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https://issues.apache.org/jira/browse/FLINK-9713?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16619329#comment-16619329
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ASF GitHub Bot commented on FLINK-9713:
---------------------------------------
pnowojski commented on a change in pull request #6299: [FLINK-9713][table][sql]
Support processing time versioned joins
URL: https://github.com/apache/flink/pull/6299#discussion_r218423118
##########
File path:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/plan/rules/datastream/DataStreamTemporalTableJoinRule.scala
##########
@@ -0,0 +1,78 @@
+/*
+ * 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.plan.rules.datastream
+
+import org.apache.calcite.plan.{RelOptRule, RelOptRuleCall, RelTraitSet}
+import org.apache.calcite.rel.RelNode
+import org.apache.calcite.rel.convert.ConverterRule
+import org.apache.calcite.rel.core.JoinRelType
+import org.apache.flink.table.api.TableConfig
+import org.apache.flink.table.plan.nodes.FlinkConventions
+import org.apache.flink.table.plan.nodes.datastream.DataStreamTemporalTableJoin
+import org.apache.flink.table.plan.nodes.logical.FlinkLogicalTemporalTableJoin
+import org.apache.flink.table.plan.schema.RowSchema
+import org.apache.flink.table.runtime.join.WindowJoinUtil
+
+class DataStreamTemporalTableJoinRule
+ extends ConverterRule(
+ classOf[FlinkLogicalTemporalTableJoin],
+ FlinkConventions.LOGICAL,
+ FlinkConventions.DATASTREAM,
+ "DataStreamTemporalTableJoinRule") {
+
+ override def matches(call: RelOptRuleCall): Boolean = {
+ val join: FlinkLogicalTemporalTableJoin = call.rel(0)
+ val joinInfo = join.analyzeCondition
+
+ val (windowBounds, remainingPreds) =
WindowJoinUtil.extractWindowBoundsFromPredicate(
Review comment:
ok :(
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> Support versioned joins in planning phase
> -----------------------------------------
>
> Key: FLINK-9713
> URL: https://issues.apache.org/jira/browse/FLINK-9713
> Project: Flink
> Issue Type: Sub-task
> Components: Table API & SQL
> Affects Versions: 1.5.0
> Reporter: Piotr Nowojski
> Assignee: Piotr Nowojski
> Priority: Major
> Labels: pull-request-available
>
> Queries like:
> {code:java}
> SELECT
> o.amount * r.rate
> FROM
> Orders AS o,
> LATERAL TABLE (Rates(o.rowtime)) AS r
> WHERE o.currency = r.currency{code}
> should evaluate to valid plan with versioned joins plan node.
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