Re: Query Planner Filtering Of Specified Value From 'On Distinct' Clause

From: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
To: Alex Satrapa <alex(at)lintelsys(dot)com(dot)au>
Cc: PostgreSQL General <pgsql-general(at)postgresql(dot)org>
Subject: Re: Query Planner Filtering Of Specified Value From 'On Distinct' Clause
Date: 2003-11-19 01:32:59
Message-ID: 23046.1069205579@sss.pgh.pa.us
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-general

Alex Satrapa <alex(at)lintelsys(dot)com(dot)au> writes:
> Is there any reason why it would not be sensible to push the filter down
> to just after the first sequential scan of source?

Try 7.4 ...

regards, tom lane

In response to

Browse pgsql-general by date

  From Date Subject
Next Message Doug McNaught 2003-11-19 02:25:55 Re: performance problem
Previous Message Martin Hampl 2003-11-19 01:17:27 Re: indexing with lower(...) -> queries are not optimised very well