Query With Distinct Key Word Slow After 12c Upgrade
Last updated on JANUARY 24, 2018
Applies to:Oracle Database - Enterprise Edition - Version 188.8.131.52 and later
Information in this document applies to any platform.
- A select query performs poorly after 12c upgrade
- There is a DISTINCT key word in the subquery.
- 184.108.40.206 includes a fix that considers the DISTINCT in the costing of unnesting of the subquery
Inclusion of fix for 12388221.
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