Ow Mun Heng wrote:
> Query2 is way faster mainly because the plan does not choose a seq scan
> on a table w/ >20million rows.
> The only difference between Query 1 and query 2 is that the
> audio_key_dtime is chosen from a table rather than provided on the
> query.
>
> I'm not sure why this is the case and why it chooses such plans.
> (should I be posting to pg-performance?)
Your query plans don't seem to match your queries. That makes it
difficult to provide meaningful advice.
--
Richard Huxton
Archonet Ltd
