DBMS_STATS Not Running in Parallel When DEGREE=> Set and Table Contains User-Defined PL/SQL Function that Is Not Parallel Enabled (Doc ID 1911883.1)

Last updated on JULY 07, 2016

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.4 and later
Information in this document applies to any platform.

Symptoms

A SQL Analyze statement, coming from DBMS_STATS, has parallel hints and shows a parallel plan.  The plan contains the operation PX COORDINATOR FORCED SERIAL, which means the parallel plan is executing serially; this is causing performance problems.

 

Cause

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