Tian Jiang created IOTDB-665:
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Summary: [Distributed] Pull up possible semantic checks
Key: IOTDB-665
URL: https://issues.apache.org/jira/browse/IOTDB-665
Project: Apache IoTDB
Issue Type: Bug
Components: Core/Engine
Reporter: Tian Jiang
The life cycle of a PhysicalPlan can be roughly divided into two phases:
generation and execution. In the stand-alone IoTDB, the two phases are all done
within the same thread, so if an error occurs in the execution, it can still be
reported to the client.
But in the distributed version, when the PhysicalPlan moves to the execution,
it must have been replicated to other nodes and the result is returned to the
client, so there is no chance for the client to know whether there is an error
in the execution.
To resolve this, semantic checks should be performed as early as possible,
including the check of path existence, the match of value and data type, and so
on.
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