[jira] [Created] (IOTDB-3936) Add an interface in IClientRPCService to directly use TsBlock instead of TSQueryDataSet

["Yuan Tian (Jira)" <ji...@apache.org>]

Yuan Tian created IOTDB-3936:
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             Summary: Add an interface in IClientRPCService to directly use TsBlock instead of TSQueryDataSet
                 Key: IOTDB-3936
                 URL: https://issues.apache.org/jira/browse/IOTDB-3936
             Project: Apache IoTDB
          Issue Type: Improvement
            Reporter: Yuan Tian


Currently, we convert TsBlock to TSQueryDataSet to be compatible with previous executeStatement() interface in IClientRPCService and in this way we won't need to change all other language clients like go, C/C++ and python etc.

However, we can add a new interface like executeStatementV2 to directly return serialized form of TsBlock to client and then do the deserialization things in the client end. In this way, we can improve the query performance if the result TsBlock is received from remote node. Because in such case, what we received is already serialized TsBlock(in ByteBuffer form), we can directly return that to client which will saving one deserializing TsBlock and one serialzie to TSQueryDataSet.

We alse need to change the java client: jdbc and session to adapt to read from TsBlock.



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