RE: Bind variable peeking and Dynamic sampling

Yes, Tanel has been kind enough to share some of his secrets with me.
He actually posted a preview of his presentation on this list a few
months ago as well.  I am currently looking into implementing his
methods, but still have some testing to do.
 
I have actually tried disabling bind variable peeking also, but got
negative results immediately as the first query I tried (the same one I
was having trouble with due to inappropriate plan sharing) suffered a
major drop in performance - running in 20 seconds with the bind variable
peeking compared to 20 minutes with the plan it chose w/o peeking at the
binds.
 
Thanks,
Brandon

________________________________

From: Shivaswamy Raghunath [mailto:shivaswamykr@xxxxxxxxx] 


To ALWAY_PEEK is to parse always, right? 


Privileged/Confidential Information may be contained in this message or 
attachments hereto. Please advise immediately if you or your employer do not 
consent to Internet email for messages of this kind. Opinions, conclusions and 
other information in this message that do not relate to the official business 
of this company shall be understood as neither given nor endorsed by it.

Other related posts: