Brian Tarbox kirjutas R, 04.07.2003 kell 15:27: > I recently took a system from MySQL to Postgres. Same HW, SW, same data. > The major operations where moderately complex queries (joins on 8 tables). > The results we got was that Postgres was fully 3 times slower than MySql.
For each and every query ?? > We were on this list a fair bit looking for answers and tried all the > standard answers. Could you post the list of "standard answers" you tried ? > It was still much much much slower. Was this with InnoDB ? what kind of joins were they (i.e "FROM a JOIN b on a.i=b.i" or "FROM a,b WHERE a.i = b.i" ? What was the ratio of planning time to actual execution time in pgsql? Where the queries originally optimized for MySQL ? ---------------- Hannu ---------------------------(end of broadcast)--------------------------- TIP 8: explain analyze is your friend
