Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/2159#discussion_r69037753
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/api/table/plan/nodes/dataset/DataSetIntersect.scala
---
@@ -83,66 +82,68 @@ class DataSetIntersect(
tableEnv: BatchTableEnvironment,
expectedType: Option[TypeInformation[Any]]): DataSet[Any] = {
- var leftDataSet: DataSet[Any] = null
- var rightDataSet: DataSet[Any] = null
+ val leftDataSet: DataSet[Any] =
left.asInstanceOf[DataSetRel].translateToPlan(tableEnv)
+ val rightDataSet: DataSet[Any] =
right.asInstanceOf[DataSetRel].translateToPlan(tableEnv)
- expectedType match {
- case None =>
- leftDataSet =
left.asInstanceOf[DataSetRel].translateToPlan(tableEnv)
- rightDataSet =
- right.asInstanceOf[DataSetRel].translateToPlan(tableEnv,
Some(leftDataSet.getType))
- case _ =>
- leftDataSet =
left.asInstanceOf[DataSetRel].translateToPlan(tableEnv, expectedType)
- rightDataSet =
right.asInstanceOf[DataSetRel].translateToPlan(tableEnv, expectedType)
- }
-
- val config = tableEnv.getConfig
-
- val returnType = determineReturnType(
- getRowType,
- expectedType,
- config.getNullCheck,
- config.getEfficientTypeUsage)
-
- val generator = new CodeGenerator(
- config,
- false,
- leftDataSet.getType,
- Some(rightDataSet.getType))
-
- val conversion = generator.generateConverterResultExpression(
- returnType,
- left.getRowType.getFieldNames)
+ val coGroupedDs = leftDataSet.coGroup(rightDataSet)
+ val leftType = leftDataSet.getType
+ val rightType = rightDataSet.getType
- val body = s"""
- |${conversion.code}
- |${generator.collectorTerm}.collect(${conversion.resultTerm});
- |""".stripMargin
+ // If it is atomic type, the field expression need to be "*".
+ // Otherwise, we use int-based field position keys
+ val coGroupedPredicateDs =
+ if (leftType.isTupleType ||
leftType.isInstanceOf[CompositeType[Any]]) {
+ coGroupedDs.where(0 until left.getRowType.getFieldCount: _*)
+ } else {
+ coGroupedDs.where("*")
+ }
- val genFunction = generator.generateFunction(
- ruleDescription,
- classOf[FlatJoinFunction[Any, Any, Any]],
- body,
- returnType)
+ val coGroupedWithoutFunctionDs =
--- End diff --
Same here.
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