Refer to the section on Materialized Query Tables.

请参阅关于物化查询表的小节。

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Not supported are range clustered tables (RCT), materialized query tables (MQT), and typed tables.

不支持范围簇表（RCT）、物化查询表（MQT）和有类型的表。

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Materialized query tables can significantly improve the performance of queries, especially complex queries.

物化查询表可以显著提高查询的性能，尤其是提高复杂查询的性能。

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