Jialin Qiao created IOTDB-454:
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             Summary: Vectorize the TimeGenerator
                 Key: IOTDB-454
                 URL: https://issues.apache.org/jira/browse/IOTDB-454
             Project: Apache IoTDB
          Issue Type: Improvement
            Reporter: Jialin Qiao


For all query types with value filter, such as where s1=1 or s2=1, we will 
construct a TimeGenerator to get the timestamp in the result.

In the above case, the generator tree is OrNode(LeafNode(s1=1), LeafNode(s2=1)).

In the engine, each leafnode corresponds to a SeriesRawDataPointReader. It's 
possible to use SeriesRawDataBatchReader in each leafnode and internal nodes to 
speed up the time generator.

 

It could also be optimized in the TsFile module.



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