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Message Posted: Sun, 01 Nov 2015 @ 07:38:35 GMT

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Subj:   Re: Collecting Statistics on Non-Index columns
From:   Mark Young

It is more important to collect statistics on non-index columns that are used regularly in joins, than the index columns. If your data is distributed well, then the index column statistics obtained by random AMP sampling should suffice, if data is skewed then keep these statistics also.


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