Horton

Re: Bitmap Indexes: request for feedback

Tom Lane <tgl@sss.pgh.pa.us>

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From: Tom Lane <tgl@sss.pgh.pa.us>
To: Simon Riggs <simon@2ndQuadrant.com>
Cc: Gregory Stark <stark@enterprisedb.com>, josh@agliodbs.com, pgsql-hackers@postgresql.org, Gianni Ciolli <gianni.ciolli@2ndquadrant.it>, Gabriele Bartolini <gabriele.bartolini@2ndquadrant.it>
Date: 2008-10-22T12:31:43Z
Lists: pgsql-hackers 
Simon Riggs <simon@2ndQuadrant.com> writes:
> On Wed, 2008-10-22 at 00:00 +0100, Gregory Stark wrote:
>> When we last left our heros they were proposing ways to refactor the index api
>> to allow index ams to stream results to the executor in bitmap form.

> The indexAM API has now been changed, so that is a simple matter now.

No, that was merely one component of the problem.  The APIs for
tidbitmaps need revision too.  You can't "stream" a bitmap yet.

			regards, tom lane