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Archives of the TeradataForum
Message Posted: Sun, 17 Jun 2001 @ 15:07:31 GMT
Subj: | | Re: Why redistributing? |
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From: | | Ken Hansen |
Hi Rudel,
Although the explain identifies the number of rows, the optimiser decides to copy a table across the nodes before this is known. That
decision is based on collected statistics, the index and whether the join condition in your view matches the index precisely.
Make sure you have collected statistics on the smaller tables after indexing, or creating secondary indexes which exactly match the join
condition of your view.
Ken Hansen
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