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Re: INSERT times - same storage space but more fields -> much slower inserts

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From:	Stephen Frost
Subject:	Re: INSERT times - same storage space but more fields -> much slower inserts
Date:	April 14, 2009 , 16:22:27
Msg-id:	20090414161534.GM8123@tamriel.snowman.net (view: Whole thread, Raw)
In response to:	Re: INSERT times - same storage space but more fields -> much slower inserts (Matthew Wakeling)
Responses:	Re: INSERT times - same storage space but more fields -> much slower inserts (Craig Ringer)
List:	pgsql-performance

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INSERT times - same storage space but more fields -> much slower inserts (Craig Ringer, 14 April 2009, 07:57:27 )
Re: INSERT times - same storage space but more fields -> much slower inserts (Stephen Frost, 14 April 2009, 15:57:50 )
Re: INSERT times - same storage space but more fields -> much slower inserts (Matthew Wakeling, 14 April 2009, 16:01:39 )
Re: INSERT times - same storage space but more fields -> much slower inserts (Stephen Frost, 14 April 2009, 16:22:27 )
Re: INSERT times - same storage space but more fields -> much slower inserts (Craig Ringer, 15 April 2009, 00:31:54 )
Re: INSERT times - same storage space but more fields -> much slower inserts (Tom Lane, 15 April 2009, 00:44:39 )
Re: INSERT times - same storage space but more fields -> much slower inserts (Stephen Frost, 15 April 2009, 01:01:51 )
Re: INSERT times - same storage space but more fields -> much slower inserts (Matthew Wakeling, 15 April 2009, 11:50:58 )
Re: INSERT times - same storage space but more fields -> much slower inserts (Matthew Wakeling, 15 April 2009, 11:58:04 )

* Matthew Wakeling () wrote:
> On Tue, 14 Apr 2009, Stephen Frost wrote:
>> Bacula should be using COPY for the batch data loads, so hopefully won't
>> suffer too much from having the fields split out.  I think it would be
>> interesting to try doing PQexecPrepared with binary-format data instead
>> of using COPY though.  I'd be happy to help you implement a test setup
>> for doing that, if you'd like.
>
> You can always do binary-format COPY.

I've never played with binary-format COPY actually.  I'd be happy to
help test that too though.

    Thanks,

        Stephen

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From: Stephen Frost
Date: 14 April 2009, 10:22:27
Subject: Re: INSERT times - same storage space but more fields -> much slower inserts

From: Craig Ringer
Date: 14 April 2009, 18:31:54
Subject: Re: INSERT times - same storage space but more fields -> much slower inserts