Re: Hot Standby and VACUUM FULL
Simon Riggs <simon@2ndquadrant.com>
From: Simon Riggs <simon@2ndQuadrant.com>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: pgsql-hackers@postgresql.org
Date: 2010-01-31T20:40:07Z
Lists: pgsql-hackers
On Sun, 2010-01-31 at 15:14 -0500, Tom Lane wrote: > If the only benefit of getting rid of VACUUM FULL were simplifying > Hot Standby, I'd agree with you. But there are numerous other benefits. > The double-commit hack you mention is something we need to get rid of > for general system stability (because of the risk of PANIC if the vacuum > fails after the first commit). Getting rid of REINDEX-in-place on > shared catalog indexes is another thing that's really safety critical. > Removing V-F related hacks in other places would just be a bonus. I should've agreed with this in my last post, cos I do. I want very, very much to get rid of VACUUM FULL just because it's such a sump of ugly, complex code. But there is a limit to how and when performs what I now see is a more major surgical operation. -- Simon Riggs www.2ndQuadrant.com