Re: default parameters for built-in functions (was Re: Documentation Update: Document pg_start_backup checkpoint behavior)

From: Alvaro Herrera <alvherre(at)commandprompt(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: pgsql-hackers(at)postgreSQL(dot)org
Subject: Re: default parameters for built-in functions (was Re: Documentation Update: Document pg_start_backup checkpoint behavior)
Date: 2009-04-06 23:28:56
Message-ID: 20090406232856.GN4525@alvh.no-ip.org
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

Tom Lane wrote:

> The only alternative that comes to mind is
> to have initdb issue an additional SQL command to establish the default
> after the bootstrap phase; that is, something like
>
> CREATE OR REPLACE FUNCTION
> pg_start_backup(label text, fast boolean DEFAULT false)
> RETURNS text LANGUAGE internal STRICT AS 'start_backup';
>
> in system_views.sql or some such place.

I think it's worth having this, perhaps as a new SQL file to be called
by initdb. I'm sure we can come up with new system functions for which
it's going to be useful to have default values.

--
Alvaro Herrera http://www.CommandPrompt.com/
PostgreSQL Replication, Consulting, Custom Development, 24x7 support

In response to

Responses

Browse pgsql-hackers by date

  From Date Subject
Next Message Tom Lane 2009-04-06 23:31:49 Re: unchecked out of memory in postmaster.c
Previous Message Tom Lane 2009-04-06 23:24:16 default parameters for built-in functions (was Re: Documentation Update: Document pg_start_backup checkpoint behavior)