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new 4d762c2bdc0 [FLINK-34162][table] Migrate LogicalUnnestRule to java
4d762c2bdc0 is described below
commit 4d762c2bdc0720e1bf2615e3d30a5741c4688212
Author: Sergey Nuyanzin <[email protected]>
AuthorDate: Mon Apr 8 11:07:28 2024 +0200
[FLINK-34162][table] Migrate LogicalUnnestRule to java
---
.../plan/rules/logical/LogicalUnnestRule.java | 180 +++++++++++++++++++++
.../plan/rules/logical/LogicalUnnestRule.scala | 133 ---------------
2 files changed, 180 insertions(+), 133 deletions(-)
diff --git
a/flink-table/flink-table-planner/src/main/java/org/apache/flink/table/planner/plan/rules/logical/LogicalUnnestRule.java
b/flink-table/flink-table-planner/src/main/java/org/apache/flink/table/planner/plan/rules/logical/LogicalUnnestRule.java
new file mode 100644
index 00000000000..ffa884eed5f
--- /dev/null
+++
b/flink-table/flink-table-planner/src/main/java/org/apache/flink/table/planner/plan/rules/logical/LogicalUnnestRule.java
@@ -0,0 +1,180 @@
+/*
+ * 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.rules.logical;
+
+import org.apache.flink.table.functions.BuiltInFunctionDefinitions;
+import org.apache.flink.table.planner.calcite.FlinkTypeFactory;
+import org.apache.flink.table.planner.functions.bridging.BridgingSqlFunction;
+import org.apache.flink.table.planner.utils.ShortcutUtils;
+import org.apache.flink.table.runtime.functions.table.UnnestRowsFunction;
+import org.apache.flink.table.types.logical.LogicalType;
+
+import org.apache.flink.shaded.guava31.com.google.common.collect.ImmutableList;
+
+import org.apache.calcite.plan.RelOptCluster;
+import org.apache.calcite.plan.RelOptRuleCall;
+import org.apache.calcite.plan.RelRule;
+import org.apache.calcite.plan.hep.HepRelVertex;
+import org.apache.calcite.rel.RelNode;
+import org.apache.calcite.rel.core.Correlate;
+import org.apache.calcite.rel.core.Uncollect;
+import org.apache.calcite.rel.logical.LogicalCorrelate;
+import org.apache.calcite.rel.logical.LogicalFilter;
+import org.apache.calcite.rel.logical.LogicalProject;
+import org.apache.calcite.rel.logical.LogicalTableFunctionScan;
+import org.apache.calcite.rel.type.RelDataType;
+import org.apache.calcite.rex.RexNode;
+import org.immutables.value.Value;
+
+import java.util.Collections;
+import java.util.Map;
+
+import static
org.apache.flink.table.types.logical.utils.LogicalTypeUtils.toRowType;
+
+/**
+ * Planner rule that rewrites UNNEST to explode function.
+ *
+ * <p>Note: This class can only be used in HepPlanner.
+ */
[email protected]
+public class LogicalUnnestRule extends
RelRule<LogicalUnnestRule.LogicalUnnestRuleConfig> {
+
+ public static final LogicalUnnestRule INSTANCE =
LogicalUnnestRuleConfig.DEFAULT.toRule();
+
+ public LogicalUnnestRule(LogicalUnnestRule.LogicalUnnestRuleConfig config)
{
+ super(config);
+ }
+
+ public boolean matches(RelOptRuleCall call) {
+ LogicalCorrelate join = call.rel(0);
+ RelNode right = getRel(join.getRight());
+ if (right instanceof LogicalFilter) {
+ LogicalFilter logicalFilter = (LogicalFilter) right;
+ RelNode relNode = getRel(logicalFilter.getInput());
+ if (relNode instanceof Uncollect) {
+ return !((Uncollect) relNode).withOrdinality;
+ } else if (relNode instanceof LogicalProject) {
+ LogicalProject logicalProject = (LogicalProject) relNode;
+ relNode = getRel(logicalProject.getInput());
+ if (relNode instanceof Uncollect) {
+ return !((Uncollect) relNode).withOrdinality;
+ }
+ return false;
+ }
+ } else if (right instanceof LogicalProject) {
+ LogicalProject logicalProject = (LogicalProject) right;
+ RelNode relNode = getRel(logicalProject.getInput());
+ if (relNode instanceof Uncollect) {
+ Uncollect uncollect = (Uncollect) relNode;
