Re: [PERFORM] Why is PostgreSQL so slow on Windows ( Postgres 8.3.7) version

2009-08-03 Thread Marc Cousin
The few 'obvious' things I see : ID and POLLID aren't of the same type (numeric vs bigint) TTIME isn't indexed. And as a general matter, you should stick to native datatypes if you don't need numeric. But as said in the other answer, maybe you should redo this schema and use more consistent d

Re: [PERFORM] Why is PostgreSQL so slow on Windows ( Postgres 8.3.7) version

2009-08-03 Thread Grzegorz Jaśkiewicz
how about normalizing the schema for start ? by the looks of it, you have huge table,with plenty of varchars, that smells like bad design of db. -- Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/p

Re: [PERFORM] Why is PostgreSQL so slow on Windows ( Postgres 8.3.7) version

2009-08-02 Thread Euler Taveira de Oliveira
parimala escreveu: [Don't repeat your answer. It's a PITA to receive multiple identical copies] > We are using Postgres 8.3.7 in our java application. We are doing > performances tuning and load testing in our setup. we have noticed that > ,some of our queries to the database taking long time to

Re: [PERFORM] Why is PostgreSQL so slow on Windows ( Postgres 8.3.7) version

2009-08-02 Thread PFC
,some of our queries to the database taking long time to return the results. fsync: off (even we tested this parameter is on ,we observed the same slowness ) If your queries take long time to return results, I suppose you are talking about SELECTs. fsync = off will not make SELECT