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Bug#11766212 59270: NOT IN (YEAR( ... ), ... ) PRODUCES MANY VALGRIND WARNINGS

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Valgrind warning happens due to early null values check
in Item_func_in::fix_length_and_dec(before item evaluation).
As result null value items with uninitialized values are
placed into array and it leads to valgrind warnings during
value array sorting.
The fix is to check null value after item evaluation, item
is evaluated in in_array::set() method.


mysql-test/r/func_in.result:
  test case
mysql-test/t/func_in.test:
  test case
sql/item_cmpfunc.cc:
  The fix is to check null value after item evaluation.
This commit is contained in:
Sergey Glukhov
2011-04-12 13:51:36 +04:00
parent e108b3f69e
commit 33c2a5e7e3
3 changed files with 17 additions and 7 deletions
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6
mysql-test/r/func_in.result
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@ -770,4 +770,10 @@ CASE a WHEN a THEN a END
NULL
DROP TABLE t1;
#
# Bug #11766212 59270: NOT IN (YEAR( ... ), ... ) PRODUCES MANY VALGRIND WARNINGS
#
SELECT 1 IN (YEAR(FROM_UNIXTIME(NULL)) ,1);
1 IN (YEAR(FROM_UNIXTIME(NULL)) ,1)
1
#
End of 5.1 tests