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Merge branch '5.5' into 10.0

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Sergei Golubchik
2018-03-23 11:44:29 +01:00
parent 0492100059 ddc5c65333
commit a2e47f8c41
13 changed files with 146 additions and 6 deletions
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11
mysql-test/r/subselect4.result
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@ -2485,5 +2485,16 @@ FROM t2 WHERE b <= 'quux' GROUP BY field;
field COUNT(DISTINCT c)
0 1
drop table t1,t2;
#
# MDEV-15555: select from DUAL where false yielding wrong result when in a IN
#
explain
SELECT 2 IN (SELECT 2 from DUAL WHERE 1 != 1);
id select_type table type possible_keys key key_len ref rows Extra
1 PRIMARY NULL NULL NULL NULL NULL NULL NULL No tables used
2 SUBQUERY NULL NULL NULL NULL NULL NULL NULL Impossible WHERE
SELECT 2 IN (SELECT 2 from DUAL WHERE 1 != 1);
2 IN (SELECT 2 from DUAL WHERE 1 != 1)
0
SET optimizer_switch= @@global.optimizer_switch;
set @@tmp_table_size= @@global.tmp_table_size;