From: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
---|---|
To: | Thom Brown <thom(at)linux(dot)com> |
Cc: | PGSQL Mailing List <pgsql-general(at)postgresql(dot)org> |
Subject: | Re: System catalog changes between 9.0 beta4 and rc1 |
Date: | 2010-09-02 16:45:47 |
Message-ID: | 25716.1283445947@sss.pgh.pa.us |
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Lists: | pgsql-general |
Thom Brown <thom(at)linux(dot)com> writes:
> I've asked this question on IRC, but unfortunately no answer. Could
> someone tell me what system catalog changes were made between 9.0
> beta4 and RC1?
The CVS (or soon to be git) log for catversion.h is a good place to
look for answers to such questions.
http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/include/catalog/catversion.h
In this case the answer is:
Remove the single-argument form of string_agg(). It added nothing much in
functionality, while creating an ambiguity in usage with ORDER BY that at
least two people have already gotten seriously confused by. Also, add an
opr_sanity test to check that we don't in future violate the newly minted
policy of not having built-in aggregates with the same name and different
numbers of parameters. Per discussion of a complaint from Thom Brown.
regards, tom lane
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