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check that table used in multi-update is unique added (BUG#5455)

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bell@sanja.is.com.ua
2004-09-08 13:39:15 +03:00
parent dab8918647
commit 0badc913bb
6 changed files with 70 additions and 20 deletions
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7
mysql-test/r/multi_update.result
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@@ -455,3 +455,10 @@ create table t3 (a int, primary key (a));
delete t1,t3 from t1,t2 where t1.a=t2.a and t2.a=(select t3.a from t3 where t1.a=t3.a);
ERROR 42S02: Unknown table 't3' in MULTI DELETE
drop table t1, t2, t3;
create table t1 (col1 int);
create table t2 (col1 int);
update t1,t2 set t1.col1 = (select max(col1) from t1) where t1.col1 = t2.col1;
ERROR HY000: You can't specify target table 't1' for update in FROM clause
delete t1 from t1,t2 where t1.col1 < (select max(col1) from t1) and t1.col1 = t2.col1;
ERROR HY000: You can't specify target table 't1' for update in FROM clause
drop table t1,t2;