RE: Help with view, pushing predicate, and 9i

Mark,

>We are in the process of converting this app to 9i (9.2.0.5 on Solaris
>8), and in 9i, the predicate is not pushed.  This results in a full
>table scan on a large table, and, abysmal performance.

Have you looked at changing OPTIMIZER_MAX_PERMUTATIONS to see if this
changes the plan? The default in 8.1.7 is 80000 but in 9.2.x, it has been
defaulted to 2000. [Btw, Apps 11i on an 8.1.7 specifically _requires_ OMP to
be set to 2000 and _complex_view_merging to TRUE]

Hth,
John Kanagaraj <><
DB Soft Inc
Phone: 408-970-7002 (W)

Grace - Getting something we do NOT deserve
Mercy - NOT getting something we DO deserve
Click on 'http://www.needhim.org' for Grace and Mercy that is freely
available!

** The opinions and facts contained in this message are entirely mine and do
not reflect those of my employer or customers **
----------------------------------------------------------------
Please see the official ORACLE-L FAQ: http://www.orafaq.com
----------------------------------------------------------------
To unsubscribe send email to:  oracle-l-request@xxxxxxxxxxxxx
put 'unsubscribe' in the subject line.
--
Archives are at http://www.freelists.org/archives/oracle-l/
FAQ is at http://www.freelists.org/help/fom-serve/cache/1.html
-----------------------------------------------------------------

Other related posts: