Re: default parameters for built-in functions

From: Peter Eisentraut <peter_e(at)gmx(dot)net>
To: pgsql-hackers(at)postgresql(dot)org
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>, Gregory Stark <stark(at)enterprisedb(dot)com>
Subject: Re: default parameters for built-in functions
Date: 2009-04-08 23:13:53
Message-ID: 200904090213.55161.peter_e@gmx.net
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On Tuesday 07 April 2009 03:36:43 Tom Lane wrote:
> You won't get far with doing it to pg_proc: internal functions *have to*
> have entries in there, else the fmgrtab infrastructure for them doesn't
> get created. (Yeah, I suppose there are other ways to drive that, but
> the fact remains that they need more than just a SQL command.)

What is the purpose of fmgrtab anyway? Is it speed (how much) or some
bootstrapping issue (in which case converting "most" as proposed by Greg would
still work)?

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