Excerpts from Tom Lane's message of lun nov 08 22:29:28 -0300 2010:
> Hmm. If you look at FileClose() in fd.c, you'll discover that that
> "temporary file" log message is emitted immediately before unlink'ing
> the file. It looks pretty safe ... but, scratching around, I notice
> that there's a CHECK_FOR_INTERRUPTS at the end of ereport(). So a
> cancel that was caught by that exact CHECK_FOR_INTERRUPTS call could
> provoke this symptom. The window for this is larger than it might seem
> since the CHECK_FOR_INTERRUPTS could be responding to an interrupt that
> came in sometime before that.
>
> I think we need to re-order the operations there to ensure that the
> unlink will still happen if the ereport gets interrupted.
Would it work to put the removal inside a PG_CATCH block?
--
Álvaro Herrera <alvherre@commandprompt.com>
The PostgreSQL Company - Command Prompt, Inc.
PostgreSQL Replication, Consulting, Custom Development, 24x7 support