Bruce Momjian <[EMAIL PROTECTED]> writes:
> Tom Lane wrote:
>> I think that's not happening, conditionally or otherwise.  The atomicity
>> problems alone are sufficient reason why not, even before you look at
>> the performance issues.

> What are the atomicity problems of adding a create/expire xid to the
> index tuples?

You can't update a tuple's status in just one place ... you have to
update the copies in the indexes too.

                        regards, tom lane

---------------------------(end of broadcast)---------------------------
TIP 9: the planner will ignore your desire to choose an index scan if your
      joining column's datatypes do not match

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