Archives of the TeradataForum
Message Posted: Mon, 28 Mar 2005 @ 19:07:01 GMT
Subj: | | Statistics Help |
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From: | | Harold D Kleven |
We recently received some major help from GSC regarding a bad query (hot amping) by identifing some areas for us to gather new statistics. When
we asked the analyst how they came about those recommendations, hoping to get a methodology we could apply here, they responded "simple, just use
this approach in SQLassistant" and showed us
diagnostic HELPSTATS on for session;
EXPLAIN ;
Whoa! Recommendations appear at the end of the EXPLAIN! We were properly impressed, as we had never heard of this feature before and
later couldn't find it in any manual. (analyst implied it was a relativly new feature.) Has anyone else discovered this and are there any massive
concerns about it?
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