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Bug#57512 str_to_date crash...

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str_to_date function should only try to generate a warning for
invalid input strings, not when input value is NULL. In latter
case, val_str() of input argument will return a nil pointer.
Trying to generate a warning using this pointer lead to a
segmentation fault. Solution: Only generate warning when pointer
to input string is non-nil.


mysql-test/r/func_time.result:
  Added test case for Bug#57512
mysql-test/t/func_time.test:
  Added test case for Bug#57512
sql/item_timefunc.cc:
  Skip generating warning when pointer to input string is nil
  since this implies that input argument was NULL.
This commit is contained in:
Oystein Grovlen
2010-10-20 15:17:29 +02:00
parent 6ce340789a
commit 7a8515cc20
3 changed files with 18 additions and 1 deletions
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8
mysql-test/t/func_time.test
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@ -842,5 +842,13 @@ INSERT INTO t1 VALUES ('2008-01-03 00:00:00'), ('2008-01-03 00:00:00');
SELECT * FROM t1 WHERE date_date >= subtime(now(), "00:30:00");
SELECT * FROM t1 WHERE date_date <= addtime(date_add("2000-1-1", INTERVAL "1:1:1" HOUR_SECOND), "00:20:00");
DROP TABLE t1;
--echo #
--echo # Bug#57512 str_to_date crash...
--echo #
SELECT WEEK(STR_TO_DATE(NULL,0));
SELECT SUBDATE(STR_TO_DATE(NULL,0), INTERVAL 1 HOUR);
--echo #