[jira] [Created] (FLINK-18556) Drop the unused options in TableConfig

[Shang Yuanchun (Jira)]

Jark Wu created FLINK-18556:
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             Summary: Drop the unused options in TableConfig
                 Key: FLINK-18556
                 URL: https://issues.apache.org/jira/browse/FLINK-18556
             Project: Flink
          Issue Type: Sub-task
          Components: Table SQL / API
            Reporter: Jark Wu


As disucssed in FLINK-16835, the following {{TableConfig}} options are not preserved:

* {{nullCheck}}: Flink will automatically enable null checks based on the table schema ({{NOT NULL}} property)
* {{decimalContext}}: this configuration is only used by the legacy planner which will be removed in one of the next releases
* {{maxIdleStateRetention}}: is automatically derived as 1.5* {{idleStateRetention}} until StateTtlConfig is fully supported (at which point only a single parameter is required).

The blink planner should remove the dependencies on {{nullCheck}} and {{maxIdleStateRetention}} first.  Besides, this maybe blocked by when to drop old planner, because old planner is still using them.




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