| From: | Andres Freund <andres(at)2ndquadrant(dot)com> |
|---|---|
| To: | Kevin Grittner <kgrittn(at)ymail(dot)com> |
| Cc: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: MultiXact truncation, startup et al. |
| Date: | 2013-11-29 21:28:12 |
| Message-ID: | 20131129212812.GC14712@awork2.anarazel.de |
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| Lists: | pgsql-hackers |
On 2013-11-29 13:26:00 -0800, Kevin Grittner wrote:
> Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> wrote:
>
> > New versions of all these patches, plus one more patch which
> > removes the behavior that HeapTupleGetUpdateXid checks for
> > aborted updates. (Turns out this was necessary to get freezing
> > right.) My previous patch to avoid InvalidXid as page prune
> > point is reverted in there, too (no longer necessary.)
>
> Does this mean that when HeapTupleSatisfiesVacuum() returns
> HEAPTUPLE_DELETE_IN_PROGRESS it is no longer possible for
> HeapTupleHeaderGetUpdateXid() to return InvalidTransactionId?
Correct.
Greetings,
Andres Freund
--
Andres Freund http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services
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