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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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42
mysql-test/r/merge.result
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@ -3742,48 +3742,6 @@ update m1 set a = ((select max(a) from v1));
ERROR HY000: The definition of table 'v1' prevents operation UPDATE on table 'm1'
update m1 set a = ((select max(a) from tmp, v1));
ERROR HY000: The definition of table 'v1' prevents operation UPDATE on table 'm1'
delete from m1 where a = (select max(a) from m1);
insert into t1 (a) values (1);
insert into t2 (a) values (1);
delete from m1 where a = (select max(a) from m2);
insert into t1 (a) values (1);
insert into t2 (a) values (1);
delete from m1 where a = (select max(a) from t1);
insert into t1 (a) values (1);
insert into t2 (a) values (1);
delete from m1 where a = (select max(a) from t2);
insert into t1 (a) values (1);
insert into t2 (a) values (1);
delete from m1 where a = (select max(a) from t3, m1);
insert into t1 (a) values (1);
insert into t2 (a) values (1);
delete from m1 where a = (select max(a) from t3, m2);
insert into t1 (a) values (1);
insert into t2 (a) values (1);
delete from m1 where a = (select max(a) from t3, t1);
insert into t1 (a) values (1);
insert into t2 (a) values (1);
delete from m1 where a = (select max(a) from t3, t2);
insert into t1 (a) values (1);
insert into t2 (a) values (1);
delete from m1 where a = (select max(a) from tmp, m1);
insert into t1 (a) values (1);
insert into t2 (a) values (1);
delete from m1 where a = (select max(a) from tmp, m2);
insert into t1 (a) values (1);
insert into t2 (a) values (1);
delete from m1 where a = (select max(a) from tmp, t1);
insert into t1 (a) values (1);
insert into t2 (a) values (1);
delete from m1 where a = (select max(a) from tmp, t2);
insert into t1 (a) values (1);
insert into t2 (a) values (1);
delete from m1 where a = (select max(a) from v1);
insert into t1 (a) values (1);
insert into t2 (a) values (1);
delete from m1 where a = (select max(a) from tmp, v1);
insert into t1 (a) values (1);
insert into t2 (a) values (1);
drop view v1;
drop temporary table tmp;
drop table t1, t2, t3, m1, m2;