OBIEE 12c: Blank or NULL Hierarchy Levels are Displayed when a Ragged Hierarchy is Expanded (Doc ID 2221549.1)

Last updated on FEBRUARY 09, 2017

Applies to:

Business Intelligence Server Enterprise Edition - Version 12.2.1.1.0 and later
Information in this document applies to any platform.

Symptoms

After upgrading from OBIEE 11g to OBIEE 12c (12.2.1.2.0) - where the datasource is a Teradata database accessed via the native Teradata ODBC driver - expanding some levels in a (Ragged) hierarchical column will display "child" hierarchy levels with blank / NULL values. For example:-

In 11g: Expand a particular "parent" level and see just one "child" level that cannot be expanded further.

In 12c: Expand the same "parent" level and see the same "child" level, but see additional / multiple "child" levels where each has a blank / NULL level value.
           Or
           Expand the same "parent" level and see the same "child" level, but it can be expanded and will have its own "child" level with a blank / NULL level value (which can also be expanded, etc.).

Cause

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