danny0405 commented on a change in pull request #13577:
URL: https://github.com/apache/flink/pull/13577#discussion_r507354670
##########
File path:
flink-table/flink-table-planner/src/main/scala/org/apache/flink/table/functions/utils/TableSqlFunction.scala
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@@ -40,12 +44,19 @@ class TableSqlFunction(
functionImpl: FlinkTableFunctionImpl[_])
extends SqlUserDefinedTableFunction(
new SqlIdentifier(name, SqlParserPos.ZERO),
+ SqlKind.OTHER_FUNCTION,
ReturnTypes.CURSOR,
createEvalOperandTypeInference(name, tableFunction, typeFactory),
- createEvalOperandTypeChecker(name, tableFunction),
- null,
+ createEvalOperandMetadata(name, tableFunction),
functionImpl) {
+ override def getRowTypeInference: SqlReturnTypeInference = new
SqlReturnTypeInference {
+ override def inferReturnType(opBinding: SqlOperatorBinding): RelDataType =
{
+ // The arguments should never be used.
+ functionImpl.getRowType(opBinding.getTypeFactory,
Collections.emptyList())
+ }
+ }
Review comment:
Yes, it can be removed.
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