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Bug#11766126 59166: ANOTHER DATETIME VALGRIND UNINITIALIZED WARNING

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Valgrind warning happens because null values check happens too late
in Item_func_month::val_str(after result string calculation).The fix
is to check null value before result string calculation.


mysql-test/r/func_time.result:
  test case
mysql-test/t/func_time.test:
  test case
sql/item_timefunc.h:
  check null value before result string calculation.
This commit is contained in:
Sergey Glukhov
2011-03-30 11:00:41 +04:00
parent 4e26a41f3e
commit 3b7f044534
3 changed files with 17 additions and 2 deletions
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6
mysql-test/r/func_time.result
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@ -1393,4 +1393,10 @@ SET GLOBAL SQL_MODE=DEFAULT;
SELECT FORMAT(YEAR(STR_TO_DATE('',GET_FORMAT(TIME,''))),1);
FORMAT(YEAR(STR_TO_DATE('',GET_FORMAT(TIME,''))),1)
NULL
#
# Bug#11766126 59166: ANOTHER DATETIME VALGRIND UNINITIALIZED WARNING
#
SELECT CAST((MONTH(FROM_UNIXTIME(@@GLOBAL.SQL_MODE))) AS BINARY(1025));
CAST((MONTH(FROM_UNIXTIME(@@GLOBAL.SQL_MODE))) AS BINARY(1025))
NULL
End of 5.1 tests