Re: [PERFORM] How to avoid hashjoin and mergejoin

2007-11-08 Thread Carlo Stonebanks
mance@postgresql.org Subject: Re: [PERFORM] How to avoid hashjoin and mergejoin On 11/1/07, Carlo Stonebanks <[EMAIL PROTECTED]> wrote: > I am comparing the same query on two different PG 8.2 servers, one Linux > (8GB RAM) and one Windows (32GB RAM). Both have similar drives and CPU'

Re: [PERFORM] How to avoid hashjoin and mergejoin

2007-11-01 Thread Carlo Stonebanks
:[EMAIL PROTECTED] Sent: November 1, 2007 5:42 PM To: Carlo Stonebanks Cc: pgsql-performance@postgresql.org Subject: Re: [PERFORM] How to avoid hashjoin and mergejoin "Carlo Stonebanks" <[EMAIL PROTECTED]> writes: > Still, the Linux server did not create the same, fast

Re: [PERFORM] How to avoid hashjoin and mergejoin

2007-11-01 Thread Tom Lane
"Carlo Stonebanks" <[EMAIL PROTECTED]> writes: > Still, the Linux server did not create the same, fast plan as the Windows > server. In order to get the same plan we had to: > set enable_hashjoin to 'off'; > set enable_mergejoin to 'off'; This is just about never the appropriate way to solve a p

Re: [PERFORM] How to avoid hashjoin and mergejoin

2007-11-01 Thread Scott Marlowe
On 11/1/07, Carlo Stonebanks <[EMAIL PROTECTED]> wrote: > I am comparing the same query on two different PG 8.2 servers, one Linux > (8GB RAM) and one Windows (32GB RAM). Both have similar drives and CPU's. > > The Windows posgrestsql.config is pretty well tuned but it looks like > someone had wipe

[PERFORM] How to avoid hashjoin and mergejoin

2007-11-01 Thread Carlo Stonebanks
I am comparing the same query on two different PG 8.2 servers, one Linux (8GB RAM) and one Windows (32GB RAM). Both have similar drives and CPU's. The Windows posgrestsql.config is pretty well tuned but it looks like someone had wiped out the Linux config so the default one was re-installed. A