Claudio Freire <> writes:
> Not only that, but from your description (I haven't read the patch,
> sorry), you'd be scanning the whole index multiple times (one per
> worker).

What about pointing each worker at a separate index?  Obviously the
degree of concurrency during index cleanup is then limited by the
number of indexes, but that doesn't seem like a fatal problem.

                        regards, tom lane

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