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Date: Thu, 13 Sep 2018 10:22:36 +0200
From: Christoph Berg <myon@debian.org>
To: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
Cc: Thomas Munro <thomas.munro@enterprisedb.com>,
	Pg Hackers <pgsql-hackers@postgresql.org>
Subject: Re: Collation versioning
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Re: Peter Eisentraut 2018-09-13 <4f60612c-a7b5-092d-1532-21ff7a106bd5@2ndquadrant.com>
> Moreover, the fix for a collation version mismatch is, in the simplest
> case, to go around and REINDEX everything.  Making the collation or
> collation version global doesn't fix that.  It would actually make it
> harder because you couldn't run ALTER COLLATION REFRESH VERSION until
> after you have rebuilt all affected objects *in all databases*.

Btw, I think a "reindexdb --all --collation" (and the SQL per-database
equivalent) that only rebuilds indexes that are affected by collations
would be immensely useful to have.

Christoph