| From: | Mark Rae <mrae(at)purplebat(dot)com> |
|---|---|
| To: | Christopher Kings-Lynne <chriskl(at)familyhealth(dot)com(dot)au> |
| Cc: | Brent Henry <bh_pgperf(at)yahoo(dot)com>, Dennis <dennis(at)works4me(dot)com>, Tom Arthurs <tarthurs(at)jobflash(dot)com>, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: General DB Tuning |
| Date: | 2005-07-13 10:07:40 |
| Message-ID: | 20050713100740.GA27912@purplebat.com |
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| Lists: | pgsql-performance |
On Wed, Jul 13, 2005 at 09:52:20AM +0800, Christopher Kings-Lynne wrote:
> The 8.0.2 jdbc driver uses real prepared statements instead of faked
> ones. The problem is the new protocol (that the 8.0.2 driver users) has
> a bug where protocol-prepared queries don't get logged properly.
> I don't know if it's been fixed...
It's not in 8.0.3, but I was having the same problems with DBD::Pg so
I backported some of it and also changed the code so that it listed the
values of the bind parameters, so you get something like
LOG: statement: SELECT sr.name,sr.seq_region_id, sr.length, 1 FROM seq_region sr WHERE sr.name = $1 AND sr.coord_system_id = $2
LOG: binding: "dbdpg_2" with 2 parameters
LOG: bind "dbdpg_2" $1 = "20"
LOG: bind "dbdpg_2" $2 = "1"
LOG: statement: EXECUTE [PREPARE: SELECT sr.name,sr.seq_region_id, sr.length, 1 FROM seq_region sr WHERE sr.name = $1 AND sr.coord_system_id = $2]
LOG: duration: 0.164 ms
I've attached a patch in case anyone finds it useful.
-Mark
| Attachment | Content-Type | Size |
|---|---|---|
| timing.patch | text/plain | 3.8 KB |
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