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Set new default values for the optimizer switch flags 'derived_merge'

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and 'derived_with_keys'. Now they are set on by default.
This commit is contained in:
Igor Babaev
2011-11-26 14:23:00 -08:00
parent d84ea521c5
commit 17b4e4a194
49 changed files with 208 additions and 21 deletions
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3
mysql-test/include/index_merge1.inc
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@ -264,7 +264,10 @@ explain select * from t1 where key1=3 or key2=4
union select * from t1 where key1<4 or key3=5;
# index merge in subselect
set @tmp_optimizer_switch=@@optimizer_switch;
set optimizer_switch='derived_merge=off,derived_with_keys=off';
explain select * from (select * from t1 where key1 = 3 or key2 =3) as Z where key8 >5;
set optimizer_switch=@tmp_optimizer_switch;
# 12. check for long index_merges.
create table t3 like t0;