size_summary OPTION    ( RECOMPILE );

            RAISERROR(N'check_id 31: < 3 percent of indexes have includes', 0,1) WITH NOWAIT;
            IF @percent_indexes_with_includes <= 3 AND @number_indexes_with_includes > 0 AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                        SELECT    31 AS check_id,
                                NULL AS index_sanity_id, 
                                150 AS Priority,
                                N'Feature-Phobic Indexes' AS findings_group,
                                N'Borderline: Includes are used in < 3% of indexes' AS findings,
                                @DatabaseName AS [Database Name],
                                N'http://BrentOzar.com/go/IndexFeatures' AS URL,
                                N'Only ' + CAST(@percent_indexes_with_includes AS NVARCHAR(10)) + '% of indexes have includes' AS details, 
                                N'Entire database' AS index_definition, 
                                N'' AS secret_columns,
                                N'N/A' AS index_usage_summary, 
                                N'N/A' AS index_size_summary OPTION    ( RECOMPILE );

            RAISERROR(N'check_id 32: filtered indexes and indexed views', 0,1) WITH NOWAIT;
            DECLARE @count_filtered_indexes INT;
            DECLARE @count_indexed_views INT;

                SELECT    @count_filtered_indexes=COUNT(*)
                FROM    #IndexSanity
                WHERE    filter_definition <> '' OPTION    ( RECOMPILE );

                SELECT    @count_indexed_views=COUNT(*)
                FROM    #IndexSanity AS i
                        JOIN #IndexSanitySize AS sz ON i.index_sanity_id = sz.index_sanity_id
                WHERE    is_indexed_view = 1 OPTION    ( RECOMPILE );

            IF @count_filtered_indexes = 0 AND @count_indexed_views=0 AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                        SELECT    32 AS check_id, 
                                NULL AS index_sanity_id,
                                250 AS Priority,
                                N'Feature-Phobic Indexes' AS findings_group,
                                N'Borderline: No filtered indexes or indexed views exist' AS finding, 
                                @DatabaseName AS [Database Name],
                                N'http://BrentOzar.com/go/IndexFeatures' AS URL,
                                N'These are NOT always needed-- but do you know when you would use them?' AS details,
                                @DatabaseName + N' (Entire database)' AS index_definition, 
                                N'' AS secret_columns,
                                N'N/A' AS index_usage_summary, 
                                N'N/A' AS index_size_summary OPTION    ( RECOMPILE );
        END;

        RAISERROR(N'check_id 33: Potential filtered indexes based on column names.', 0,1) WITH NOWAIT;

                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
        SELECT    33 AS check_id, 
                i.index_sanity_id AS index_sanity_id,
                250 AS Priority,
                N'Feature-Phobic Indexes' AS findings_group,
                N'Potential filtered index (based on column name)' AS finding, 
                [database_name] AS [Database Name],
                N'http://BrentOzar.com/go/IndexFeatures' AS URL,
                N'A column name in this index suggests it might be a candidate for filtering (is%, %archive%, %active%, %flag%)' AS details,
                i.index_definition, 
                i.secret_columns,
                i.index_usage_summary, 
                sz.index_size_summary
        FROM #IndexColumns ic 
        join #IndexSanity i on 
            ic.[object_id]=i.[object_id] and
            ic.[index_id]=i.[index_id] and
            i.[index_id] > 1 /* non-clustered index */
        JOIN    #IndexSanitySize AS sz ON i.index_sanity_id = sz.index_sanity_id
        WHERE (column_name like 'is%'
            or column_name like '%archive%'
            or column_name like '%active%'
            or column_name like '%flag%')
            AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
        OPTION    ( RECOMPILE );
        
         ----------------------------------------
        --Self Loathing Indexes : Check_id 40-49
        ----------------------------------------
        BEGIN
        
            RAISERROR(N'check_id 40: Fillfactor in nonclustered 80 percent or less', 0,1) WITH NOWAIT;
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                    SELECT    40 AS check_id, 
                            i.index_sanity_id,
                            100 AS Priority,
                            N'Self Loathing Indexes' AS findings_group,
                            N'Low Fill Factor: nonclustered index' AS finding, 
                            [database_name] AS [Database Name],
                            N'http://BrentOzar.com/go/SelfLoathing' AS URL,
                            CAST(fill_factor AS NVARCHAR(10)) + N'% fill factor on ' + db_schema_object_indexid + N'. '+
                                CASE WHEN (last_user_update is null OR user_updates < 1)
                                THEN N'No writes have been made.'
                                ELSE
                                    N'Last write was ' +  CONVERT(NVARCHAR(16),last_user_update,121) + N' and ' + 
                                    CAST(user_updates as NVARCHAR(25)) + N' updates have been made.'
                                END
                                AS details, 
                            i.index_definition,
                            i.secret_columns,
                            i.index_usage_summary,
                            sz.index_size_summary
                    FROM    #IndexSanity AS i
                    JOIN    #IndexSanitySize AS sz ON i.index_sanity_id = sz.index_sanity_id
                    WHERE    index_id > 1
                    AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
                    and    fill_factor BETWEEN 1 AND 80 OPTION    ( RECOMPILE );

            RAISERROR(N'check_id 40: Fillfactor in clustered 90 percent or less', 0,1) WITH NOWAIT;
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                    SELECT    40 AS check_id, 
                            i.index_sanity_id,
                            100 AS Priority,
                            N'Self Loathing Indexes' AS findings_group,
                            N'Low Fill Factor: clustered index' AS finding, 
                            [database_name] AS [Database Name],
                            N'http://BrentOzar.com/go/SelfLoathing' AS URL,
                            N'Fill factor on ' + db_schema_object_indexid + N' is ' + CAST(fill_factor AS NVARCHAR(10)) + N'%. '+
                                CASE WHEN (last_user_update is null OR user_updates < 1)
                                THEN N'No writes have been made.'
                                ELSE
                                    N'Last write was ' +  CONVERT(NVARCHAR(16),last_user_update,121) + N' and ' + 
                                    CAST(user_updates as NVARCHAR(25)) + N' updates have been made.'
                                END
                                AS details, 
                            i.index_definition,
                            i.secret_columns,
                            i.index_usage_summary,
                            sz.index_size_summary
                    FROM    #IndexSanity AS i
                    JOIN #IndexSanitySize AS sz ON i.index_sanity_id = sz.index_sanity_id
                    WHERE    index_id = 1
                    AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
                    and fill_factor BETWEEN 1 AND 90 OPTION    ( RECOMPILE );


            RAISERROR(N'check_id 41: Hypothetical indexes ', 0,1) WITH NOWAIT;
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                    SELECT    41 AS check_id, 
                            i.index_sanity_id,
                            150 AS Priority,
                            N'Self Loathing Indexes' AS findings_group,
                            N'Hypothetical Index' AS finding,
                            [database_name] AS [Database Name],
                            N'http://BrentOzar.com/go/SelfLoathing' AS URL,
                            N'Hypothetical Index: ' + db_schema_object_indexid AS details, 
                            i.index_definition,
                            i.secret_columns,
                            N'' AS index_usage_summary, 
                            N'' AS index_size_summary
                    FROM    #IndexSanity AS i
                    WHERE    is_hypothetical = 1 
                    AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
                    OPTION    ( RECOMPILE );


