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MDEV-12137 DELETE statement with the same source and target

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* various cleanups (mostly cosmetic)
* remove useless tests (that were tesing the error condition)
* optimize delete_use_source test (from 6 mins to 50 seconds,
  mainly by removing two huge rollbacks at the end).
This commit is contained in:
Sergei Golubchik
2017-07-07 19:55:31 +02:00
parent abf95afa2a
commit c65cce3698
11 changed files with 173 additions and 365 deletions
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4
sql/sql_prepare.cc
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@ -1496,7 +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;
bool delete_while_scanning;
DBUG_ENTER("mysql_test_delete");
if (delete_precheck(thd, table_list) ||
@ -1526,7 +1526,7 @@ static bool mysql_test_delete(Prepared_statement *stmt,
lex->select_lex.with_wild,
lex->select_lex.item_list,
&lex->select_lex.where,
delete_while_scanning));
&delete_while_scanning));
error:
DBUG_RETURN(TRUE);
}