Tom Lane escribió:
> Alvaro Herrera <alvherre@commandprompt.com> writes:
> > After the patch we don't have any way to detect whether resowner.c has
> > any snapshot still linked to. I assume there's no objection to adding a
> > new entry point in resowner.c for this.
>
> Hmm, that's a bit problematic because resowner.c doesn't have any global
> notion of what resource owners exist. I think you still need to have
> snapmgr.c maintain a list of all known snapshots. resowner.c can only
> help you with tracking reference counts for particular snapshots.
A counter seems to suffice. Patch attached.
--
Alvaro Herrera http://www.CommandPrompt.com/
The PostgreSQL Company - Command Prompt, Inc.