Re: CLUSTER patch

Doc patch mentions problem with dependency after CLUSTER. Patch removed
from queue.

---------------------------------------------------------------------------

Alvaro Herrera wrote:
> Tom Lane dijo:
>
> > Bruce Momjian <pgman(at)candle(dot)pha(dot)pa(dot)us> writes:
> > > This case is actually more complicated because after the swap, pg_class
> > > still says thisxactonly but the relfilenode points to non-thisactonly
> > > buffers, and via versa.
> >
> > pg_class doesn't say anything (if it did, we could make relcache.c
> > track it).
> >
> > But yes, the problem is that myxactonly has to line up with where the
> > buffers are stored. As I mentioned, I think it would work to flush out
> > all buffers for both rels before doing the swap.
>
> It does indeed work. Actually, I tried to do that before, but the fact
> that RelationFlushBuffers requires a firstDelBlock made me turn around.
>
> I attach a new patch against current cvs HEAD. It works as far as I've
> tested it, but I may be missing some cases. I'll post a documentation
> patch later if this gets applied.
>
> --
> Alvaro Herrera (<alvherre[a]atentus.com>)
> "Some men are heterosexual, and some are bisexual, and some
> men don't think about sex at all... they become lawyers" (Woody Allen)

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