Re: BRIN indexes - TRAP: BadArgument

From: Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>
To: Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
Cc: David Rowley <dgrowleyml(at)gmail(dot)com>, Jeff Janes <jeff(dot)janes(at)gmail(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Heikki Linnakangas <hlinnakangas(at)vmware(dot)com>, Erik Rijkers <er(at)xs4all(dot)nl>, Emanuel Calvo <3manuek(at)esdebian(dot)org>, Simon Riggs <simon(at)2ndquadrant(dot)com>, Nicolas Barbier <nicolas(dot)barbier(at)gmail(dot)com>, Claudio Freire <klaussfreire(at)gmail(dot)com>, Josh Berkus <josh(at)agliodbs(dot)com>, Andres Freund <andres(at)2ndquadrant(dot)com>, Pg Hackers <pgsql-hackers(at)postgresql(dot)org>
Subject: Re: BRIN indexes - TRAP: BadArgument
Date: 2014-11-08 03:27:14
Message-ID: 20141108032714.GX1791@alvin.alvh.no-ip.org
Views: Raw Message | Whole Thread | Download mbox | Resend email
Thread:
Lists: pgsql-hackers

Tom Lane wrote:
> David Rowley <dgrowleyml(at)gmail(dot)com> writes:
> > I'm having problems getting this to compile on MSVC. Attached is a patch
> > which fixes the problem.
>
> The committed code is completely broken on compilers that don't accept
> varargs macros, and this patch will not make them happier.

I tried to make it fire only on GCC, which is known to support variadic
macros, but I evidently failed.

> Probably what needs to happen is to put extra parentheses into the call
> sites, along the lines of
>
> #ifdef BRIN_DEBUG
> #define BRIN_elog(args) elog args
> #else
> #define BRIN_elog(args) ((void) 0)
> #endif
>
>
> BRIN_elog((LOG, "fmt", ...));

That works for me, thanks for the suggestion.

> Or we could decide we don't need this debugging crud anymore and just
> nuke it all.

I'm removing one which seems pointless, but keeping the others for now.
We can always remove them later. (I also left BRIN_DEBUG turned on by
default; I'm turning it off.)

--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services

In response to

Browse pgsql-hackers by date

  From Date Subject
Next Message Tom Lane 2014-11-08 04:27:56 Re: row_to_json bug with index only scans: empty keys!
Previous Message Robert Haas 2014-11-08 02:49:41 Re: [PATCH] HINT: pg_hba.conf changed since last config reload