optimize MySql.BatchInsert AutoIncrement

Author: Ahoo-Wang

src/SmartSql.Batch.MySql/BatchInsert.cs

@@ -65,13 +65,17 @@ private string ToCSV()
                     var colMapping = colMappingKey.Value;
                     var col = Table.Columns[colMapping.Column];
                     if (colIndex != 0) dataBuilder.Append(_fieldTerminator);
-                    if (col.DataType == typeof(string) 
-                        && row[col.Name] != null 
+                    if (col.DataType == typeof(string)
+                        && row[col.Name] != null
                         && row[col.Name].ToString().Contains(_fieldTerminator))
                     {
                         dataBuilder.AppendFormat("\"{0}\"", row[col.Name].ToString().Replace("\"", "\"\""));
                     }
-                    else dataBuilder.Append(row[col.Name]?.ToString());
+                    else
+                    {
+                        var colValStr = (col.AutoIncrement.HasValue && col.AutoIncrement.Value) ? "" : row[col.Name]?.ToString();
+                        dataBuilder.Append(colValStr);
+                    }
                     colIndex++;
                 }
                 dataBuilder.Append(_lineTerminator);

src/SmartSql.UTests/Batch/MySql.cs

@@ -21,7 +21,12 @@ public void Insert()
         {
             var batchInsertNum = 1000000;
             var batchTable = new DbTable("t_test");
-            batchTable.AddColumn("id");
+            batchTable.AddColumn(new DbColumn
+            {
+                AutoIncrement = true,
+                DataType = typeof(long),
+                Name = "id"
+            });
             batchTable.AddColumn("name");
             batchTable.AddColumn("no");
             for (var i = 0; i < batchInsertNum; i++)
@@ -41,7 +46,12 @@ public async Task InsertAsync()
         {
             var batchInsertNum = 1000000;
             var batchTable = new DbTable("t_test");
-            batchTable.AddColumn("id");
+            batchTable.AddColumn(new DbColumn
+            {
+                AutoIncrement = true,
+                DataType = typeof(long),
+                Name = "id"
+            });
             batchTable.AddColumn("name");
             batchTable.AddColumn("no");
             for (var i = 0; i < batchInsertNum; i++)

src/SmartSql.UTests/SmartSqlMapConfig-MySql.xml

@@ -4,12 +4,11 @@
   <Database>
     <!--ParameterPrefix:[SqlServer:@ | MySQL:? |Oracle::] -->
     <DbProvider Name="MySqlClientFactory" ParameterPrefix="?" Type="MySql.Data.MySqlClient.MySqlClientFactory,MySql.Data"/>
-    <Write Name="WriteDB" ConnectionString="Data Source=localhost;database=SmartSqlStarterDB;uid=root;pwd=SmartSql.Net;CharSet=utf8;SslMode=None;Allow User Variables=True"/>  
+    <Write Name="WriteDB" ConnectionString="Data Source=localhost;database=SmartSqlStarterDB;uid=root;pwd=SmartSql.Net;CharSet=utf8;SslMode=None;"/>  
   </Database>
 
   <TypeHandlers>
     <TypeHandler Name="Json" Type="SmartSql.TypeHandler.JsonTypeHandler,SmartSql.TypeHandler"/>
     <TypeHandler Name="Xml" Type="SmartSql.TypeHandler.XmlTypeHandler,SmartSql.TypeHandler"/>
   </TypeHandlers>
-
-</SmartSqlMapConfig>
+</SmartSqlMapConfig>