This functionality is built upon the virtual table interface (VTI) provided by IDS.
该功能建立在 IDS 提供的虚表接口(VTI)之上。
Notice that the example creates a separate virtual table for each TimeSeries column.
注意,这个例子为每个timeseries列创建一个单独的虚表。
As you can see, the optimizer creates a virtual table to process the IN-list sub-query.
如您所见,优化器创建了一个虚拟表来处理in列表子查询。
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