Horton

Re: Bug in pg_describe_object, patch v2

Dimitri Fontaine <dimitri@2ndquadrant.fr>

View thread
From: Dimitri Fontaine <dimitri@2ndQuadrant.fr>
To: Tom Lane <tgl@sss.pgh.pa.us>
Cc: Joel Jacobson <joel@gluefinance.com>, Andreas Karlsson <andreas@proxel.se>, Robert Haas <robertmhaas@gmail.com>, Magnus Hagander <magnus@hagander.net>, Dimitri Fontaine <dimitri@2ndquadrant.fr>, Jim Nasby <jim@nasby.net>, Herrera Alvaro <alvherre@commandprompt.com>, pgsql-hackers Hackers <pgsql-hackers@postgresql.org>
Date: 2011-01-17T21:07:45Z
Lists: pgsql-hackers

Commits

Same data as JSON: GET /api/v1/messages/:b64id/commits the thread's linked commits as JSON, with link sources. API reference →

  1. Add pg_describe_object function

Tom Lane <tgl@sss.pgh.pa.us> writes:

> Joel Jacobson <joel@gluefinance.com> writes:
>> a) pg_describe_object should always include the schema in the name,
>> even for object in public and pg_catalog.
>
> I knew you were going to demand that next, as soon as you figured out
> that it was an obstacle for using pg_describe_object output as a
> globally unique identifier.  But I'm going to reply, once again, that
> pg_describe_object is not meant to guarantee that and we're not going to
> make it so.

And it's easy to pretend it's already coded this way if you're motivated
enough.  Just find a schema name that's not already existing:

dim=# set search_path to public, utils;
SET
dim=# select pg_describe_object('pg_proc'::regclass, 16602, 0);
                      pg_describe_object                       
---------------------------------------------------------------
 function unaccent_lexize(internal,internal,internal,internal)
(1 row)

dim=# begin; create schema dummy; set local search_path to 'dummy'; select pg_describe_object('pg_proc'::regclass, 16602, 0); rollback;
BEGIN
CREATE SCHEMA
SET
                         pg_describe_object                          
---------------------------------------------------------------------
 function utils.unaccent_lexize(internal,internal,internal,internal)
(1 row)

ROLLBACK

Regards,
-- 
Dimitri Fontaine
http://2ndQuadrant.fr     PostgreSQL : Expertise, Formation et Support