Re: psql \set vs \copy - bug or expected behaviour?

Robert Haas <robertmhaas@gmail.com>

From: Robert Haas <robertmhaas@gmail.com>
To: Richard Huxton <dev@archonet.com>
Cc: PostgreSQL Hackers <pgsql-hackers@postgresql.org>
Date: 2011-10-21T21:31:41Z
Lists: pgsql-hackers
On Fri, Oct 21, 2011 at 7:24 AM, Richard Huxton <dev@archonet.com> wrote:
> It looks like \copy is just passing the text of the query unadjusted to
> "COPY". I get a syntax error on ":x" with the \copy below on both 9.0 and
> 9.1
>
> === test script ===
> \set x '''HELLO'''
> -- Works
> \echo :x
> -- Works
> \o '/tmp/test1.txt'
> COPY (SELECT :x) TO STDOUT;
> -- Doesn't work
> \copy (SELECT :x) TO '/tmp/test2.txt'
> === end script ===

I'm not sure whether that's a bug per se, but I can see where a
behavior change might be an improvement.

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