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Re: Inconsistent Errors on Row Comparisons

From: David Fetter <david(at)fetter(dot)org>
To: "David E(dot) Wheeler" <david(at)kineticode(dot)com>
Cc: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>,pgsql-hackers Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Inconsistent Errors on Row Comparisons
Date: 2009-06-30 22:05:18
Message-ID: 20090630220518.GT21081@fetter.org (view raw or flat)
Thread:
Lists: pgsql-hackers
On Tue, Jun 30, 2009 at 02:01:26PM -0700, David Wheeler wrote:
> On Jun 30, 2009, at 1:40 PM, David Fetter wrote:
>
>>> Yes, that's my ideal, but Tom says I need to write C code to get that
>>> information from RECORD objects, alas. :-(
>>
>> Would this be the first C piece?  If not, it might be worth doing.
>
> I don't understand the question.

I was thinking of this as part of PgTAP.

> But yes, I think it'd be worth doing.  I'd like to have functions
> like:
>
>     pg_record_attrs(RECORD) RETURNS SETOF regtype[]
>
> And maybe another function to return attribute names. If it could  
> returns both names and types, that'd be cool, but I'm not sure what kind 
> of data type that would be.

It's possible to have it return SETOF RECORD with OUT parameters, I
think.

> Does this sound interesting to other folks?

Sure.  Maybe that should go in pg_catalog in 8.5...

Cheers,
David.
-- 
David Fetter <david(at)fetter(dot)org> http://fetter.org/
Phone: +1 415 235 3778  AIM: dfetter666  Yahoo!: dfetter
Skype: davidfetter      XMPP: david(dot)fetter(at)gmail(dot)com

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