Re: Multiple sorts in a query - Mailing list pgsql-hackers

From Simon Riggs
Subject Re: Multiple sorts in a query
Date
Msg-id 1242807365.27960.45.camel@ebony.2ndQuadrant
Whole thread Raw
In response to Re: Multiple sorts in a query  (Greg Stark <greg.stark@enterprisedb.com>)
List pgsql-hackers
On Tue, 2009-05-19 at 16:49 -0400, Greg Stark wrote:

> Well I'm just saying if you realloc a x kilobyte block into a 2x block  
> and the allocator can't expand it and has to copy then it seems  
> inevitable.

OK, understood.

So there is grounds at least for an investigation into how that works
and whether it is as inefficient as we think it might be.

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



pgsql-hackers by date:

Previous
From: Simon Riggs
Date:
Subject: Re: Multiple sorts in a query
Next
From: Andres Freund
Date:
Subject: Re: Multiple sorts in a query