All tables involved in the query must have at least UPDATE STATISTICS LOW run against the table.

查询中涉及的所有表都至少必须有update STATISTICS LOW运行。

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Statistics generated by UPDATE STATISTICS LOW on tables and indexes have always been maintained at fragment level.

UPDATE STATISTICS LOW 在表和索引上生成的统计将在片段的级别上进行维护。

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Use UPDATE STATISTICS LOW if the number of rows has changed significantly or after migration from previous version of database server.

如果被更改的行数很多，或者刚在不同版本的数据库服务器之间完成迁移，则应使用 UPDATE STATISTICS LOW。

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