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Exclusive Lock on Table Segment Is Required when LOB Partitition Is Being Shrunk with Patch 8538842 (Doc ID 1331755.1)

Last updated on FEBRUARY 23, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 11.1.0.7 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata 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
Information in this document applies to any platform.

Symptoms

Concurrent DMLs are stalled longer than needed while shrinking a LOB in a partitioned table even with the fix for Bug 8538842; during the shrinking of a LOB partition table, the TM exclusive lock is held on the table.

The testcase that reproduce the issue is:

Cause

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In this Document
Symptoms
Cause
Solution
References


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