Bad Execution Plan After Upgrade to 12c And Above - Full Table Scans Within Scalar Subqueries
(Doc ID 2928140.1)
Last updated on JULY 22, 2024
Applies to:
Oracle Database - Enterprise Edition - Version 12.2.0.1 and laterInformation in this document applies to any platform.
Symptoms
This issue starts on 12.2.0 and above, the poor execution includes similar to below:
No CONCATENATION is used
Changes
Upgrade to 12.2 and above
Cause
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In this Document
Symptoms |
Changes |
Cause |
Solution |
References |