improve

Author: digoal

202406/20240618_01.md

@@ -88,6 +88,8 @@ initdb --help
   -k, --data-checksums      use data page checksums  
 ```  
 
+7、关闭计数器, pg_stat_statements等带来额外开销的插件.   
+  
 以上都属于君子配置, 没什么危害. 下面来一点作弊配置.    
 
 1、少写点wal.    

202406/20240621_01.md

@@ -139,7 +139,7 @@ begin
   
   for loc in select case spcname when 'pg_default' then './base' else pg_tablespace_location(oid)||const end case from pg_tablespace where spcname <> 'pg_global' and oid in (select oid from pg_tablespace)   
   loop  
-    for ofile in select file from pg_ls_dir(format('%s/%s', loc, dbo)) as file where file ~ '^[0-9]*$' and file::text not in ( select pg_relation_filenode(oid)::text from pg_class where pg_relation_filenode(oid)::text is not null )   
+    for ofile in select file from pg_ls_dir(format('%s/%s', loc, dbo)) as file where file ~ '^[0-9]*$' and file::text not in ( select pg_relation_filenode(oid)::text from pg_class where pg_relation_filenode(oid)::text is not null )      
     loop  
       for ofiles in select file from pg_ls_dir(format('%s/%s', loc, dbo)) as file where file = ofile or file ~ ('^'||ofile||'_') or file ~ ('^'||ofile||'\.')    
       loop