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Bug #30832: Assertion + crash with select name_const('test', now());

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The NAME_CONST function is required to work correctly with constants only.
When executed with functions that return types other than those returned by
Item::field_type (string, int, decimal, or real), the result gets cast to
one of those types. This cannot happen for constants.
Fixed by only allowing constants as arguments to NAME_CONST.
This commit is contained in:
mhansson/martin@linux-st28.site
2007-09-28 18:05:23 +02:00
parent 0aa6e95768
commit 397da9d9b7
3 changed files with 32 additions and 0 deletions
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14
mysql-test/t/func_misc.test
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@ -189,4 +189,18 @@ drop table table_26093;
drop function func_26093_a;
drop function func_26093_b;
#
# Bug #30832: Assertion + crash with select name_const('test',now());
#
--error ER_WRONG_ARGUMENTS
SELECT NAME_CONST('test', NOW());
--error ER_WRONG_ARGUMENTS
SELECT NAME_CONST('test', UPPER('test'));
SELECT NAME_CONST('test', NULL);
SELECT NAME_CONST('test', 1);
SELECT NAME_CONST('test', 1.0);
SELECT NAME_CONST('test', 'test');
--echo End of 5.0 tests