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MDEV-12137 DELETE statement with the same source and target

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single-table deletes only
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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
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5
mysql-test/r/subselect_no_scache.result
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@@ -613,11 +613,12 @@ select * from t1 where b = (select b from t2 where t1.a = t2.a);
a b
2 12
delete from t1 where b in (select b from t1);
ERROR HY000: Table 't1' is specified twice, both as a target for 'DELETE' and as a separate source for data
affected rows: 3
insert into t1 values (0, 10),(1, 11),(2, 12);
delete from t1 where b = (select b from t2);
ERROR 21000: Subquery returns more than 1 row
delete from t1 where b = (select b from t2 where t1.a = t2.a);
select * from t1;
select * from t1 order by b;
a b
0 10
1 11