CDC MAP TABLE CDC$M_<CHANGE_SET_NAME> NOT PURGED BY CDC PURGE JOB

(Doc ID 1499371.1)

Last updated on MAY 07, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.1 to 11.2.0.3 [Release 10.2 to 11.2]
Information in this document applies to any platform.

Symptoms

 In an Asynchronous CDC environmnet, mapping table CDC$M_<CHANGE_SET_NAME> grows indefinitely and not purged by CDC purge job CDC$_DEFAULT_PURGE_JOB  though change table data is purged and maintained by purge job successfully.

Test Case

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Cause

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