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fixed error handling in SET and DO operators (BUG#1484)

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mysql-test/r/subselect.result:
  test for BUG#1484
mysql-test/t/subselect.test:
  layout fix
  test for BUG#1484
sql/set_var.cc:
  value evaluating can fail (because of subqueries for example) => we should check result of operartion and prevent assigning incorrect value
sql/sql_do.cc:
  DO should ignore all errors
This commit is contained in:
unknown 2003-10-08 11:19:09 +03:00
commit 0f81ecf501
4 changed files with 60 additions and 5 deletions
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14
mysql-test/t/subselect.test
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@ -951,6 +951,7 @@ select s1, s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') from t1;
explain select s1, s1 NOT IN (SELECT s1 FROM t2) from t1;
explain select s1, s1 NOT IN (SELECT s1 FROM t2 WHERE s1 < 'a2') from t1;
drop table t1,t2;
#
# correct ALL optimisation
#
@ -960,8 +961,21 @@ insert into t3 values (6),(7),(3);
select * from t3 where a >= all (select b from t2);
explain select * from t3 where a >= all (select b from t2);
#
# optimized static ALL/ANY with grouping
#
insert into t2 values (2,2), (2,1), (3,3), (3,1);
select * from t3 where a > all (select max(b) from t2 group by a);
explain select * from t3 where a > all (select max(b) from t2 group by a);
drop table if exists t2, t3;
#
# DO and SET with errors
#
create table t1 (s1 int);
insert into t1 values (1);
insert into t1 values (2);
-- error 1241
set sort_buffer_size = (select s1 from t1);
do (select * from t1);
drop table t1;