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PQ Workers Not Released After a Query Involving CDT is Run within a Transaction (Doc ID 1940830.1)

Last updated on FEBRUARY 22, 2024

Applies to:

Oracle Database Exadata Express Cloud Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Oracle Database Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.


PQ workers are not released after a query that involves materialization (eg. with clause, grouping sets, star transformation) is run in parallel if there is an open transaction.


Test Case
Keep two sessions open.
Session 1: scott/tiger
Session 2: sys

 The 'in use' workers should have been released because the query has finished.


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