From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
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To: | Peter Geoghegan <pg(at)heroku(dot)com> |
Cc: | Heikki Linnakangas <hlinnaka(at)iki(dot)fi>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org> |
Subject: | Re: tuplesort_gettuple_common() and *should_free argument |
Date: | 2016-12-08 21:02:05 |
Message-ID: | 7289.1481230925@sss.pgh.pa.us |
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Lists: | pgsql-hackers |
Peter Geoghegan <pg(at)heroku(dot)com> writes:
> On Wed, Dec 7, 2016 at 11:55 PM, Heikki Linnakangas <hlinnaka(at)iki(dot)fi> wrote:
>> Should we be worried about breaking the API of tuplesort_get* functions?
>> They might be used by extensions. I think that's OK, but wanted to bring it
>> up. This would be only for master, of course, and any breakage would be
>> straightforward to fix.
> I don't think so. I'm not aware of any third party extensions that
> call tuplesort.c routines, despite having looked for them. I noticed
> that pg_repack doesn't. For any that do, they'll break in a
> predictable, obvious way.
Adding or subtracting function arguments is something we do all the time.
As long as it's not proposed for back-patch, I don't see a problem.
regards, tom lane
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