RE: What is left of explain plan with ASSM?

From: Polarski, Bernard <Bernard.Polarski_at_atosorigin.com>
Date: Fri, 20 Oct 2006 07:44:21 +0200
Message-ID: <25D4919915CCF742A88EE3366D6D913D0D568733@mailserver1>

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.

From: Allen, Brandon [mailto:Brandon.Allen_at_OneNeck.com] 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_at_freelists.org
[mailto:oracle-l-bounce_at_freelists.org] 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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Received on Fri Oct 20 2006 - 00:44:21 CDT