Re: WIP patch: convert SQL-language functions to return tuplestores

From: Simon Riggs <simon(at)2ndQuadrant(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-hackers(at)postgreSQL(dot)org
Subject: Re: WIP patch: convert SQL-language functions to return tuplestores
Date: 2008-10-28 10:50:09
Message-ID: 1225191009.3971.130.camel@ebony.2ndQuadrant
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers


On Sun, 2008-10-26 at 21:49 -0400, Tom Lane wrote:
> So I'm concluding that we can easily afford to switch to
> tuplestore-always operation, especially if we are willing to put any
> effort into tuplestore optimization. (I note that the current
> tuplestore code writes 24 bytes per row for this example, which is a
> shade on the high side for only 4 bytes payload. It looks like it
> would be pretty easy to knock 10 bytes off that for a 40% savings in
> I/O volume.)

That seems like an important, possibly more important, change.

--
Simon Riggs www.2ndQuadrant.com
PostgreSQL Training, Services and Support

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Gregory Stark 2008-10-28 10:50:59 Re: Proposal of PITR performance improvement for 8.4.
Previous Message Gregory Stark 2008-10-28 10:23:34 Re: WIP patch: convert SQL-language functions to return tuplestores