JingsongLi commented on a change in pull request #8629:
[FLINK-12088][table-runtime-blink] Introduce unbounded streaming
inner/left/right/full join operator
URL: https://github.com/apache/flink/pull/8629#discussion_r291041910
##########
File path:
flink-table/flink-table-planner-blink/src/main/scala/org/apache/flink/table/plan/nodes/physical/stream/StreamExecJoin.scala
##########
@@ -123,7 +139,132 @@ class StreamExecJoin(
override protected def translateToPlanInternal(
tableEnv: StreamTableEnvironment): StreamTransformation[BaseRow] = {
- throw new TableException("Implements this")
+
+ val tableConfig = tableEnv.getConfig
+ val returnType = FlinkTypeFactory.toInternalRowType(getRowType).toTypeInfo
+
+ val leftTransform = getInputNodes.get(0).translateToPlan(tableEnv)
+ .asInstanceOf[StreamTransformation[BaseRow]]
+ val rightTransform = getInputNodes.get(1).translateToPlan(tableEnv)
+ .asInstanceOf[StreamTransformation[BaseRow]]
+
+ val leftType = leftTransform.getOutputType.asInstanceOf[BaseRowTypeInfo]
+ val rightType = rightTransform.getOutputType.asInstanceOf[BaseRowTypeInfo]
+
+ val (leftJoinKey, rightJoinKey) =
+ JoinUtil.checkAndGetJoinKeys(keyPairs, getLeft, getRight, allowEmptyKey
= true)
+
+ val leftSelect = KeySelectorUtil.getBaseRowSelector(leftJoinKey, leftType)
+ val rightSelect = KeySelectorUtil.getBaseRowSelector(rightJoinKey,
rightType)
+
+ val leftInputSpec = analyzeJoinInput(left)
+ val rightInputSpec = analyzeJoinInput(right)
+
+ val generatedCondition = generateConditionFunction(tableConfig, leftType,
rightType)
+
+ if (joinType == JoinRelType.ANTI || joinType == JoinRelType.SEMI) {
Review comment:
Why not move this check to constructor?
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