Anyone run across Bug 6503543 Suboptimal plan due to bad cardinality estimate for RANGE join predicates

I was doing some tuning on a VPD view (a view that calls tables with FGAC policies) and the 10053 trace exhibited a gigantic index selectivity that surprised me. Curious if anyone else had run across this. I usually check out Jonathan Lewis's ScratchPad and look for notes from Richard Foote, Alberto Dell'Era, Greg Rahn and many others, but so far I have not seen that anyone hit this (of course, I was using google, so....). I am using a 10.2.0.3 database, for which the bug is specifically filed, supposedly fixed in 11.1.0.7.

For those that like more information:
http://orajourn.blogspot.com/2009/02/tuning-performance-example-using-10046.html

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Charles Schultz
Sent from: Champaign Illinois United States.

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http://www.freelists.org/webpage/oracle-l Received on Tue Feb 17 2009 - 08:11:37 CST