hequn8128 commented on a change in pull request #11051: [FLINK-15961][table-planner][table-planner-blink] Introduce Python Physical Correlate RelNodes which are containers for Python TableFunction URL: https://github.com/apache/flink/pull/11051#discussion_r379968783
########## File path: flink-table/flink-table-planner-blink/src/main/scala/org/apache/flink/table/planner/plan/nodes/physical/stream/StreamExecCorrelateBase.scala ########## @@ -0,0 +1,103 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.flink.table.planner.plan.nodes.physical.stream + +import org.apache.flink.table.dataformat.BaseRow +import org.apache.flink.table.planner.delegation.StreamPlanner +import org.apache.flink.table.planner.functions.utils.TableSqlFunction +import org.apache.flink.table.planner.plan.nodes.exec.{ExecNode, StreamExecNode} +import org.apache.flink.table.planner.plan.nodes.logical.FlinkLogicalTableFunctionScan +import org.apache.flink.table.planner.plan.utils.RelExplainUtil + +import org.apache.calcite.plan.{RelOptCluster, RelTraitSet} +import org.apache.calcite.rel.`type`.RelDataType +import org.apache.calcite.rel.core.JoinRelType +import org.apache.calcite.rel.{RelNode, RelWriter, SingleRel} +import org.apache.calcite.rex.{RexCall, RexNode, RexProgram} + +import java.util + +import scala.collection.JavaConversions._ + +/** + * Base Flink RelNode which matches along with join a user defined table function. + */ +abstract class StreamExecCorrelateBase( + cluster: RelOptCluster, + traitSet: RelTraitSet, + inputRel: RelNode, + val projectProgram: Option[RexProgram], + scan: FlinkLogicalTableFunctionScan, + condition: Option[RexNode], + outputRowType: RelDataType, + joinType: JoinRelType) + extends SingleRel(cluster, traitSet, inputRel) + with StreamPhysicalRel + with StreamExecNode[BaseRow] { + + require(joinType == JoinRelType.INNER || joinType == JoinRelType.LEFT) + + override def producesUpdates: Boolean = false + + override def needsUpdatesAsRetraction(input: RelNode): Boolean = false + + override def consumesRetractions: Boolean = false + + override def producesRetractions: Boolean = false + + override def requireWatermark: Boolean = false + + override def deriveRowType(): RelDataType = outputRowType + + override def copy(traitSet: RelTraitSet, inputs: java.util.List[RelNode]): RelNode = { + copy(traitSet, inputs.get(0), projectProgram, outputRowType) + } + + /** + * Note: do not passing member 'child' because singleRel.replaceInput may update 'input' rel. + */ + def copy( + traitSet: RelTraitSet, + newChild: RelNode, + projectProgram: Option[RexProgram], + outputType: RelDataType): RelNode + + override def explainTerms(pw: RelWriter): RelWriter = { + val rexCall = scan.getCall.asInstanceOf[RexCall] + val sqlFunction = rexCall.getOperator.asInstanceOf[TableSqlFunction] Review comment: The test failed due to this line. We can remove this line as it has never been used. Remember to remove the useless import after removing this line. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected] With regards, Apache Git Services
