Hi All,

We have upgraded our databases from to After the upgrade we have set Optimizer_Features_Enable= We have faced the performance slow down after this setup. As a workaround to enhance the performance Optimizer_Features_Enable (OFE) set back to 9.2.0, after this the performance is as expected.

Now we are planning to set this parameter to There are few processes which are running fine (1 hr) with OFE 9.2.0, taking 5 hrs time with OFE

Please share if you come across this situation.