Query on CDB_* Views Hang on ADG (Doc ID 2292583.1)

Last updated on AUGUST 23, 2017

Applies to:

Oracle Database - Enterprise Edition - Version 12.1.0.2 to 12.1.0.2 [Release 12.1]
Information in this document applies to any platform.

Symptoms

 The symptom of this issue is some queries on CDB_* views spin on parse stage, it never finished. The following is a sample tkprof output:

 comment: this issue only happens on ADG+CDB environment.

Changes

 none.

Cause

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