QSM-02178: MV has a view with UNION ALL that is not fast
refreshable



QSM-02178: MV has a view with UNION ALL that is not fast refreshable..

Answer / guest

Cause: The materialized view has a view whose definition
involves a UNION ALL query that does not satisfy the
requirements for fast refresh.

Action: Check that the defining query of the view being
referenced in the materialized view satisfies conditions for
fast refresh of a UNION ALL materialized view.

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