78c37b5244
Add fast path for col like '%%' or col like '%' or regexp '\\.*' (1) like about 34% speed up when use count() test support col like '%%' , col like '%', col not like '%%' , col not like '%' (2) regexp about 37% speed up when use count() test support col regexp '\\.', col not regexp '\\.' Q1: select count() From hits where url like '%'; Q2: select count() From hits where url regexp '\\.*';