| From: | Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>, zam6ak(at)gmail(dot)com, Peter Eisentraut <peter(dot)eisentraut(at)2ndquadrant(dot)com>, "pgsql-bugs(at)postgresql(dot)org" <pgsql-bugs(at)postgresql(dot)org> |
| Subject: | Re: BUG #14813: pg_get_serial_sequence does not return seqence name for IDENTITY columns |
| Date: | 2017-09-13 13:25:03 |
| Message-ID: | 20170913132503.jtwdcomwnteldjvt@alvherre.pgsql |
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| Thread: | |
| Lists: | pgsql-bugs |
Tom Lane wrote:
> "David G. Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com> writes:
> > I suspect this is an opportunity for documentation enhancement as opposed
> > to a bug.
>
> The reason appears to be that the dependency setup for a sequence created
> to support IDENTITY is randomly different from that for a serial sequence.
> I'm not sure this is a good thing.
It would be bad to break queries all over the internet that assume that
sequences for columns can be found using pg_get_serial_sequence, so I
agree this should be fixed.
--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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