| From: | Alvaro Herrera <alvherre(at)commandprompt(dot)com> |
|---|---|
| To: | Darren Duncan <darren(at)darrenduncan(dot)net> |
| Cc: | PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: bad variable subst after "AS" |
| Date: | 2010-09-16 15:12:51 |
| Message-ID: | 1284649877-sup-6411@alvh.no-ip.org |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-hackers |
Excerpts from Darren Duncan's message of jue sep 16 02:33:37 -0400 2010:
> My impression of this is that Pg is treating the "a1" after the "AS" like it was
> a variable reference and so substituted it for $1.
Yes.
> Now that just seems wrong to me. I can understand either "a0" or "rv" getting a
> substitution, but something following an "AS" being substituted is just wrong.
>
> Is that a bug and if not then what is the rationale for working that way, and
> can it be changed?
Fixed in 9.0.
> Meanwhile, what is the best way to write f to work around this misbehavior?
Give the column a different alias, one not colliding with a variable name.
--
Álvaro Herrera <alvherre(at)commandprompt(dot)com>
The PostgreSQL Company - Command Prompt, Inc.
PostgreSQL Replication, Consulting, Custom Development, 24x7 support
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