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AutoDOP Seems to Ignore Object-level Parallel Hints (Doc ID 1502256.1)

Last updated on FEBRUARY 28, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 11.1.0.6 and later
Information in this document applies to any platform.

Symptoms

Simple select statements with a parallel hints are run in an 11.2 database with AutoDOP configured.   The statements run either serially or with a DOP different from the one specified, leading one to believe that object-level hints are ignored when AutoDOP is configured.

Here are two simple select statements:

 

Cause

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In this Document
Symptoms
Cause
 Case 1:  Statement runs serially
  Case 2:  Statement runs with a DOP different from the one specified (parallel hint specified 10; AutoDOP uses 14)
Solution
References


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