RE: What is left of explain plan with ASSM?
- From: "Polarski, Bernard" <Bernard.Polarski@xxxxxxxxxxxxxx>
- To: "Allen, Brandon" <Brandon.Allen@xxxxxxxxxxx>,"oracle-l" <oracle-l@xxxxxxxxxxxxx>
- Date: Fri, 20 Oct 2006 07:44:21 +0200
yes indeeded. I should have also added that the table was 4.2 millions
rows and CF was 3.4 millions so that a quick estimation of this ratio,
one must expect around 400 table blocks access, but the executions with
autotrace on showed that Oracle found everything, root block, branch,
index and table blocks in 7 blocks. This is a direct perversion of the
ASSM way to insert rows. The result is that you can't trust what you
see.
bp
_____
From: Allen, Brandon [mailto:Brandon.Allen@xxxxxxxxxxx]
Sent: Thursday, 19 October, 2006 6:55 PM
To: Polarski, Bernard; oracle-l
Subject: RE: What is left of explain plan with ASSM?
Doesn't card=568 mean 568 *rows*, not 568 blocks?
_____
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Polarski, Bernard
Sent: Thursday, October 19, 2006 4:52 AM
To: oracle-l
Subject: What is left of explain plan with ASSM?
Note the prediction of 568 table block access in contrast of the
reality.
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