connect by 10.2.0.2/3 - any workaround?
- From: "GovindanK" <gkatteri@xxxxxxxxxxx>
- To: "Oracle-L Freelists" <oracle-l@xxxxxxxxxxxxx>
- Date: Wed, 01 Aug 2007 16:42:18 -0700
Hello All
One of our queries using CONNECT BY & START WITH and it runs very slow.
Was not the case with 9.2.0.6; I took a
look at the following Metalink Notes:
Note:5211863.8 Subject: Bug 5211863 - Poor plan for CONNECT BY
Note:5872956.8 Subject: Bug 5872956 - Slow or Wrong Results on CONNECT
BY queries with constant predicates
Applying opatch 5211863 to the 10.2.0.2 did not help much.
alter session set optimizer_features_enable="9.2.0" was not of any use.
So is setting optimizer to rule.
The query did not exit at all after running for hours and had to kill
it.
alter session set "_OPTIMIZER_CONNECT_BY_COST_BASED" = FALSE also did
not help. It is fixed in 11g but you know it is not released yet.
Any workarounds would be appreciated.
TIA
GovindanK
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