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MDEV-4017 - GET_LOCK() with negative timeouts has strange behavior

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GET_LOCK() silently accepted negative values and NULL for timeout.
Fixed GET_LOCK() to issue a warning and return NULL in such cases.
This commit is contained in:
Sergey Vojtovich
2015-07-23 12:50:58 +04:00
parent e40bc65933
commit 392df76bc3
6 changed files with 40 additions and 4 deletions
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5
mysql-test/t/func_misc.test
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@@ -391,6 +391,11 @@ set optimizer_switch=@optimizer_switch_save;
drop view v_merge, vm;
drop table t1,tv;
--echo #
--echo # MDEV-4017 - GET_LOCK() with negative timeouts has strange behavior
--echo #
SELECT GET_LOCK('ul1', NULL);
SELECT GET_LOCK('ul1', -1);
--echo #
--echo # End of 5.5 tests