            RAISERROR(N'check_id 42: Disabled indexes', 0,1) WITH NOWAIT;
            --Note: disabled NC indexes will have O rows in #IndexSanitySize!
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                    SELECT    42 AS check_id, 
                            index_sanity_id,
                            150 AS Priority,
                            N'Self Loathing Indexes' AS findings_group,
                            N'Disabled Index' AS finding, 
                            [database_name] AS [Database Name],
                            N'http://BrentOzar.com/go/SelfLoathing' AS URL,
                            N'Disabled Index:' + db_schema_object_indexid AS details, 
                            i.index_definition,
                            i.secret_columns,
                            i.index_usage_summary,
                            'DISABLED' AS index_size_summary
                    FROM    #IndexSanity AS i
                    WHERE    is_disabled = 1
                    AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
                    OPTION    ( RECOMPILE );

            RAISERROR(N'check_id 43: Heaps with forwarded records or deletes', 0,1) WITH NOWAIT;
            WITH    heaps_cte
                      AS ( SELECT    [object_id], 
                                    SUM(forwarded_fetch_count) AS forwarded_fetch_count,
                                    SUM(leaf_delete_count) AS leaf_delete_count
                           FROM        #IndexPartitionSanity
                           GROUP BY    [object_id]
                           HAVING    SUM(forwarded_fetch_count) > 0
                                    OR SUM(leaf_delete_count) > 0)
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                        SELECT    43 AS check_id, 
                                i.index_sanity_id,
                                100 AS Priority,
                                N'Self Loathing Indexes' AS findings_group,
                                N'Heaps with forwarded records or deletes' AS finding, 
                                [database_name] AS [Database Name],
                                N'http://BrentOzar.com/go/SelfLoathing' AS URL,
                                CAST(h.forwarded_fetch_count AS NVARCHAR(256)) + ' forwarded fetches, '
                                + CAST(h.leaf_delete_count AS NVARCHAR(256)) + ' deletes against heap:'
                                + db_schema_object_indexid AS details, 
                                i.index_definition, 
                                i.secret_columns,
                                i.index_usage_summary,
                                sz.index_size_summary
                        FROM    #IndexSanity i
                        JOIN heaps_cte h ON i.[object_id] = h.[object_id]
                        JOIN #IndexSanitySize sz ON i.index_sanity_id = sz.index_sanity_id
                        WHERE    i.index_id = 0 
                        AND sz.total_reserved_MB >= CASE WHEN NOT (@GetAllDatabases = 1 OR @Mode = 0) THEN @ThresholdMB ELSE sz.total_reserved_MB END
                OPTION    ( RECOMPILE );

            RAISERROR(N'check_id 44: Heaps with reads or writes.', 0,1) WITH NOWAIT;
            WITH    heaps_cte
                      AS ( SELECT    [object_id], SUM(forwarded_fetch_count) AS forwarded_fetch_count,
                                    SUM(leaf_delete_count) AS leaf_delete_count
                           FROM        #IndexPartitionSanity
                           GROUP BY    [object_id]
                           HAVING    SUM(forwarded_fetch_count) > 0
                                    OR SUM(leaf_delete_count) > 0)
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                        SELECT    44 AS check_id, 
                                i.index_sanity_id,
                                100 AS Priority,
                                N'Self Loathing Indexes' AS findings_group,
                                N'Active heap' AS finding, 
                                [database_name] AS [Database Name],
                                N'http://BrentOzar.com/go/SelfLoathing' AS URL,
                                N'Should this table be a heap? ' + db_schema_object_indexid AS details, 
                                i.index_definition, 
                                'N/A' AS secret_columns,
                                i.index_usage_summary,
                                sz.index_size_summary
                        FROM    #IndexSanity i
                        LEFT JOIN heaps_cte h ON i.[object_id] = h.[object_id]
                        JOIN #IndexSanitySize sz ON i.index_sanity_id = sz.index_sanity_id
                        WHERE    i.index_id = 0 
                                AND 
                                    (i.total_reads > 0 OR i.user_updates > 0)
                                AND h.[object_id] IS NULL /*don't duplicate the prior check.*/
                                AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
                OPTION    ( RECOMPILE );


            END;
        ----------------------------------------
        --Indexaphobia
        --Missing indexes with value >= 5 million: : Check_id 50-59
        ----------------------------------------
        BEGIN
            RAISERROR(N'check_id 50: Indexaphobia.', 0,1) WITH NOWAIT;
            WITH    index_size_cte
                      AS ( SELECT    i.[object_id], 
                                    MAX(i.index_sanity_id) AS index_sanity_id,
                                ISNULL (
                                    CAST(SUM(CASE WHEN index_id NOT IN (0,1) THEN 1 ELSE 0 END)
                                         AS NVARCHAR(30))+ N' NC indexes exist (' + 
                                    CASE WHEN SUM(CASE WHEN index_id NOT IN (0,1) THEN sz.total_reserved_MB ELSE 0 END) > 1024
                                        THEN CAST(CAST(SUM(CASE WHEN index_id NOT IN (0,1) THEN sz.total_reserved_MB ELSE 0 END )/1024. 
                                            AS NUMERIC(29,1)) AS NVARCHAR(30)) + N'GB); ' 
                                        ELSE CAST(SUM(CASE WHEN index_id NOT IN (0,1) THEN sz.total_reserved_MB ELSE 0 END) 
                                            AS NVARCHAR(30)) + N'MB); '
                                    END + 
                                        CASE WHEN MAX(sz.[total_rows]) >= 922337203685477 THEN '>= 922,337,203,685,477'
                                        ELSE REPLACE(CONVERT(NVARCHAR(30),CAST(MAX(sz.[total_rows]) AS money), 1), '.00', '') 
                                        END +
                                    + N' Estimated Rows;' 
                                ,N'') AS index_size_summary
                            FROM    #IndexSanity AS i
                            LEFT    JOIN #IndexSanitySize AS sz ON i.index_sanity_id = sz.index_sanity_id
                           GROUP BY    i.[object_id])
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               index_usage_summary, index_size_summary, create_tsql, more_info )
                        
                        SELECT check_id, t.index_sanity_id, t.check_id, t.findings_group, t.finding, t.[Database Name], t.URL, t.details, t.[definition],
                                index_estimated_impact, t.index_size_summary, create_tsql, more_info
                        FROM
                        (
                            SELECT  ROW_NUMBER() OVER (ORDER BY magic_benefit_number DESC) AS rownum,
                                50 AS check_id, 
                                sz.index_sanity_id,
                                10 AS Priority,
                                N'Indexaphobia' AS findings_group,
                                N'High value missing index' AS finding, 
                                [database_name] AS [Database Name],
                                N'http://BrentOzar.com/go/Indexaphobia' AS URL,
                                mi.[statement] + 
                                N' Est. benefit: ' + 
                                    CASE WHEN magic_benefit_number >= 922337203685477 THEN '>= 922,337,203,685,477'
                                    ELSE REPLACE(CONVERT(NVARCHAR(256),CAST(CAST(
                                    (magic_benefit_number/@DaysUptime)
                                     AS BIGINT) AS money), 1), '.00', '') 
                                    END AS details,
                                missing_index_details AS [definition],
                                index_estimated_impact,
                                sz.index_size_summary,
                                mi.create_tsql,
                                mi.more_info,
                                magic_benefit_number
                        FROM    #MissingIndexes mi
                                LEFT JOIN index_size_cte sz ON mi.[object_id] = sz.object_id
                                        /* Minimum benefit threshold = 100k/day of uptime */
                        WHERE (magic_benefit_number/@DaysUptime) >= 100000
                        ) AS t
                        WHERE t.rownum <= CASE WHEN (@GetAllDatabases = 1 OR @Mode = 0) THEN 20 ELSE t.rownum END
                        ORDER BY magic_benefit_number DESC


