It queries your database, indexes each column in each row of the result, and ties each index entry to the row's primary key.
它将查询数据库，为结果的每行中的每列建立索引，并且将每个索引条目绑定到行的主键上。
Automatically adjust execution strategy to accomodate changes in underlying database schemas, such as the addition of new indexes.
自动调整执行策略，以便在基础数据库模式中应用更改，比如添加新的索引。
Changing the database in other ways, including adding, dropping, or modifying indexes or other constraints.
以其他方式修改数据库，包括添加、删除或修改索引或其他约束。
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