Hi,
So after you optimize query process, how much has the efficiency of queries improved? Thanks XuYi On 3/9/2019 19:04，suyue<[email protected]> wrote： Hi, all. I’m now working on the query process of IOTDB. This PR optimizes value-filtering range queries.The related JIRA issue is <https://issues.apache.org/jira/projects/IOTDB/issues/IOTDB-6?filter=allopenissues <https://issues.apache.org/jira/projects/IOTDB/issues/IOTDB-6?filter=allopenissues>>. The main changes are : 1) Replace the method ```TsPrimitiveType getValueInTimestamp(long timestamp) throws IOException;``` in class ```EngineReaderByTimeStamp``` with ```Object getValueInTimestamp(long timestamp) throws IOException;```. Because construct the TsPrimitiveType will consume more time than Object. 2) Push the implementation of ReaderByTimestamp to lower level. That is to use pageHeader filter some pages. 3) Implement the optimization method which is used in TsFile. I would be very glad to discuss the query optimization with you all. Regards, Yue Su.