    END
         ----------------------------------------
        --Abnormal Psychology : Check_id 60-79
        ----------------------------------------
    BEGIN
            RAISERROR(N'check_id 60: XML indexes', 0,1) WITH NOWAIT;
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                    SELECT    60 AS check_id, 
                            i.index_sanity_id,
                            150 AS Priority,
                            N'Abnormal Psychology' AS findings_group,
                            N'XML Indexes' AS finding, 
                            [database_name] AS [Database Name],
                            N'http://BrentOzar.com/go/AbnormalPsychology' AS URL,
                            i.db_schema_object_indexid AS details, 
                            i.index_definition,
                            i.secret_columns,
                            N'' AS index_usage_summary,
                            ISNULL(sz.index_size_summary,'') AS index_size_summary
                    FROM    #IndexSanity AS i
                    JOIN #IndexSanitySize sz ON i.index_sanity_id = sz.index_sanity_id
                    WHERE i.is_XML = 1 OPTION    ( RECOMPILE );

            RAISERROR(N'check_id 61: Columnstore indexes', 0,1) WITH NOWAIT;
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                    SELECT    61 AS check_id, 
                            i.index_sanity_id,
                            150 AS Priority,
                            N'Abnormal Psychology' AS findings_group,
                            CASE WHEN i.is_NC_columnstore=1
                                THEN N'NC Columnstore Index' 
                                ELSE N'Clustered Columnstore Index' 
                                END AS finding, 
                            [database_name] AS [Database Name],
                            N'http://BrentOzar.com/go/AbnormalPsychology' AS URL,
                            i.db_schema_object_indexid AS details, 
                            i.index_definition,
                            i.secret_columns,
                            i.index_usage_summary,
                            ISNULL(sz.index_size_summary,'') AS index_size_summary
                    FROM    #IndexSanity AS i
                    JOIN #IndexSanitySize sz ON i.index_sanity_id = sz.index_sanity_id
                    WHERE i.is_NC_columnstore = 1 OR i.is_CX_columnstore=1
                    OPTION    ( RECOMPILE );


            RAISERROR(N'check_id 62: Spatial indexes', 0,1) WITH NOWAIT;
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                    SELECT    62 AS check_id, 
                            i.index_sanity_id,
                            150 AS Priority,
                            N'Abnormal Psychology' AS findings_group,
                            N'Spatial indexes' AS finding,
                            [database_name] AS [Database Name], 
                            N'http://BrentOzar.com/go/AbnormalPsychology' AS URL,
                            i.db_schema_object_indexid AS details, 
                            i.index_definition,
                            i.secret_columns,
                            i.index_usage_summary,
                            ISNULL(sz.index_size_summary,'') AS index_size_summary
                    FROM    #IndexSanity AS i
                    JOIN #IndexSanitySize sz ON i.index_sanity_id = sz.index_sanity_id
                    WHERE i.is_spatial = 1 OPTION    ( RECOMPILE );

            RAISERROR(N'check_id 63: Compressed indexes', 0,1) WITH NOWAIT;
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                    SELECT    63 AS check_id, 
                            i.index_sanity_id,
                            150 AS Priority,
                            N'Abnormal Psychology' AS findings_group,
                            N'Compressed indexes' AS finding,
                            [database_name] AS [Database Name], 
                            N'http://BrentOzar.com/go/AbnormalPsychology' AS URL,
                            i.db_schema_object_indexid  + N'. COMPRESSION: ' + sz.data_compression_desc AS details, 
                            i.index_definition,
                            i.secret_columns,
                            i.index_usage_summary,
                            ISNULL(sz.index_size_summary,'') AS index_size_summary
                    FROM    #IndexSanity AS i
                    JOIN #IndexSanitySize sz ON i.index_sanity_id = sz.index_sanity_id
                    WHERE sz.data_compression_desc LIKE '%PAGE%' OR sz.data_compression_desc LIKE '%ROW%' OPTION    ( RECOMPILE );

            RAISERROR(N'check_id 64: Partitioned', 0,1) WITH NOWAIT;
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                    SELECT    64 AS check_id, 
                            i.index_sanity_id,
                            150 AS Priority,
                            N'Abnormal Psychology' AS findings_group,
                            N'Partitioned indexes' AS finding,
                            [database_name] AS [Database Name], 
                            N'http://BrentOzar.com/go/AbnormalPsychology' AS URL,
                            i.db_schema_object_indexid AS details, 
                            i.index_definition,
                            i.secret_columns,
                            i.index_usage_summary,
                            ISNULL(sz.index_size_summary,'') AS index_size_summary
                    FROM    #IndexSanity AS i
                    JOIN #IndexSanitySize sz ON i.index_sanity_id = sz.index_sanity_id
                    WHERE i.partition_key_column_name IS NOT NULL OPTION    ( RECOMPILE );

            RAISERROR(N'check_id 65: Non-Aligned Partitioned', 0,1) WITH NOWAIT;
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                    SELECT    65 AS check_id, 
                            i.index_sanity_id,
                            150 AS Priority,
                            N'Abnormal Psychology' AS findings_group,
                            N'Non-Aligned index on a partitioned table' AS finding,
                            i.[database_name] AS [Database Name], 
                            N'http://BrentOzar.com/go/AbnormalPsychology' AS URL,
                            i.db_schema_object_indexid AS details, 
                            i.index_definition,
                            i.secret_columns,
                            i.index_usage_summary,
                            ISNULL(sz.index_size_summary,'') AS index_size_summary
                    FROM    #IndexSanity AS i
                    JOIN #IndexSanity AS iParent ON
                        i.[object_id]=iParent.[object_id]
                        AND iParent.index_id IN (0,1) /* could be a partitioned heap or clustered table */
                        AND iParent.partition_key_column_name IS NOT NULL /* parent is partitioned*/         
                    JOIN #IndexSanitySize sz ON i.index_sanity_id = sz.index_sanity_id
                    WHERE i.partition_key_column_name IS NULL 
                        OPTION    ( RECOMPILE );

