database/mariadb
1
0
Fork 0
mirror of https://github.com/MariaDB/server.git synced 2025-07-29 05:21:33 +03:00
Code Activity

MDEV-12137 DELETE statement with the same source and target

Browse Source 
single-table deletes only
This commit is contained in:
halfspawn
2017-07-07 17:50:09 +02:00
committed by Sergei Golubchik
parent 30fee6150a
commit abf95afa2a
18 changed files with 529 additions and 74 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
sql/sql_prepare.cc
View File

@ -1496,6 +1496,7 @@ static bool mysql_test_delete(Prepared_statement *stmt,
uint table_count= 0;
THD *thd= stmt->thd;
LEX *lex= stmt->lex;
uint delete_while_scanning=1;
DBUG_ENTER("mysql_test_delete");
if (delete_precheck(thd, table_list) ||
@ -1524,7 +1525,8 @@ static bool mysql_test_delete(Prepared_statement *stmt,
DBUG_RETURN(mysql_prepare_delete(thd, table_list,
lex->select_lex.with_wild,
lex->select_lex.item_list,
&lex->select_lex.where));
&lex->select_lex.where,
delete_while_scanning));
error:
DBUG_RETURN(TRUE);
}