Constraints Impacting Streams Apply Processing When parallelism > 1
(Doc ID 1106453.1)
Last updated on FEBRUARY 20, 2019
Applies to:Oracle Database - Enterprise Edition - Version 126.96.36.199 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 Cloud Exadata Service - Version N/A and later
Information in this document applies to any platform.
Apply processing with parallelism > 1 is impacted by the constraints defined
between parent and child tables.
Foreign key constraints defined on destination database can cause Parallel Apply Servers to go in
"waiting for dependency" state resulting in increased APPLY latency.
When foreign keys on the destination database are removed, all apply servers work normally.
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