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authorVarun Gupta <varun.gupta@mariadb.com>2020-05-11 19:56:14 +0530
committerVarun Gupta <varun.gupta@mariadb.com>2020-05-11 20:01:11 +0530
commit3f7e71439f6fb781a6eff0a70dfbf65ba9ef3540 (patch)
treefb151e6dc4a0404178434229129ad3909bf33e20 /mysql-test/t
parent1887b5ae87ac0d1519f95a1e2f59efe09aded98f (diff)
downloadmariadb-git-10.1-mdev22498.tar.gz
MDEV-22498: SIGSEGV in Bitmap<64u>::merge on SELECT10.1-mdev22498
For the case when the optimizer does the IN-EXISTS transformation, the equality condition is injected in the WHERE OR HAVING clause of the subquery. If the select list of the subquery has a reference to the parent select make sure to use the reference and not the original item.
Diffstat (limited to 'mysql-test/t')
-rw-r--r--mysql-test/t/subselect4.test24
1 files changed, 24 insertions, 0 deletions
diff --git a/mysql-test/t/subselect4.test b/mysql-test/t/subselect4.test
index d5a40419185..f0b1d16be7b 100644
--- a/mysql-test/t/subselect4.test
+++ b/mysql-test/t/subselect4.test
@@ -2075,3 +2075,27 @@ insert into t1 values(2,1),(1,2);
select (select c1 from t1 group by c1,c2 order by c1 limit 1) as x;
(select c1 from t1 group by c1,c2 order by c1 limit 1);
drop table t1;
+
+--echo #
+--echo # MDEV-22498: SIGSEGV in Bitmap<64u>::merge on SELECT
+--echo #
+
+set @save_sql_select_limit= @@sql_select_limit;
+SET sql_select_limit=0;
+
+CREATE TABLE t1(b INT, c INT);
+CREATE TABLE t2(a INT, b INT);
+INSERT INTO t1 VALUES (1,1),(2,2),(3,3);
+INSERT INTO t2 VALUES (1,1),(2,2),(3,3);
+
+let $query=
+SELECT sum(a), t2.a, t2.b FROM t2 HAVING t2.a IN (SELECT t2.b FROM t1);
+
+eval EXPLAIN EXTENDED $query;
+eval $query;
+
+SET @@sql_select_limit= @save_sql_select_limit;
+
+eval EXPLAIN EXTENDED $query;
+eval $query;
+DROP TABLE t1,t2;