They can filter out certain words from visited sites or scan for viruses.
它们可以过滤掉来自被访问站点的特定词汇或可以扫描病毒。
This means that a sequential scan of the table will be faster than an indexed read, and we cannot play with the filter criteria.
这意味着对表的顺序扫描比索引读取更快，我们无法遵循指示器标准。
The time_id join keys that meet the filter requirements on the Time dimension table are hashed to create a bit vector that filters rows of the Orders table from the skip scan above.
Time 维度表中满足过滤条件的 time_id 连接键被散列以创建一个位向量，用于过滤以上跳跃式扫描的 Orders 表行。
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