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Bug#52711 Segfault when doing EXPLAIN SELECT with union...order by (select... where...)

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backport from 5.1


mysql-test/r/subselect.result:
  backport from 5.1
mysql-test/t/subselect.test:
  backport from 5.1
sql/sql_select.cc:
  backport from 5.1
This commit is contained in:
Sergey Glukhov
2010-11-08 13:51:39 +03:00
parent 0a29baba4b
commit 50a3c55ee7
3 changed files with 40 additions and 2 deletions
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16
mysql-test/r/subselect.result
View File

@ -4527,4 +4527,20 @@ pk int_key
3 3
7 3
DROP TABLE t1,t2;
#
# Bug #52711: Segfault when doing EXPLAIN SELECT with
# union...order by (select... where...)
#
CREATE TABLE t1 (a VARCHAR(10), FULLTEXT KEY a (a));
INSERT INTO t1 VALUES (1),(2);
CREATE TABLE t2 (b INT);
INSERT INTO t2 VALUES (1),(2);
# Should not crash
EXPLAIN
SELECT * FROM t2 UNION SELECT * FROM t2
ORDER BY (SELECT * FROM t1 WHERE MATCH(a) AGAINST ('+abc' IN BOOLEAN MODE));
# Should not crash
SELECT * FROM t2 UNION SELECT * FROM t2
ORDER BY (SELECT * FROM t1 WHERE MATCH(a) AGAINST ('+abc' IN BOOLEAN MODE));
DROP TABLE t1,t2;
End of 5.0 tests.

21
mysql-test/t/subselect.test
View File

@ -3506,5 +3506,26 @@ ORDER BY outr.pk;
DROP TABLE t1,t2;
--echo #
--echo # Bug #52711: Segfault when doing EXPLAIN SELECT with
--echo # union...order by (select... where...)
--echo #
CREATE TABLE t1 (a VARCHAR(10), FULLTEXT KEY a (a));
INSERT INTO t1 VALUES (1),(2);
CREATE TABLE t2 (b INT);
INSERT INTO t2 VALUES (1),(2);
--echo # Should not crash
--disable_result_log
EXPLAIN
SELECT * FROM t2 UNION SELECT * FROM t2
ORDER BY (SELECT * FROM t1 WHERE MATCH(a) AGAINST ('+abc' IN BOOLEAN MODE));
--echo # Should not crash
SELECT * FROM t2 UNION SELECT * FROM t2
ORDER BY (SELECT * FROM t1 WHERE MATCH(a) AGAINST ('+abc' IN BOOLEAN MODE));
DROP TABLE t1,t2;
--enable_result_log
--echo End of 5.0 tests.