Re: postgres logs indicate errors with prepared statements, since pgbouncer was installed. - Mailing list pgsql-general

From Greg Sabino Mullane
Subject Re: postgres logs indicate errors with prepared statements, since pgbouncer was installed.
Date
Msg-id 9d84989733a0b4a1d5cc4c2d8113110e@biglumber.com
Whole thread Raw
In response to postgres logs indicate errors with prepared statements, since pgbouncer was installed.  (Chris Barnes <compuguruchrisbarnes@hotmail.com>)
List pgsql-general
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> We are using pgbouncer and seeing these errors in the postgresql logs.
> ...ERROR:  prepared statement "dbdpg_p1573_3968" does not exist
>
> I don't believe pgbouncer allows for server prepared statements,
> so why would I see anything in the logs at all?

Because you are using prepared statements. :) You are probably running pgbouncer
at the "transaction" level, in which case you need to do this inside DBD::Pg
right after the initial connection:

$dbh->{pg_server_prepare} = 0;

This will prevent DBD::Pg from using server-side prepares. There's a small cost
to this, but it's usually overshadowed by the efficiency savings of using
pgbouncer.

- --
Greg Sabino Mullane greg@turnstep.com
End Point Corporation
PGP Key: 0x14964AC8 200911051621
http://biglumber.com/x/web?pk=2529DF6AB8F79407E94445B4BC9B906714964AC8


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