[jira] [Created] (FLINK-15944) Resolve the potential class conflict proplem when depend both planners

["Jark Wu (Jira)" <ji...@apache.org>]

Jark Wu created FLINK-15944:
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             Summary: Resolve the potential class conflict proplem when depend both planners
                 Key: FLINK-15944
                 URL: https://issues.apache.org/jira/browse/FLINK-15944
             Project: Flink
          Issue Type: New Feature
          Components: Table SQL / Legacy Planner, Table SQL / Planner
            Reporter: Jark Wu


FLINK-15935 raised the potential class conflict problem when the project/application depend old planner and blink planner at the same time. Currently, Calcite classes (fix Calcite bugs) and {{PlannerExpressionParserImpl}} have the same classpath and may lead to problems when they are different. 

Currently, we keep these classes in sync in both planners manually. However, it's not safe and error-prone. We should figure out a solution for this (we can't remove old planner in the near future).

A viable solution is having a {{flink-table-planner-common}} module to keep the commonly used classes in both planner.



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