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The rewriting algorithm can be enabled and disabled globally using the hive.materializedview.rewriting configuration property and hive.materializedview.rewriting.sql configuration properties (default value is is true). In addition, users can selectively enable/disable materialized views for rewriting. Recall that, by default, materialized views are enabled for rewriting at creation time. To alter that behavior, the following statement can be used:
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ALTER MATERIALIZED VIEW [db_name.]materialized_view_name ENABLE|DISABLE REWRITE; |
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