optimizer time reported as?

  • From: "Wolfson Larry - lwolfs" <lawrence.wolfson@xxxxxxxxxx>
  • To: <oracle-l@xxxxxxxxxxxxx>
  • Date: Wed, 11 Jan 2006 15:00:53 -0600

I got asked about performance on a database that was recently upgraded
from 8.1.7.4 to 9.2.0.6.
 
Looking at the initora I noticed
optimizer_max_permutations           integer
79999
 
    The DBA doing the upgrade said she only changed the parmaeters
relating to the upgrade.
I know the default changed from 8's 80000 to 9's 2000 and there was an
earlier TAR telling us to change the 
80000 to 79999.
 
    I thought this might be an issue and I ran Tim Gorman's sp_time
script to see where the overhead was.
I just wanted to verify that the optimizer_max_permutations time is
accounted for in the 
Parsing SQL time and not somewhere else.
 
 
    TIA
    Larry Wolfson
    
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