Re: CREATE COLLATION definitional questions for ICU

From: Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-hackers(at)postgreSQL(dot)org
Subject: Re: CREATE COLLATION definitional questions for ICU
Date: 2017-06-27 14:40:51
Message-ID: 61696630-4648-7930-3a8d-6a91914cd222@2ndquadrant.com
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On 6/25/17 11:45, Tom Lane wrote:
> * Should not the FROM code path copy the old collation's version?
> It seems a little bit weird that "cloning" a collation takes the
> liberty of installing a new version.

I think this is working correctly. Specifying the version explicitly is
really only useful for pg_upgrade, because it needs to reproduce the
state that is on disk. When you create a new collation, you want to
work with the collation version that the currently running software
provides.

--
Peter Eisentraut http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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