Re: Proposal: add error message in backend/catalog/index.c

Peter Eisentraut <peter.eisentraut@2ndquadrant.com>

From: Peter Eisentraut <peter.eisentraut@2ndquadrant.com>
To: Ioseph Kim <pgsql-kr@postgresql.kr>, "pgsql-hackers@postgresql.org" <pgsql-hackers@postgresql.org>
Date: 2016-12-19T21:37:33Z
Lists: pgsql-hackers
On 12/13/16 1:15 AM, Ioseph Kim wrote:
> I propose to append an error message when index name and table name are
> same.
> 
> 
> example:
> 
> postgres@postgres=# create table t (a int not null, constraint t primary
> key (a));
> ERROR:  relation "t" already exists

The code to detect that would probably be fairly complicated for such a
rare case.

A more principled approach might be to create an error context for the
index creation so that you can tell what is going on when the error happens.

-- 
Peter Eisentraut              http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services