DML Merge Spinning When It Has More Than 318 Columns

(Doc ID 2396237.1)

Last updated on MAY 22, 2018

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.1 and later
Information in this document applies to any platform.

Symptoms

Changes

 When there are 318 or less columns used in the comparison in the ON portion of the merge, it runs as expected. Once the columns go over 318, the merge runs indefinitely. It spins on CPU.

 

Cause

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