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Re: performance for high-volume log insertion

From: Kris Jurka <books(at)ejurka(dot)com>
To: Scott Marlowe <scott(dot)marlowe(at)gmail(dot)com>
Cc: Thomas Kellerer <spam_eater(at)gmx(dot)net>, pgsql-performance(at)postgresql(dot)org
Subject: Re: performance for high-volume log insertion
Date: 2009-04-27 06:45:08
Message-ID: 49F55474.9030909@ejurka.com (view raw or flat)
Thread:
Lists: pgsql-performance
Scott Marlowe wrote:
> On Sun, Apr 26, 2009 at 11:07 AM, Kris Jurka <books(at)ejurka(dot)com> wrote:
>>
>> As a note for non-JDBC users, the JDBC driver's batch interface allows
>> executing multiple statements in a single network roundtrip.  This is
>> something you can't get in libpq, so beware of this for comparison's sake..
> 
> Really?  I thought that executing statements like so:
> 
> select * from a;insert ...;delete;
> 
> in psql / libpq would execute them all in one trip.

Right, but those aren't prepared.  I suppose it's possible to issue a 
prepare and then issue a batch of comma separated "execute" statements, 
but that's not exactly a natural interface.

Kris Jurka

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