vacuum crash

I think I am on to something.

The funny way I update the system tables with vacuum optimization
information is wrong, I think, and the new cache code is properly
complaining about it.

I will keep testing.  If I comment out the following code, the vacuum works.
Is there a better way to do this?

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

    /* XXX -- after write, should invalidate relcache in other backends */
    WriteNoReleaseBuffer(ItemPointerGetBlockNumber(&rtup->t_ctid));

    /*
     * invalidating system relations confuses the function cache of
     * pg_operator and pg_opclass, bjm
     */
    if (!IsSystemRelationName(pgcform->relname.data))
        RelationInvalidateHeapTuple(rd, rtup);

--
  Bruce Momjian                        |  http://www.op.net/~candle
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