Владимир-3 wrote
> It seems my quite complex query runs 10 times faster on "some_column
> LIKE '%test_1' " vs "some_column LIKE 'test_1' "
> So I just add "%" to the pattern...
Keep in mind then LIKE '%test_1' and LIKE 'test_1' are not equivalent, using
the % as a prefix to the argument means that the scan only has to confirm
that the value ends in 'test_1' where forgoing the % entirely means that you
are essentially saying some_column='test_1'.
--
View this message in context: http://postgresql.nabble.com/LIKE-pattern-tp5902225p5902701.html
Sent from the PostgreSQL - performance mailing list archive at Nabble.com.