            RAISERROR(N'check_id 66: Recently created tables/indexes (1 week)', 0,1) WITH NOWAIT;
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                    SELECT    66 AS check_id, 
                            i.index_sanity_id,
                            200 AS Priority,
                            N'Abnormal Psychology' AS findings_group,
                            N'Recently created tables/indexes (1 week)' AS finding,
                            [database_name] AS [Database Name], 
                            N'http://BrentOzar.com/go/AbnormalPsychology' AS URL,
                            i.db_schema_object_indexid + N' was created on ' + 
                                CONVERT(NVARCHAR(16),i.create_date,121) + 
                                N'. Tables/indexes which are dropped/created regularly require special methods for index tuning.'
                                     AS details, 
                            i.index_definition,
                            i.secret_columns,
                            i.index_usage_summary,
                            ISNULL(sz.index_size_summary,'') AS index_size_summary
                    FROM    #IndexSanity AS i
                    JOIN #IndexSanitySize sz ON i.index_sanity_id = sz.index_sanity_id
                    WHERE i.create_date >= DATEADD(dd,-7,GETDATE()) 
                    AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
                        OPTION    ( RECOMPILE );

            RAISERROR(N'check_id 67: Recently modified tables/indexes (2 days)', 0,1) WITH NOWAIT;
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                    SELECT    67 AS check_id, 
                            i.index_sanity_id,
                            200 AS Priority,
                            N'Abnormal Psychology' AS findings_group,
                            N'Recently modified tables/indexes (2 days)' AS finding,
                            [database_name] AS [Database Name], 
                            N'http://BrentOzar.com/go/AbnormalPsychology' AS URL,
                            i.db_schema_object_indexid + N' was modified on ' + 
                                CONVERT(NVARCHAR(16),i.modify_date,121) + 
                                N'. A large amount of recently modified indexes may mean a lot of rebuilds are occurring each night.'
                                     AS details, 
                            i.index_definition,
                            i.secret_columns,
                            i.index_usage_summary,
                            ISNULL(sz.index_size_summary,'') AS index_size_summary
                    FROM    #IndexSanity AS i
                    JOIN #IndexSanitySize sz ON i.index_sanity_id = sz.index_sanity_id
                    WHERE i.modify_date > DATEADD(dd,-2,GETDATE()) 
                    AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
                    and /*Exclude recently created tables unless they've been modified after being created.*/
                    (i.create_date < DATEADD(dd,-7,GETDATE()) or i.create_date <> i.modify_date)
                        OPTION    ( RECOMPILE );

            RAISERROR(N'check_id 68: Identity columns within 30 percent of the end of range', 0,1) WITH NOWAIT;
            -- Allowed Ranges: 
                --int -2,147,483,648 to 2,147,483,647
                --smallint -32,768 to 32,768
                --tinyint 0 to 255

                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                        SELECT    68 AS check_id, 
                                i.index_sanity_id, 
                                200 AS Priority,
                                N'Abnormal Psychology' AS findings_group,
                                N'Identity column within ' +                                     
                                    CAST (calc1.percent_remaining as nvarchar(256))
                                    + N' percent  end of range' AS finding,
                                [database_name] AS [Database Name],
                                N'http://BrentOzar.com/go/AbnormalPsychology' AS URL,
                                i.db_schema_object_name + N'.' +  QUOTENAME(ic.column_name)
                                    + N' is an identity with type ' + ic.system_type_name 
                                    + N', last value of ' 
                                        + ISNULL(REPLACE(CONVERT(NVARCHAR(256),CAST(CAST(ic.last_value AS BIGINT) AS money), 1), '.00', ''),N'NULL')
                                    + N', seed of '
                                        + ISNULL(REPLACE(CONVERT(NVARCHAR(256),CAST(CAST(ic.seed_value AS BIGINT) AS money), 1), '.00', ''),N'NULL')
                                    + N', increment of ' + CAST(ic.increment_value AS NVARCHAR(256)) 
                                    + N', and range of ' +
                                        CASE ic.system_type_name WHEN 'int' THEN N'+/- 2,147,483,647'
                                            WHEN 'smallint' THEN N'+/- 32,768'
                                            WHEN 'tinyint' THEN N'0 to 255'
                                        END
                                        AS details,
                                i.index_definition,
                                secret_columns, 
                                ISNULL(i.index_usage_summary,''),
                                ISNULL(ip.index_size_summary,'')
                        FROM    #IndexSanity i
                        JOIN    #IndexColumns ic on
                            i.object_id=ic.object_id
                            and i.index_id in (0,1) /* heaps and cx only */
                            and ic.is_identity=1
                            and ic.system_type_name in ('tinyint', 'smallint', 'int')
                        JOIN    #IndexSanitySize ip ON i.index_sanity_id = ip.index_sanity_id
                        CROSS APPLY (
                            SELECT CAST(CASE WHEN ic.increment_value >= 0
                                    THEN
                                        CASE ic.system_type_name 
                                            WHEN 'int' then (2147483647 - (ISNULL(ic.last_value,ic.seed_value) + ic.increment_value)) / 2147483647.*100
                                            WHEN 'smallint' then (32768 - (ISNULL(ic.last_value,ic.seed_value) + ic.increment_value)) / 32768.*100
                                            WHEN 'tinyint' then ( 255 - (ISNULL(ic.last_value,ic.seed_value) + ic.increment_value)) / 255.*100
                                            ELSE 999
                                        END
                                ELSE --ic.increment_value is negative
                                        CASE ic.system_type_name 
                                            WHEN 'int' then ABS(-2147483647 - (ISNULL(ic.last_value,ic.seed_value) + ic.increment_value)) / 2147483647.*100
                                            WHEN 'smallint' then ABS(-32768 - (ISNULL(ic.last_value,ic.seed_value) + ic.increment_value)) / 32768.*100
                                            WHEN 'tinyint' then ABS( 0 - (ISNULL(ic.last_value,ic.seed_value) + ic.increment_value)) / 255.*100
                                            ELSE -1
                                        END 
                                END AS NUMERIC(5,1)) AS percent_remaining
                                ) as calc1
                        WHERE    i.index_id in (1,0)
                            and calc1.percent_remaining <= 30
                        UNION ALL
                        SELECT    68 AS check_id, 
                                i.index_sanity_id, 
                                200 AS Priority,
                                N'Abnormal Psychology' AS findings_group,
                                N'Identity column using a negative seed or increment other than 1' AS finding,
                                [database_name] AS [Database Name],
                                N'http://BrentOzar.com/go/AbnormalPsychology' AS URL,
                                i.db_schema_object_name + N'.' +  QUOTENAME(ic.column_name)
                                    + N' is an identity with type ' + ic.system_type_name 
                                    + N', last value of ' 
                                        + ISNULL(REPLACE(CONVERT(NVARCHAR(256),CAST(CAST(ic.last_value AS BIGINT) AS money), 1), '.00', ''),N'NULL')
                                    + N', seed of '
                                        + ISNULL(REPLACE(CONVERT(NVARCHAR(256),CAST(CAST(ic.seed_value AS BIGINT) AS money), 1), '.00', ''),N'NULL')
                                    + N', increment of ' + CAST(ic.increment_value AS NVARCHAR(256)) 
                                    + N', and range of ' +
                                        CASE ic.system_type_name WHEN 'int' THEN N'+/- 2,147,483,647'
                                            WHEN 'smallint' THEN N'+/- 32,768'
                                            WHEN 'tinyint' THEN N'0 to 255'
                                        END
                                        AS details,
                                i.index_definition,
                                secret_columns, 
                                ISNULL(i.index_usage_summary,''),
                                ISNULL(ip.index_size_summary,'')
                        FROM    #IndexSanity i
                        JOIN    #IndexColumns ic on
                            i.object_id=ic.object_id
                            and i.index_id in (0,1) /* heaps and cx only */
                            and ic.is_identity=1
                            and ic.system_type_name in ('tinyint', 'smallint', 'int')
                        JOIN    #IndexSanitySize ip ON i.index_sanity_id = ip.index_sanity_id
                        WHERE    i.index_id in (1,0)
                            and (ic.seed_value < 0 or ic.increment_value <> 1)
                        ORDER BY finding, details DESC OPTION    ( RECOMPILE );

