Sergey Nuyanzin created FLINK-34156:
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Summary: Move Flink Calcite rules from Scala to Java
Key: FLINK-34156
URL: https://issues.apache.org/jira/browse/FLINK-34156
Project: Flink
Issue Type: Technical Debt
Components: Table SQL / Planner
Reporter: Sergey Nuyanzin
Assignee: Sergey Nuyanzin
Fix For: 2.0.0
This is an umbrella task for migration of Calcite rules from Scala to Java
mentioned at https://cwiki.apache.org/confluence/display/FLINK/2.0+Release
The reason is that since 1.28.0 ( CALCITE-4787 - Move core to use Immutables
instead of ImmutableBeans ) Calcite started to use Immutables
(https://immutables.github.io/) and since 1.29.0 removed ImmutableBeans (
CALCITE-4839 - Remove remnants of ImmutableBeans post 1.28 release ). All rule
configuration related api which is not Immutables based is marked as
deprecated. Since Immutables implies code generation while java compilation it
is seems impossible to use for rules in Scala code.
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