Last updated on JANUARY 22, 2016
Applies to:Oracle Exalytics Software - Version 220.127.116.11.0 and later
Oracle Database - Enterprise Edition - Version 18.104.22.168 and later
Information in this document applies to any platform.
When using Oracle Database In-Memory 22.214.171.124 (IMDB) on an Oracle Exalytics server, the query performance is less than expected.
For example, if setting optimizer_features_enable:
Setting it to optimizer_features_enable='126.96.36.199' improves query performance (< 1 second).
Resetting it to optimizer_features_enable='188.8.131.52' slows query performance (7 - 10 seconds)
Expecting performance to be better with 184.108.40.206 than it is with 220.127.116.11, but explain plan shows longer time in the hard parse phase.
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