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Statistics Collection Recommendations – Teradata 14.10, 15.0 and 15.10 - comment by carrie

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Chandrasekhar,
 
The NoDot0Backdown setting needs to be changed to TRUE. The logic used by Analyze Jobs to detect staleness relies on UDI counts from USECOUNT logging in conjunction with the defined  COLLECT STATS THRESHOLD option for each stat.  Change-based THRESHOLD logic requires version 6 stats to track the UDI counts which in turn requires NoDot0Backdown to be set to TRUE.  Only in Version 6 will the statistics histrograms store those UDI counts.
 
There are a number of enhancements that have been made in the last year or two to improve the performance of StatsMgr Analyze jobs.  If you call the support center they can help advise you which ones are available for your platform.
 
Thanks, -Carrie


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