The main focus of this group, however, is to avoid full document decompression during query execution.
这类压缩器主要侧重于避免在查询过程中进行完整的文档解压缩。
Listing 2 shows the query results in a document.
清单2显示了文档中的查询结果。
These queries transform the document "on the fly" during query processing and do not change the document in the table.
这些查询在处理期间“临时”转换文档，并不修改表中的文档。
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