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From: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
To: Joe Conway <mail@joeconway.com>
To: Jaime Casanova <jaime.casanova@2ndquadrant.com>
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>
Subject: Re: [HACKERS] Re: [HACKERS] generated columns
Date: Tue, 2 Jan 2018 09:31:04 -0500
Message-ID: <e6aba3fa-9a80-946e-a6d5-844f21a5f711@2ndquadrant.com> (raw)
In-Reply-To: <50425ef7-438b-a613-c784-71e8013d14ce@joeconway.com>
References: <b151f851-4019-bdb1-699e-ebab07d2f40a@2ndquadrant.com>
	<CAJGNTeOxeQPFpEr35PME4yLayRzP_wwzt70kFrPztSTWHf-HDA@mail.gmail.com>
	<CAJGNTeM+MCjA4dBhAdjJ-vR_CwY3u65cCcc+KvnahzLHZjxjbw@mail.gmail.com>
	<1bc948f8-3bab-6c54-50af-c0723a75b85f@2ndquadrant.com>
	<89e86cfd-6d13-fedc-89ed-268c84e7116f@joeconway.com>
	<b5c27634-1d44-feba-7494-ce5a31f914ca@2ndquadrant.com>
	<50425ef7-438b-a613-c784-71e8013d14ce@joeconway.com>

On 12/31/17 12:54, Joe Conway wrote:
> Anyway, I have seen requests for change data capture
> (https://en.wikipedia.org/wiki/Change_data_capture) in Postgres which is
> apparently available in our competition without requiring the use of
> triggers. Perhaps that is yet a different feature, but I was hopeful
> that this mechanism could be used to achieve it.

I think logical decoding provides CDC.  The generated columns feature
doesn't have much to do with that, in my mind.

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




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