Re: identity columns

From: Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>
To: Vitaly Burovoy <vitaly(dot)burovoy(at)gmail(dot)com>
Cc: pgsql-hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: identity columns
Date: 2017-03-29 17:40:29
Message-ID: 4b1d703f-818f-00bf-4169-3279af377f3d@2ndquadrant.com
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On 3/24/17 05:29, Vitaly Burovoy wrote:
> It would be great if "DROP IDENTITY IF EXISTS" is in the current patch
> since we don't have any disagreements about "DROP IDENTITY" behavior
> and easiness of implementation of "IF EXISTS" there.

Here is an updated patch that adds DROP IDENTITY IF EXISTS.

Unfortunately, implementing ADD IF NOT EXISTS is much harder, so I
haven't done that here.

Additionally, this patch fixes a few minor issues that you had pointed
out, and merges with the new expression evaluation system in the executor.

I have also CC'ed you on a separate patch to improve the behavior when
changing a sequence's data type.

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

Attachment Content-Type Size
v6-0001-Identity-columns.patch invalid/octet-stream 149.5 KB

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