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https://issues.apache.org/jira/browse/FLINK-6149?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15972464#comment-15972464
]
ASF GitHub Bot commented on FLINK-6149:
---------------------------------------
Github user fhueske commented on a diff in the pull request:
https://github.com/apache/flink/pull/3594#discussion_r111918822
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/rel/logical/FlinkLogicalAggregate.scala
---
@@ -0,0 +1,92 @@
+/*
+ * 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.rel.logical
+
+import java.util.{List => JList}
+
+import org.apache.calcite.plan._
+import org.apache.calcite.rel.RelNode
+import org.apache.calcite.rel.convert.ConverterRule
+import org.apache.calcite.rel.core.{Aggregate, AggregateCall}
+import org.apache.calcite.rel.logical.LogicalAggregate
+import org.apache.calcite.rel.metadata.RelMetadataQuery
+import org.apache.calcite.util.ImmutableBitSet
+import org.apache.flink.table.rel.FlinkConventions
+
+class FlinkLogicalAggregate(
+ cluster: RelOptCluster,
+ traitSet: RelTraitSet,
+ child: RelNode,
+ indicator: Boolean,
+ groupSet: ImmutableBitSet,
+ groupSets: JList[ImmutableBitSet],
+ aggCalls: JList[AggregateCall])
+ extends Aggregate(cluster, traitSet, child, indicator, groupSet,
groupSets, aggCalls)
+ with FlinkLogicalRel {
+
+ override def copy(
+ traitSet: RelTraitSet,
+ input: RelNode,
+ indicator: Boolean,
+ groupSet: ImmutableBitSet,
+ groupSets: JList[ImmutableBitSet],
+ aggCalls: JList[AggregateCall]): Aggregate = {
+ new FlinkLogicalAggregate(cluster, traitSet, input, indicator,
groupSet, groupSets, aggCalls)
+ }
+
+ override def computeSelfCost(planner: RelOptPlanner, metadata:
RelMetadataQuery): RelOptCost = {
+ val child = this.getInput
+ val rowCnt = metadata.getRowCount(child)
+ val rowSize = this.estimateRowSize(child.getRowType)
+ val aggCnt = this.aggCalls.size
+ planner.getCostFactory.makeCost(rowCnt, rowCnt * aggCnt, rowCnt *
rowSize)
+ }
+}
+
+private class FlinkLogicalAggregateConverter
+ extends ConverterRule(
+ classOf[LogicalAggregate],
+ Convention.NONE,
+ FlinkConventions.LOGICAL,
+ "FlinkLogicalAggregateConverter") {
+
+ override def matches(call: RelOptRuleCall): Boolean = {
+ val agg = call.rel(0).asInstanceOf[LogicalAggregate]
+ !agg.containsDistinctCall()
--- End diff --
+1
> add additional flink logical relation nodes
> -------------------------------------------
>
> Key: FLINK-6149
> URL: https://issues.apache.org/jira/browse/FLINK-6149
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Reporter: Kurt Young
> Assignee: Kurt Young
>
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