Re: Bug in pg_describe_object, patch v2

From: Robert Haas <robertmhaas(at)gmail(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: Andreas Karlsson <andreas(at)proxel(dot)se>, Joel Jacobson <joel(at)gluefinance(dot)com>, Magnus Hagander <magnus(at)hagander(dot)net>, Dimitri Fontaine <dimitri(at)2ndquadrant(dot)fr>, Jim Nasby <jim(at)nasby(dot)net>, Herrera Alvaro <alvherre(at)commandprompt(dot)com>, pgsql-hackers Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: Bug in pg_describe_object, patch v2
Date: 2011-01-15 14:24:07
Message-ID: AANLkTik2fK78Ogy98E+w9+ojtsJaWpi1cSNO32v4bZOA@mail.gmail.com
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On Thu, Jan 13, 2011 at 1:24 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> Robert Haas <robertmhaas(at)gmail(dot)com> writes:
>> On Wed, Jan 12, 2011 at 7:47 PM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>>> IMO, what this patch needs is to not output the types unless they are
>>> actually different from the default (which can be inferred from the AM
>>> type and the function arguments). That would fix my concern about it
>>> emitting information that is 99.44% useless.
>
>> I guess we could do that, but I don't understand how you're supposed
>> to infer them, which means probably a lot of other people won't
>> either.
>
> Read the CREATE OPERATOR CLASS source code.  (It likely would be best to
> refactor that a bit so it would expose some way to obtain the implied
> defaults --- I don't think that's done explicitly now, and it's
> certainly not exported from opclasscmds.c.)

I didn't say I *couldn't* take the time to understand this; I said I
think it'd be more clear to more people if we just printed the types
all the time.

--
Robert Haas
EnterpriseDB: http://www.enterprisedb.com
The Enterprise PostgreSQL Company

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