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 laterOracle 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 |