QSM-02123：subquery and UNION mv's must be primary key mv's
错误码
错误描述：subquery and UNION mv's must be primary key mv's
错误原因：The capability in question is not supported when the materialized view is not a primary key materialized view and uses subqueries or the union operator in this context.
解决方法：Re-create the materialized view as a primary key materialized view.
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