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Message Posted: Wed, 16 Dec 2015 @ 20:57:03 GMT


     
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Subj:   Re: Why there is a USI restriction on Join Indexes.
 
From:   Anomy Anom

<-- Anonymously Posted: Wednesday, December 16, 2015 17:09 -->

USI on JI is not allowed simply to keep index maintenance overhead more manageable.

NUSI is AMP-local so no need to separately journal data value changes for the index - if the AMP rolls back a base table row, then it already has the information needed to also roll back any corresponding NUSI change.



     
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