From: | Bruce Momjian <bruce(at)momjian(dot)us> |
---|---|
To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Cc: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, PostgreSQL-development <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: pg_upgrade problem with invalid indexes |
Date: | 2012-12-07 01:16:36 |
Message-ID: | 20121207011636.GP30893@momjian.us |
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Lists: | pgsql-hackers |
On Thu, Dec 6, 2012 at 07:53:57PM -0500, Tom Lane wrote:
> Bruce Momjian <bruce(at)momjian(dot)us> writes:
> > Yes, I thought of not dumping it. The problem is that we don't delete
> > the index when it fails, so I assumed we didn't want to lose the index
> > creation information. I need to understand why we did that.
>
> Because CREATE INDEX CONCURRENTLY can't drop the index if it's already
> failed. It's not because we want to do that, it's an implementation
> restriction of the horrid kluge that is CREATE/DROP INDEX CONCURRENTLY.
Well, what is the logic that pg_dump dumps it then, even in
non-binary-upgrade mode?
--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com
+ It's impossible for everything to be true. +
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