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https://issues.apache.org/jira/browse/FLINK-39812?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated FLINK-39812:
-----------------------------------
Labels: pull-request-available (was: )
> Migrate FlinkTypeFactory to java
> --------------------------------
>
> Key: FLINK-39812
> URL: https://issues.apache.org/jira/browse/FLINK-39812
> Project: Flink
> Issue Type: Technical Debt
> Components: Table SQL / Planner
> Reporter: Sergey Nuyanzin
> Assignee: Sergey Nuyanzin
> Priority: Major
> Labels: pull-request-available
>
> The main reason here is that this class is relatively often a problem while
> Calcite upgrade if something is changed in interfaces (new default methods
> for instance)
> maven just fails as
> {noformat}
> [ERROR] error: Error while emitting FlinkTypeFactory.scala
> [ERROR] assertion failed:
> [ERROR] cannot invokespecial
> org/apache/calcite/rel/type/RelDataTypeFactory.leastRestrictive, the
> interface is not a direct parent.
> [ERROR] while compiling:
> .../flink-table-planner/src/main/scala/org/apache/flink/table/planner/calcite/FlinkTypeFactory.scala
> [ERROR] during phase: jvm
> [ERROR] library version: version 2.12.20
> [ERROR] compiler version: version 2.12.20
> ...
> [INFO] last tree to typer: TypeTree(class FlinkHintStrategies)
> [INFO] tree tpe:
> org.apache.flink.table.planner.hint.FlinkHintStrategies
> ...
> [WARNING] 42 warnings found
> [ERROR] one error found
> {noformat}
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