            RAISERROR(N'check_id 69: Column collation does not match database collation', 0,1) WITH NOWAIT;
                WITH count_columns AS (
                            SELECT [object_id],
                                COUNT(*) as column_count
                            FROM #IndexColumns ic
                            WHERE index_id in (1,0) /*Heap or clustered only*/
                                and collation_name <> @collation
                            GROUP BY object_id
                            )
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                        SELECT    69 AS check_id, 
                                i.index_sanity_id, 
                                150 AS Priority,
                                N'Abnormal Psychology' AS findings_group,
                                N'Column collation does not match database collation' AS finding,
                                [database_name] AS [Database Name],
                                N'http://BrentOzar.com/go/AbnormalPsychology' AS URL,
                                i.db_schema_object_name 
                                    + N' has ' + CAST(column_count AS NVARCHAR(20))
                                    + N' column' + CASE WHEN column_count > 1 THEN 's' ELSE '' END
                                    + N' with a different collation than the db collation of '
                                    + @collation    AS details,
                                i.index_definition,
                                secret_columns, 
                                ISNULL(i.index_usage_summary,''),
                                ISNULL(ip.index_size_summary,'')
                        FROM    #IndexSanity i
                        JOIN    #IndexSanitySize ip ON i.index_sanity_id = ip.index_sanity_id
                        JOIN    count_columns AS cc ON i.[object_id]=cc.[object_id]
                        WHERE    i.index_id in (1,0)
                        AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
                        ORDER BY i.db_schema_object_name DESC OPTION    ( RECOMPILE );

            RAISERROR(N'check_id 70: Replicated columns', 0,1) WITH NOWAIT;
                WITH count_columns AS (
                            SELECT [object_id],
                                COUNT(*) as column_count,
                                SUM(CASE is_replicated WHEN 1 THEN 1 ELSE 0 END) as replicated_column_count
                            FROM #IndexColumns ic
                            WHERE index_id in (1,0) /*Heap or clustered only*/
                            GROUP BY object_id
                            )
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
                        SELECT    70 AS check_id, 
                                i.index_sanity_id,
                                200 AS Priority, 
                                N'Abnormal Psychology' AS findings_group,
                                N'Replicated columns' AS finding,
                                [database_name] AS [Database Name],
                                N'http://BrentOzar.com/go/AbnormalPsychology' AS URL,
                                i.db_schema_object_name 
                                    + N' has ' + CAST(replicated_column_count AS NVARCHAR(20))
                                    + N' out of ' + CAST(column_count AS NVARCHAR(20))
                                    + N' column' + CASE WHEN column_count > 1 THEN 's' ELSE '' END
                                    + N' in one or more publications.'
                                        AS details,
                                i.index_definition,
                                secret_columns, 
                                ISNULL(i.index_usage_summary,''),
                                ISNULL(ip.index_size_summary,'')
                        FROM    #IndexSanity i
                        JOIN    #IndexSanitySize ip ON i.index_sanity_id = ip.index_sanity_id
                        JOIN    count_columns AS cc ON i.[object_id]=cc.[object_id]
                        WHERE    i.index_id in (1,0)
                            and replicated_column_count > 0
                            AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
                        ORDER BY i.db_schema_object_name DESC OPTION    ( RECOMPILE );

            RAISERROR(N'check_id 71: Cascading updates or cascading deletes.', 0,1) WITH NOWAIT;
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary, more_info )
            SELECT    71 AS check_id, 
                    null as index_sanity_id,
                    150 AS Priority,
                    N'Abnormal Psychology' AS findings_group,
                    N'Cascading Updates or Deletes' AS finding, 
                    [database_name] AS [Database Name],
                    N'http://BrentOzar.com/go/AbnormalPsychology' AS URL,
                    N'Foreign Key ' + foreign_key_name +
                    N' on ' + QUOTENAME(parent_object_name)  + N'(' + LTRIM(parent_fk_columns) + N')'
                        + N' referencing ' + QUOTENAME(referenced_object_name) + N'(' + LTRIM(referenced_fk_columns) + N')'
                        + N' has settings:'
                        + CASE [delete_referential_action_desc] WHEN N'NO_ACTION' THEN N'' ELSE N' ON DELETE ' +[delete_referential_action_desc] END
                        + CASE [update_referential_action_desc] WHEN N'NO_ACTION' THEN N'' ELSE N' ON UPDATE ' + [update_referential_action_desc] END
                            AS details, 
                    [fk].[database_name] 
                            AS index_definition, 
                    N'N/A' AS secret_columns,
                    N'N/A' AS index_usage_summary,
                    N'N/A' AS index_size_summary,
                    (SELECT TOP 1 more_info from #IndexSanity i where i.object_id=fk.parent_object_id)
                        AS more_info
            from #ForeignKeys fk
            where ([delete_referential_action_desc] <> N'NO_ACTION'
            OR [update_referential_action_desc] <> N'NO_ACTION')
            AND NOT (@GetAllDatabases = 1 OR @Mode = 0)

    END

         ----------------------------------------
        --Workaholics: Check_id 80-89
        ----------------------------------------
    BEGIN

        RAISERROR(N'check_id 80: Most scanned indexes (index_usage_stats)', 0,1) WITH NOWAIT;
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )

        --Workaholics according to index_usage_stats
        --This isn't perfect: it mentions the number of scans present in a plan
        --A "scan" isn't necessarily a full scan, but hey, we gotta do the best with what we've got.
        --in the case of things like indexed views, the operator might be in the plan but never executed
        SELECT TOP 5 
            80 AS check_id,
            i.index_sanity_id as index_sanity_id,
            200 AS Priority,
            N'Workaholics' as findings_group,
            N'Scan-a-lots (index_usage_stats)' as finding,
            [database_name] AS [Database Name],
            N'http://BrentOzar.com/go/Workaholics' AS URL,
            REPLACE(CONVERT( NVARCHAR(50),CAST(i.user_scans AS MONEY),1),'.00','')
                + N' scans against ' + i.db_schema_object_indexid
                + N'. Latest scan: ' + ISNULL(cast(i.last_user_scan as nvarchar(128)),'?') + N'. ' 
                + N'ScanFactor=' + cast(((i.user_scans * iss.total_reserved_MB)/1000000.) as NVARCHAR(256)) as details,
            isnull(i.key_column_names_with_sort_order,'N/A') as index_definition,
            isnull(i.secret_columns,'') as secret_columns,
            i.index_usage_summary as index_usage_summary,
            iss.index_size_summary as index_size_summary
        FROM #IndexSanity i
        JOIN #IndexSanitySize iss on i.index_sanity_id=iss.index_sanity_id
        WHERE isnull(i.user_scans,0) > 0
        AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
        ORDER BY  i.user_scans * iss.total_reserved_MB DESC;

