RDBPROD: Dynamic Optimizer Uses Wrong Background Index Resulting in Bad Performance
Last updated on AUGUST 12, 2016
Applies to:Oracle Rdb Server on OpenVMS - Version 7.1 to 220.127.116.11 [Release 7.1 to 7.2]
HP OpenVMS Itanium
HP OpenVMS Alpha
An index has been recreated. Prior to this, the performance was good and the optimizer strategy looked like:
Index INDEX_222 is now chosen as the second background index, which resulted in 7+580010 fetches instead of 5+3 fetches.
An index has been recreated.
Sign In with your My Oracle Support account
Don't have a My Oracle Support account? Click to get started
My Oracle Support provides customers with access to over a
Million Knowledge Articles and hundreds of Community platforms