JBoss Community Archive (Read Only)

Teiid 8.12

preserved Table

A key-preserved table has a primary or unique key that would remain unique if it were projected into the result of the query. Note that it is not actually required for a view to reference the key columns in the SELECT clause. The query engine can detect a key preserved table by analyzing the join structure. The engine will ensure that a join of a key-preserved table must be against one of its foreign keys.

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