Ow Mun Heng wrote:
On Wed, 2007-10-17 at 20:37 +0100, Richard Huxton wrote:
Your query plans don't seem to match your queries. That makes it
difficult to provide meaningful advice.
Well, then that makes both you and me(both) stumped. because the 2
queries are exactly the same except for the
On Thu, 2007-10-18 at 07:28 +0100, Richard Huxton wrote:
Ow Mun Heng wrote:
On Wed, 2007-10-17 at 20:37 +0100, Richard Huxton wrote:
Your query plans don't seem to match your queries. That makes it
difficult to provide meaningful advice.
Well, then that makes both you and me(both)
Ow Mun Heng wrote:
On Wed, 2007-10-17 at 22:47 -0300, Alvaro Herrera wrote:
Ow Mun Heng wrote:
Index Cond: ((audit_key_dtime = $0) AND (audit_key_dtime $1))
Index Cond: ((audit_key_dtime = '2007-08-08 18:00:00'::timestamp without
time zone)
AND
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
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
On Wed, 2007-10-17 at 20:37 +0100, Richard Huxton wrote:
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
Ow Mun Heng wrote:
Index Cond: ((audit_key_dtime = $0) AND (audit_key_dtime $1))
Index Cond: ((audit_key_dtime = '2007-08-08 18:00:00'::timestamp without
time zone)
AND (audit_key_dtime '2007-08-08 18:01:00'::timestamp without
time zone))
This is _the_ only difference
On Wed, 2007-10-17 at 22:47 -0300, Alvaro Herrera wrote:
Ow Mun Heng wrote:
Index Cond: ((audit_key_dtime = $0) AND (audit_key_dtime $1))
Index Cond: ((audit_key_dtime = '2007-08-08 18:00:00'::timestamp without
time zone)
AND (audit_key_dtime '2007-08-08
