WIP Join Removal

From: Simon Riggs <simon(at)2ndQuadrant(dot)com>
To: List pgsql-patches <pgsql-patches(at)postgresql(dot)org>
Subject: WIP Join Removal
Date: 2008-08-31 09:52:52
Message-ID: 1220176372.4371.118.camel@ebony.2ndQuadrant
Views: Raw Message | Whole Thread | Download mbox | Resend email
Lists: pgsql-patches

As discussed on 26 June, "Join Removal/Vertical Partitioning", here's a
patch to remove joins in certain circumstances.

Tested and blind reviewed, but this is complex and subtle enough I
welcome and expect your comments on corner cases and missed
complications. (Lord knows, I've been down a few blind alleys writing it
to date...)

Patch works, but there's a bit I haven't finished yet - checking unique
indexes. So patch is marked WIP for now. Depending upon how long
commitfest lasts I may have a fully working version. (Yes, I know its
only 1 hours work, but haven't worked out how yet...)

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

Attachment Content-Type Size
join_removal.v4.patch text/x-patch 4.0 KB


Browse pgsql-patches by date

  From Date Subject
Next Message Simon Riggs 2008-08-31 20:04:34 Re: [HACKERS] Infrastructure changes for recovery
Previous Message Simon Riggs 2008-08-31 09:27:47 rmgr hooks and contrib/rmgr_hook