        RAISERROR(N'check_id 81: Top recent accesses (op stats)', 0,1) WITH NOWAIT;
                INSERT    #BlitzIndexResults ( check_id, index_sanity_id, Priority, findings_group, finding, [database_name], URL, details, index_definition,
                                               secret_columns, index_usage_summary, index_size_summary )
        --Workaholics according to index_operational_stats
        --This isn't perfect either: range_scan_count contains full scans, partial scans, even seeks in nested loop ops
        --But this can help bubble up some most-accessed tables 
        SELECT TOP 5 
            81 as check_id,
            i.index_sanity_id as index_sanity_id,
            200 AS Priority,
            N'Workaholics' as findings_group,
            N'Top recent accesses (index_op_stats)' as finding,
            [database_name] AS [Database Name],
            N'http://BrentOzar.com/go/Workaholics' AS URL,
            ISNULL(REPLACE(
                    CONVERT(NVARCHAR(50),cast((iss.total_range_scan_count + iss.total_singleton_lookup_count) AS MONEY),1),
                    N'.00',N'') 
                + N' uses of ' + i.db_schema_object_indexid + N'. '
                + REPLACE(CONVERT(NVARCHAR(50), CAST(iss.total_range_scan_count AS MONEY),1),N'.00',N'') + N' scans or seeks. '
                + REPLACE(CONVERT(NVARCHAR(50), CAST(iss.total_singleton_lookup_count AS MONEY), 1),N'.00',N'') + N' singleton lookups. '
                + N'OpStatsFactor=' + cast(((((iss.total_range_scan_count + iss.total_singleton_lookup_count) * iss.total_reserved_MB))/1000000.) as varchar(256)),'') as details,
            isnull(i.key_column_names_with_sort_order,'N/A') as index_definition,
            isnull(i.secret_columns,'') as secret_columns,
            i.index_usage_summary as index_usage_summary,
            iss.index_size_summary as index_size_summary
        FROM #IndexSanity i
        JOIN #IndexSanitySize iss on i.index_sanity_id=iss.index_sanity_id
        WHERE (ISNULL(iss.total_range_scan_count,0)  > 0 or isnull(iss.total_singleton_lookup_count,0) > 0)
        AND NOT (@GetAllDatabases = 1 OR @Mode = 0)
        ORDER BY ((iss.total_range_scan_count + iss.total_singleton_lookup_count) * iss.total_reserved_MB) DESC;


    END
 
        RAISERROR(N'Insert a row to help people find help', 0,1) WITH NOWAIT;
        IF DATEDIFF(MM, @VersionDate, GETDATE()) > 6
		BEGIN
            INSERT    #BlitzIndexResults ( Priority, check_id, findings_group, finding, URL, details, index_definition,
                                            index_usage_summary, index_size_summary )
            VALUES  ( -1, 0 , 
		           'Outdated sp_BlitzIndex', 'sp_BlitzIndex is Over 6 Months Old', 'http://FirstResponderKit.org/', 
                   'Fine wine gets better with age, but this sp_BlitzIndex (TM) v' + @Version + ' as of ' + CAST(CONVERT(DATETIME, @VersionDate, 102) AS VARCHAR(100)) + ' is more like bad cheese. Time to get a new one.',
                    N'',N'',N''
                    );
        END

        IF EXISTS(SELECT * FROM #BlitzIndexResults)
		BEGIN
            INSERT    #BlitzIndexResults ( Priority, check_id, findings_group, finding, URL, details, index_definition,
                                            index_usage_summary, index_size_summary )
            VALUES  ( -1, 0 , 
		           'sp_BlitzIndex (TM) v' + @Version + ' as of ' + CAST(CONVERT(DATETIME, @VersionDate, 102) AS VARCHAR(100)),
                    CASE WHEN @GetAllDatabases = 1 THEN N'All Databases' ELSE N'Database ' + QUOTENAME(@DatabaseName) + N' as of ' + convert(nvarchar(16),getdate(),121) END, 
                    N'From Your Community Volunteers' ,   N'http://FirstResponderKit.org' ,
                    N''
                    , N'',N''
                    );
        END
        ELSE IF @Mode = 0 OR @GetAllDatabases = 1
        BEGIN
            INSERT    #BlitzIndexResults ( Priority, check_id, findings_group, finding, URL, details, index_definition,
                                            index_usage_summary, index_size_summary )
            VALUES  ( -1, 0 , 
		           'sp_BlitzIndex (TM) v' + @Version + ' as of ' + CAST(CONVERT(DATETIME, @VersionDate, 102) AS VARCHAR(100)),
                    CASE WHEN @GetAllDatabases = 1 THEN N'All Databases' ELSE N'Database ' + QUOTENAME(@DatabaseName) + N' as of ' + convert(nvarchar(16),getdate(),121) END, 
                    N'From Your Community Volunteers' ,   N'http://FirstResponderKit.org' ,
                    N''
                    , N'',N''
                    );
            INSERT    #BlitzIndexResults ( Priority, check_id, findings_group, finding, URL, details, index_definition,
                                            index_usage_summary, index_size_summary )
            VALUES  ( 1, 0 , 
		           'No Major Problems Found',
                   'Nice Work!',
                   'http://FirstResponderKit.org', 'Consider running with @Mode = 4 in individual databases (not all) for more detailed diagnostics.', 'The new default Mode 0 only looks for very serious index issues.', '', ''
                    );

        END
        ELSE
        BEGIN
            INSERT    #BlitzIndexResults ( Priority, check_id, findings_group, finding, URL, details, index_definition,
                                            index_usage_summary, index_size_summary )
            VALUES  ( -1, 0 , 
		           'sp_BlitzIndex (TM) v' + @Version + ' as of ' + CAST(CONVERT(DATETIME, @VersionDate, 102) AS VARCHAR(100)),
                    CASE WHEN @GetAllDatabases = 1 THEN N'All Databases' ELSE N'Database ' + QUOTENAME(@DatabaseName) + N' as of ' + convert(nvarchar(16),getdate(),121) END, 
                    N'From Your Community Volunteers' ,   N'http://www.BrentOzar.com/BlitzIndex' ,
                    N''
                    , N'',N''
                    );
            INSERT    #BlitzIndexResults ( Priority, check_id, findings_group, finding, URL, details, index_definition,
                                            index_usage_summary, index_size_summary )
            VALUES  ( 1, 0 , 
		           'No Problems Found',
                   'Nice job! Or more likely, you have a nearly empty database.',
                   'http://FirstResponderKit.org', 'Time to go read some blog posts.', '', '', ''
                    );

        END

        RAISERROR(N'Returning results.', 0,1) WITH NOWAIT;
            
