Kurt Young created FLINK-14672:
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Summary: Make Executor stateful in sql client
Key: FLINK-14672
URL: https://issues.apache.org/jira/browse/FLINK-14672
Project: Flink
Issue Type: Improvement
Components: Table SQL / Client
Reporter: Kurt Young
Currently sql client is stateless, it read config files into `Environment` and
recorded all session changes into `SessionContext`.
Each time sql client want to execute a new command, we have to first construct
`ExecutionContext` by combining `Environment` and `SessionContext`, and then
transfer all information into a new `EnvironmentInstance`.
It works well before but kind of hard to extend now. One example is support
creating table in sql client. We have to remember create statements and replay
them every time we want to execute a new command.
If we can make sql client stateful, and table environment be the state of sql
client, things will be much more easier.
This Jira should revisit all related classes, and define a clean relationship
between old roles after making sql client stateful.
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