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Re: Segmentation fault with core dump

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On 2013-04-10 19:29:06 -0400, Tom Lane wrote:
> Andres Freund <andres@xxxxxxxxxxxxxxx> writes:
> > On 2013-04-10 19:06:12 -0400, Tom Lane wrote:
> >> And the answer is they're not testing this code path at all, because if
> >> you do
> >> DECLARE c CURSOR WITH HOLD FOR ...
> >> FETCH ALL FROM c;
> >> then the second query executes with a portal (and resource owner)
> >> created to execute the FETCH command, not directly on the held portal.
> 
> > But in that path CurrentResourceOwner gets reset to portal->resowner as
> > well (see PortalRunFetch())?
> 
> Right, but that's the FETCH's portal, which is a regular "live" portal
> that has a ResOwner.

I don't think so?

standard_ProcessUtility:
PerformPortalFetch:
	/* get the portal from the portal name */
	portal = GetPortalByName(stmt->portalname);
        ...
	/* Do it */
	nprocessed = PortalRunFetch(portal,
								stmt->direction,
								stmt->howMany,
								dest);
PortalRunFetch:
	PG_TRY();
	{
		ActivePortal = portal;
		CurrentResourceOwner = portal->resowner;

So it seems to trigger a very similar codepath?

Greetings,

Andres Freund

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


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