Message-ID: <922afef1-430c-e929-2589-ec3190bb11d7@postgresfriends.org>
Date: Wed, 30 Nov 2022 10:09:49 +0100
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Subject: Re: Patch: Global Unique Index
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To: Laurenz Albe <laurenz.albe@cybertec.at>, Cary Huang
 <cary.huang@highgo.ca>, Thomas Kellerer <shammat@gmx.net>
Cc: pgsql-hackers <pgsql-hackers@lists.postgresql.org>
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From: Vik Fearing <vik@postgresfriends.org>
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On 11/29/22 17:29, Laurenz Albe wrote:
> On Tue, 2022-11-29 at 13:58 +0100, Vik Fearing wrote:
>> I disagree.  A user does not need to know that a table is partitionned,
>> and if the user wants a unique constraint on the table then making them
>> type an extra word to get it is just annoying.
> 
> Hmm.  But if I created a primary key without thinking too hard about it,
> only to discover later that dropping old partitions has become a problem,
> I would not be too happy either.

I have not looked at this patch, but my understanding of its design is 
the "global" part of the index just makes sure to check a unique index 
on each partition.  I don't see from that how dropping old partitions 
would be a problem.
-- 
Vik Fearing