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Suboptimal Execution Plan With Hash_Join (Doc ID 2937406.1)

Last updated on APRIL 17, 2023

Applies to:

Oracle Database - Enterprise Edition - Version 19.3.0.0.0 and later
Information in this document applies to any platform.

Symptoms

After upgrade to 19c query that executed from application performed slowly apparently due to ANSI Rearchitecture in 19c.

Changes

Upgrade from 11g to 19c

Cause

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In this Document
Symptoms
Changes
Cause
Solution
References


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