Re: reindex creates predicate lock on index root

"Kevin Grittner"  writes:
> Heikki Linnakangas  wrote:
>> You can have one snapshot pushed to the active snapshot stack, and
>> do a DDL operation like reindex using a different snapshot. You'll
>> have to check the snapshot in the HeapScanDesc.
> Will look at that.  Do you think it makes more sense to pass in the
> snapshot on all these calls and test it within predicate.c, or
> condition the calls on this?

I'd vote for passing in the snapshot.  I can foresee wanting to know
exactly which snapshot is in question in this code, anyway.
		regards, tom lane