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Archives of the TeradataForum
Message Posted: Mon, 23 Aug 2004 @ 14:02:57 GMT
| Subj: | | Re: Different Explain for identical query with different users |
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| From: | | Victor Sokovin |
Roland,
| | The query does contain a qualification on the user system variable, but I have never seen the explain change based on the user running the
query. | |
| | Has anybody else seen this behavior and is it a new 'feature'? Can it be prevented? | |
| | The version we're on is V2R.05.00.02.21 | |
Users can have different profiles and the differences may have impact on the explain plans. I would start with investigating the
differences in the HELP SESSION outputs for the users concerned. There are quite a few things to watch: default date, time and character set
formats etc. I could imagine that some data conversions may cause the optimizer not to use an SI, for example, causing a big difference in the
explain.
If you localize the parameter(s) please post a summary. The example is indeed interesting.
Regards,
Victor
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