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Oracle 12.2.0.1 CBO calculating high cost/CPU for queries with recursive sub-query (Doc ID 2443466.1)

Last updated on FEBRUARY 18, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 12.2.0.1 and later
Information in this document applies to any platform.

Symptoms

Queries with recursive sub-query produces a very high cost at times with high CPU

Changes

Upgrade to Oracle 12.2.0.1 from lower versions.

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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