        /*Return results.*/
        IF @GetAllDatabases = 1
        BEGIN

            SELECT Priority, isnull(br.findings_group,N'') + 
                    CASE WHEN ISNULL(br.finding,N'') <> N'' THEN N': ' ELSE N'' END
                    + br.finding AS [Finding], 
                br.[database_name] AS [Database Name],
                br.details AS [Details: schema.table.index(indexid)], 
                br.index_definition AS [Definition: [Property]] ColumnName {datatype maxbytes}], 
                ISNULL(br.secret_columns,'') AS [Secret Columns],          
                br.index_usage_summary AS [Usage], 
                br.index_size_summary AS [Size],
                COALESCE(br.more_info,sn.more_info,'') AS [More Info],
                br.URL, 
                COALESCE(br.create_tsql,ts.create_tsql,'') AS [Create TSQL]
            FROM #BlitzIndexResults br
            LEFT JOIN #IndexSanity sn ON 
                br.index_sanity_id=sn.index_sanity_id
            LEFT JOIN #IndexCreateTsql ts ON 
                br.index_sanity_id=ts.index_sanity_id
            WHERE br.check_id IN (0, 1, 11, 22, 43, 68, 50, 60, 61, 62, 63, 64, 65)
            ORDER BY Priority, br.findings_group, br.finding, br.database_name ASC, [check_id] ASC, blitz_result_id ASC;

        END
        ELSE
            SELECT Priority, isnull(br.findings_group,N'') + 
                    CASE WHEN ISNULL(br.finding,N'') <> N'' THEN N': ' ELSE N'' END
                    + br.finding AS [Finding], 

                br.details AS [Details: schema.table.index(indexid)], 
                br.index_definition AS [Definition: [Property]] ColumnName {datatype maxbytes}], 
                ISNULL(br.secret_columns,'') AS [Secret Columns],          
                br.index_usage_summary AS [Usage], 
                br.index_size_summary AS [Size],
                COALESCE(br.more_info,sn.more_info,'') AS [More Info],
                br.URL, 
                COALESCE(br.create_tsql,ts.create_tsql,'') AS [Create TSQL]
            FROM #BlitzIndexResults br
            LEFT JOIN #IndexSanity sn ON 
                br.index_sanity_id=sn.index_sanity_id
            LEFT JOIN #IndexCreateTsql ts ON 
                br.index_sanity_id=ts.index_sanity_id
            ORDER BY Priority, br.findings_group, br.finding, br.database_name ASC, [check_id] ASC, blitz_result_id ASC;



    END; /* End @Mode=0 or 4 (diagnose)*/
    ELSE IF @Mode=1 /*Summarize*/
    BEGIN
    --This mode is to give some overall stats on the database.
        RAISERROR(N'@Mode=1, we are summarizing.', 0,1) WITH NOWAIT;

        SELECT 
            CAST((COUNT(*)) AS NVARCHAR(256)) AS [Number Objects],
            CAST(CAST(SUM(sz.total_reserved_MB)/
                1024. AS numeric(29,1)) AS NVARCHAR(500)) AS [All GB],
            CAST(CAST(SUM(sz.total_reserved_LOB_MB)/
                1024. AS numeric(29,1)) AS NVARCHAR(500)) AS [LOB GB],
            CAST(CAST(SUM(sz.total_reserved_row_overflow_MB)/
                1024. AS numeric(29,1)) AS NVARCHAR(500)) AS [Row Overflow GB],
            CAST(SUM(CASE WHEN index_id=1 THEN 1 ELSE 0 END)AS NVARCHAR(50)) AS [Clustered Tables],
            CAST(SUM(CASE WHEN index_id=1 THEN sz.total_reserved_MB ELSE 0 END)
                /1024. AS numeric(29,1)) AS [Clustered Tables GB],
            SUM(CASE WHEN index_id NOT IN (0,1) THEN 1 ELSE 0 END) AS [NC Indexes],
            CAST(SUM(CASE WHEN index_id NOT IN (0,1) THEN sz.total_reserved_MB ELSE 0 END)
                /1024. AS numeric(29,1)) AS [NC Indexes GB],
            CASE WHEN SUM(CASE WHEN index_id NOT IN (0,1) THEN sz.total_reserved_MB ELSE 0 END)  > 0 THEN
                CAST(SUM(CASE WHEN index_id IN (0,1) THEN sz.total_reserved_MB ELSE 0 END)
                    / SUM(CASE WHEN index_id NOT IN (0,1) THEN sz.total_reserved_MB ELSE 0 END) AS NUMERIC(29,1)) 
                ELSE 0 END AS [ratio table: NC Indexes],
            SUM(CASE WHEN index_id=0 THEN 1 ELSE 0 END) AS [Heaps],
            CAST(SUM(CASE WHEN index_id=0 THEN sz.total_reserved_MB ELSE 0 END)
                /1024. AS numeric(29,1)) AS [Heaps GB],
            SUM(CASE WHEN index_id IN (0,1) AND partition_key_column_name IS NOT NULL THEN 1 ELSE 0 END) AS [Partitioned Tables],
            SUM(CASE WHEN index_id NOT IN (0,1) AND  partition_key_column_name IS NOT NULL THEN 1 ELSE 0 END) AS [Partitioned NCs],
            CAST(SUM(CASE WHEN partition_key_column_name IS NOT NULL THEN sz.total_reserved_MB ELSE 0 END)/1024. AS numeric(29,1)) AS [Partitioned GB],
            SUM(CASE WHEN filter_definition <> '' THEN 1 ELSE 0 END) AS [Filtered Indexes],
            SUM(CASE WHEN is_indexed_view=1 THEN 1 ELSE 0 END) AS [Indexed Views],
            MAX(total_rows) AS [Max Row Count],
            CAST(MAX(CASE WHEN index_id IN (0,1) THEN sz.total_reserved_MB ELSE 0 END)
                /1024. AS numeric(29,1)) AS [Max Table GB],
            CAST(MAX(CASE WHEN index_id NOT IN (0,1) THEN sz.total_reserved_MB ELSE 0 END)
                /1024. AS numeric(29,1)) AS [Max NC Index GB],
            SUM(CASE WHEN index_id IN (0,1) AND sz.total_reserved_MB > 1024 THEN 1 ELSE 0 END) AS [Count Tables > 1GB],
            SUM(CASE WHEN index_id IN (0,1) AND sz.total_reserved_MB > 10240 THEN 1 ELSE 0 END) AS [Count Tables > 10GB],
            SUM(CASE WHEN index_id IN (0,1) AND sz.total_reserved_MB > 102400 THEN 1 ELSE 0 END) AS [Count Tables > 100GB],    
            SUM(CASE WHEN index_id NOT IN (0,1) AND sz.total_reserved_MB > 1024 THEN 1 ELSE 0 END) AS [Count NCs > 1GB],
            SUM(CASE WHEN index_id NOT IN (0,1) AND sz.total_reserved_MB > 10240 THEN 1 ELSE 0 END) AS [Count NCs > 10GB],
            SUM(CASE WHEN index_id NOT IN (0,1) AND sz.total_reserved_MB > 102400 THEN 1 ELSE 0 END) AS [Count NCs > 100GB],
            MIN(create_date) AS [Oldest Create Date],
            MAX(create_date) AS [Most Recent Create Date],
            MAX(modify_date) as [Most Recent Modify Date],
            1 as [Display Order]
        FROM #IndexSanity AS i
        --left join here so we don't lose disabled nc indexes
        LEFT JOIN #IndexSanitySize AS sz 
            ON i.index_sanity_id=sz.index_sanity_id 
        UNION ALL
        SELECT    N'Database ' + QUOTENAME(@DatabaseName) + N' as of ' + convert(nvarchar(16),getdate(),121)    ,        
                N'sp_BlitzIndex (TM) v' + @Version + ' as of ' + CAST(CONVERT(DATETIME, @VersionDate, 102) AS VARCHAR(100)),   
                N'From Your Community Volunteers' ,   
                N'http://FirstResponderKit.org' ,
                N'',
                NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,
                NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,
                NULL,0 as display_order
        ORDER BY [Display Order] ASC
        OPTION (RECOMPILE);
           
