Update union all

Src/Asp.Net/SqlSugar.MySqlConnector/MySql/SqlBuilder/MySqlBuilder.cs

@@ -22,5 +22,9 @@ namespace SqlSugar.MySqlConnector
                 return "select sysdate()";
             }
         }
+        public override string GetUnionFomatSql(string sql)
+        {
+            return " ( " + sql + " )  ";
+        }
     }
 }

Src/Asp.Net/SqlSugar/Abstract/SqlBuilderProvider/SqlBuilderProvider.cs

@@ -333,14 +333,7 @@ namespace SqlSugar
         }
         public virtual string GetUnionFomatSql(string sql)
         {
-            if (this.Context.CurrentConnectionConfig.DbType.IsIn(DbType.MySql, DbType.PostgreSQL,DbType.MySqlConnector))
-            {
-                return $" ( {sql} ) ";
-            }
-            else
-            {
-                return sql;
-            }
+            return sql;
         }
         private void BuilderTree(StringBuilder builder,ConditionalTree item,ref  int indexTree, List<SugarParameter>  parameters,ref int mainIndex)
         {

Src/Asp.Net/SqlSugar/Realization/MySql/SqlBuilder/MySqlBuilder.cs

@@ -22,5 +22,9 @@ namespace SqlSugar
                 return "select sysdate()";
             }
         }
+        public override string GetUnionFomatSql(string sql)
+        {
+            return " ( " + sql + " )  ";
+        }
     }
 }

Src/Asp.Net/SqlSugar/Realization/PostgreSQL/SqlBuilder/PostgreSQLBuilder.cs

@@ -98,5 +98,9 @@ namespace SqlSugar
                 return SqlTranslationLeft + name.ToLower(isAutoToLower).TrimEnd('"').TrimStart('"') + SqlTranslationRight;
             }
         }
+        public override string GetUnionFomatSql(string sql)
+        {
+            return " ( " + sql + " )  ";
+        }
     }
 }