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Posted to dev@iotdb.apache.org by "suyue (JIRA)" <ji...@apache.org> on 2019/07/23 07:51:00 UTC

[jira] [Created] (IOTDB-152) Reduce RPC communication for retrieving data types in queries

suyue created IOTDB-152:
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             Summary: Reduce RPC communication for retrieving data types in queries
                 Key: IOTDB-152
                 URL: https://issues.apache.org/jira/browse/IOTDB-152
             Project: Apache IoTDB
          Issue Type: Improvement
            Reporter: suyue


When executing the query statement, after sending the executeStatement request to the server to return the execResp, the client  send several TSFetchMetadata  requests to the server for fetching data types of the query columns. So we can return dataTypes in  executeStatement request to avoid the following fetchmetaData requests.

Thank Rui Lei for discovering this problem.



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