Re: [PERFORM] Query that took a lot of time in Postgresql when not using trim in order by

2015-11-25 Thread Blas Pico
My database version is 9.3 but I have test with 9.4 too with the same result, and I have test changing that parameter without success. I want to know what does have to do the trim with the different query plans? 2015-11-25 13:35 GMT-03:00 Evgeniy Shishkin : > > What is your Postgres version? > >

[PERFORM] Query that took a lot of time in Postgresql when not using trim in order by

2015-11-25 Thread Blas Pico
I have a query that produce a different query plan if I put a trim in one of the columns in the order by. When i put the trim in any column it use hashaggregate and took 3 seconds against 30 when not. Is wear because the columns is clean not need to be trimmed, I have check that. The problem