25 May
2013
25 May
'13
1:39 a.m.
sorry, found the problem... i tested the query select * from test.a where a =2 and b in(select a as a from test.a)union select * from test.a where a =2 and b in(select a as a from test.a) but it was not cached, i put the SQL_CACHE and i found it in query cache =] very nice =)