Details
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Technical Debt
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Status: Open
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Major
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Resolution: Unresolved
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None
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None
Description
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.
We could follow steps from javadocs of org.apache.calcite.plan.RelRule written for migration from deprecated java api to Immutables.
It would work for scala to java migration as well.
Please keep in mind that there is no need to migrate rules extending ConverterRule since these rules do not have such problem.
Attachments
Issue Links
- is a parent of
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FLINK-34473 Migrate FlinkPruneEmptyRules
- Open
- mentioned in
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