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MDEV-5284 Assertion `!(*expr)->fixed' fails in replace_where_subcondition with IN suquery

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This commit is contained in:
Sergei Golubchik 2013-11-13 12:43:39 +01:00
parent 441192bfb0
commit b468cd4749
3 changed files with 19 additions and 4 deletions
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7
mysql-test/r/subselect_debug.result
View File

@ -11,3 +11,10 @@ REVERSE(EXISTS(SELECT RAND() FROM t1))
0
SET GLOBAL debug=@orig_debug;
DROP TABLE t1;
create table t1 (i int);
insert into t1 values (1),(2);
select * from t1 where (i < 200 or i = 300) and i in (select i from t1);
i
1
2
drop table t1;

10
mysql-test/t/subselect_debug.test
View File

@ -15,3 +15,13 @@ SELECT SUM(EXISTS(SELECT RAND() FROM t1)) FROM t1;
SELECT REVERSE(EXISTS(SELECT RAND() FROM t1));
SET GLOBAL debug=@orig_debug;
DROP TABLE t1;
#
# MDEV-5284 Assertion `!(*expr)->fixed' fails in replace_where_subcondition with IN suquery
#
create table t1 (i int);
insert into t1 values (1),(2);
select * from t1 where (i < 200 or i = 300) and i in (select i from t1);
drop table t1;

6
sql/opt_subselect.cc
View File

@ -420,9 +420,7 @@ Currently, solution #2 is implemented.
static
bool subquery_types_allow_materialization(Item_in_subselect *in_subs);
static bool replace_where_subcondition(JOIN *join, Item **expr,
Item *old_cond, Item *new_cond,
bool do_fix_fields);
static bool replace_where_subcondition(JOIN *, Item **, Item *, Item *, bool);
static int subq_sj_candidate_cmp(Item_in_subselect* el1, Item_in_subselect* el2,
void *arg);
static bool convert_subq_to_sj(JOIN *parent_join, Item_in_subselect *subq_pred);
@ -1293,7 +1291,7 @@ static bool replace_where_subcondition(JOIN *join, Item **expr,
}
else if (item->type() == Item::COND_ITEM)
{
DBUG_ASSERT(!(*expr)->fixed);
DBUG_ASSERT(!do_fix_fields || !(*expr)->fixed);
replace_where_subcondition(join, li.ref(),
old_cond, new_cond,
do_fix_fields);