    END /* End @Mode=1 (summarize)*/
    ELSE IF @Mode=2 /*Index Detail*/
    BEGIN
        --This mode just spits out all the detail without filters.
        --This supports slicing AND dicing in Excel
        RAISERROR(N'@Mode=2, here''s the details on existing indexes.', 0,1) WITH NOWAIT;

        SELECT    database_name AS [Database Name], 
                [schema_name] AS [Schema Name], 
                [object_name] AS [Object Name], 
                ISNULL(index_name, '') AS [Index Name], 
                cast(index_id as VARCHAR(10))AS [Index ID],
                db_schema_object_indexid AS [Details: schema.table.index(indexid)], 
                CASE    WHEN index_id IN ( 1, 0 ) THEN 'TABLE'
                    ELSE 'NonClustered'
                    END AS [Object Type], 
                index_definition AS [Definition: [Property]] ColumnName {datatype maxbytes}],
                ISNULL(LTRIM(key_column_names_with_sort_order), '') AS [Key Column Names With Sort],
                ISNULL(count_key_columns, 0) AS [Count Key Columns],
                ISNULL(include_column_names, '') AS [Include Column Names], 
                ISNULL(count_included_columns,0) AS [Count Included Columns],
                ISNULL(secret_columns,'') AS [Secret Column Names], 
                ISNULL(count_secret_columns,0) AS [Count Secret Columns],
                ISNULL(partition_key_column_name, '') AS [Partition Key Column Name],
                ISNULL(filter_definition, '') AS [Filter Definition], 
                is_indexed_view AS [Is Indexed View], 
                is_primary_key AS [Is Primary Key],
                is_XML AS [Is XML],
                is_spatial AS [Is Spatial],
                is_NC_columnstore AS [Is NC Columnstore],
                is_CX_columnstore AS [Is CX Columnstore],
                is_disabled AS [Is Disabled], 
                is_hypothetical AS [Is Hypothetical],
                is_padded AS [Is Padded], 
                fill_factor AS [Fill Factor], 
                is_referenced_by_foreign_key AS [Is Reference by Foreign Key], 
                last_user_seek AS [Last User Seek], 
                last_user_scan AS [Last User Scan], 
                last_user_lookup AS [Last User Lookup],
                last_user_update AS [Last User Update], 
                total_reads AS [Total Reads], 
                user_updates AS [User Updates], 
                reads_per_write AS [Reads Per Write], 
                index_usage_summary AS [Index Usage], 
                sz.partition_count AS [Partition Count],
                sz.total_rows AS [Rows], 
                sz.total_reserved_MB AS [Reserved MB], 
                sz.total_reserved_LOB_MB AS [Reserved LOB MB], 
                sz.total_reserved_row_overflow_MB AS [Reserved Row Overflow MB],
                sz.index_size_summary AS [Index Size], 
                sz.total_row_lock_count AS [Row Lock Count],
                sz.total_row_lock_wait_count AS [Row Lock Wait Count],
                sz.total_row_lock_wait_in_ms AS [Row Lock Wait ms],
                sz.avg_row_lock_wait_in_ms AS [Avg Row Lock Wait ms],
                sz.total_page_lock_count AS [Page Lock Count],
                sz.total_page_lock_wait_count AS [Page Lock Wait Count],
                sz.total_page_lock_wait_in_ms AS [Page Lock Wait ms],
                sz.avg_page_lock_wait_in_ms AS [Avg Page Lock Wait ms],
                sz.total_index_lock_promotion_attempt_count AS [Lock Escalation Attempts],
                sz.total_index_lock_promotion_count AS [Lock Escalations],
                sz.data_compression_desc AS [Data Compression],
                i.create_date AS [Create Date],
                i.modify_date as [Modify Date],
                more_info AS [More Info],
                1 as [Display Order]
        FROM    #IndexSanity AS i --left join here so we don't lose disabled nc indexes
                LEFT JOIN #IndexSanitySize AS sz ON i.index_sanity_id = sz.index_sanity_id
        ORDER BY [Display Order] ASC, [Reserved MB] DESC
        OPTION (RECOMPILE);



    END /* End @Mode=2 (index detail)*/
    ELSE IF @Mode=3 /*Missing index Detail*/
    BEGIN
        SELECT 
            database_name AS [Database], 
            [schema_name] AS [Schema], 
            table_name AS [Table], 
            CAST((magic_benefit_number/@DaysUptime) AS BIGINT)
                AS [Magic Benefit Number], 
            missing_index_details AS [Missing Index Details], 
            avg_total_user_cost AS [Avg Query Cost], 
            avg_user_impact AS [Est Index Improvement], 
            user_seeks AS [Seeks], 
            user_scans AS [Scans],
            unique_compiles AS [Compiles], 
            equality_columns AS [Equality Columns], 
            inequality_columns AS [Inequality Columns], 
            included_columns AS [Included Columns], 
            index_estimated_impact AS [Estimated Impact], 
            create_tsql AS [Create TSQL], 
            more_info AS [More Info],
            1 as [Display Order]
        FROM #MissingIndexes
        /* Minimum benefit threshold = 100k/day of uptime */
        WHERE (magic_benefit_number/@DaysUptime) >= 100000
        UNION ALL
        SELECT                 
            N'sp_BlitzIndex (TM) v' + @Version + ' as of ' + CAST(CONVERT(DATETIME, @VersionDate, 102) AS VARCHAR(100)),   
            N'From Your Community Volunteers' ,   
            N'http://FirstResponderKit.org' ,
            100000000000,
            N'',
            NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,
            NULL, 0 as display_order
        ORDER BY [Display Order] ASC, [Magic Benefit Number] DESC

    END /* End @Mode=3 (index detail)*/
END
END TRY

BEGIN CATCH
        RAISERROR (N'Failure analyzing temp tables.', 0,1) WITH NOWAIT;

        SELECT    @msg = ERROR_MESSAGE(), @ErrorSeverity = ERROR_SEVERITY(), @ErrorState = ERROR_STATE();

        RAISERROR (@msg, 
               @ErrorSeverity, 
               @ErrorState 
               );
        
        WHILE @@trancount > 0 
            ROLLBACK;

        RETURN;
    END CATCH;

GO