Re: [HACKERS] Re: [PATCHES] Changes to sequence.c - Mailing list pgsql-hackers

From Vadim B. Mikheev
Subject Re: [HACKERS] Re: [PATCHES] Changes to sequence.c
Date
Msg-id 34FFEE9E.18EA5CDF@sable.krasnoyarsk.su
Whole thread Raw
In response to Re: [HACKERS] Re: [PATCHES] Changes to sequence.c  ("Billy G. Allie" <Bill.Allie@mug.org>)
List pgsql-hackers
Billy G. Allie wrote:
>
> Vadim B. Mikheev wrote:
> >Billy G. Allie wrote:
> >>
> >> I encountered a problem (bug? feature?) where "select currval('sequence')"
> >> will generate an error if "select nextval('sequence')" is not executed
> first.
> >
> >This is feature :)
> >1. This is what Oracle does.
> >2. currval () is described as returning value returned by
> >   last nextval() in _session_.
> >
> >Vadim
> >
> Does this mean we should not modify this behavior because "this is what Oracle
> does"?  I can envision where using currval() before nextval() can be useful.

Actually, what you are proposing was initial behaviour of currval().
This was changed to be more consistent with 1. & 2. (note - not only 1.,
but 2. also).

But personally I haven't objection against changing this again.
Men, vote pls!

Vadim

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