Re: : Performance Improvement Strategy

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Scott Marlowe <scott.marlowe@xxxxxxxxx> writes:
> It used to be that cluster on a very randomly ordered table was much
> slower than doing something like select * into newtable from oldtable
> order by col1, col2;  Is that still the case in 9.0/9.1?

Fixed in 9.1, per release notes:

	* Allow CLUSTER to sort the table rather than scanning the index when it seems likely to be cheaper (Leonardo Francalanci)

			regards, tom lane

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