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MDEV-7001 Bad result for NOT NOT STRCMP('a','b') and NOT NOT NULLIF(2,3)

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The bug is not very important per se, but it was helpful to move
Item_func_strcmp out of Item_bool_func2 (to Item_int_func),
for the purposes of "MDEV-4912 Add a plugin to field types (column types)".
This commit is contained in:
Alexander Barkov
2014-11-02 01:08:09 +04:00
parent 4dec4e1175
commit d1ca1c1fae
7 changed files with 72 additions and 12 deletions
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13
mysql-test/t/null.test
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@ -295,3 +295,16 @@ CREATE TABLE t2 (d DATE) ENGINE=MyISAM;
SELECT * FROM t1,t2 WHERE 1 IS NOT NULL AND t1.b IS NULL;
DROP TABLE t1,t2;
--echo #
--echo # Start of 10.0 tests
--echo #
--echo #
--echo # MDEV-7001 Bad result for NOT NOT STRCMP('a','b') and NOT NOT NULLIF(2,3)
--echo #
SELECT NOT NOT NULLIF(2,3);
--echo #
--echo # End of 10.0 tests
--echo #