+ return !uncollect.withOrdinality;
+ }
+ return false;
+ } else if (right instanceof Uncollect) {
+ Uncollect uncollect = (Uncollect) right;
+ return !uncollect.withOrdinality;
+ }
+ return false;
+ }
+
+ public void onMatch(RelOptRuleCall call) {
+ LogicalCorrelate correlate = call.rel(0);
+ RelNode outer = getRel(correlate.getLeft());
+ RelNode array = getRel(correlate.getRight());
+
+ // convert unnest into table function scan
+ RelNode tableFunctionScan = convert(array, correlate);
+ // create correlate with table function scan as input
+ Correlate newCorrelate =
+ correlate.copy(correlate.getTraitSet(),
ImmutableList.of(outer, tableFunctionScan));
+ call.transformTo(newCorrelate);
+ }
+
+ private RelNode convert(RelNode relNode, LogicalCorrelate correlate) {
+ if (relNode instanceof HepRelVertex) {
+ HepRelVertex hepRelVertex = (HepRelVertex) relNode;
+ relNode = convert(getRel(hepRelVertex), correlate);
+ }
+ if (relNode instanceof LogicalProject) {
+ LogicalProject logicalProject = (LogicalProject) relNode;
+ return logicalProject.copy(
+ logicalProject.getTraitSet(),
+
ImmutableList.of(convert(getRel(logicalProject.getInput()), correlate)));
+ }
+ if (relNode instanceof LogicalFilter) {
+ LogicalFilter logicalFilter = (LogicalFilter) relNode;
+ return logicalFilter.copy(
+ logicalFilter.getTraitSet(),
+ ImmutableList.of(convert(getRel(logicalFilter.getInput()),
correlate)));
+ }
+ if (relNode instanceof Uncollect) {
+ Uncollect uncollect = (Uncollect) relNode;
+ RelOptCluster cluster = correlate.getCluster();
+ FlinkTypeFactory typeFactory =
ShortcutUtils.unwrapTypeFactory(cluster);
+ RelDataType relDataType =
+ (RelDataType)
+ ((Map.Entry)
uncollect.getInput().getRowType().getFieldList().get(0))
+ .getValue();
+ LogicalType logicalType =
FlinkTypeFactory.toLogicalType(relDataType);
+ BridgingSqlFunction sqlFunction =
+ BridgingSqlFunction.of(
+ cluster,
BuiltInFunctionDefinitions.INTERNAL_UNNEST_ROWS);
+ RexNode rexCall =
+ cluster.getRexBuilder()
+ .makeCall(
+ typeFactory.createFieldTypeFromLogicalType(
+ toRowType(
+
UnnestRowsFunction.getUnnestedType(
+ logicalType))),
+ sqlFunction,
+ ((LogicalProject)
getRel(uncollect.getInput())).getProjects());
+ return new LogicalTableFunctionScan(
+ cluster,
+ correlate.getTraitSet(),
+ Collections.emptyList(),
+ rexCall,
+ null,
+ rexCall.getType(),
+ null);
+ } else {
+ throw new IllegalArgumentException("Unexpected input: " + relNode);
+ }
+ }
+
+ private RelNode getRel(RelNode rel) {
+ if (rel instanceof HepRelVertex) {
+ return ((HepRelVertex) rel).getCurrentRel();
+ }
+ return rel;
+ }
+
+ /** Rule configuration. */
+ @Value.Immutable(singleton = false)
+ public interface LogicalUnnestRuleConfig extends RelRule.Config {
+ LogicalUnnestRuleConfig DEFAULT =
+ ImmutableLogicalUnnestRule.LogicalUnnestRuleConfig.builder()
+ .build()
+ .withOperandSupplier(b0 ->
b0.operand(LogicalCorrelate.class).anyInputs())
+ .withDescription("LogicalUnnestRule");
+
+ @Override
+ default LogicalUnnestRule toRule() {
+ return new LogicalUnnestRule(this);
+ }
+ }
+}
diff --git
a/flink-table/flink-table-planner/src/main/scala/org/apache/flink/table/planner/plan/rules/logical/LogicalUnnestRule.scala
b/flink-table/flink-table-planner/src/main/scala/org/apache/flink/table/planner/plan/rules/logical/LogicalUnnestRule.scala
deleted file mode 100644
index ed096096e58..00000000000
---
a/flink-table/flink-table-planner/src/main/scala/org/apache/flink/table/planner/plan/rules/logical/LogicalUnnestRule.scala
+++ /dev/null
@@ -1,133 +0,0 @@
-/*
- * 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.rules.logical
-
-import org.apache.flink.table.functions.BuiltInFunctionDefinitions
-import org.apache.flink.table.planner.calcite.FlinkTypeFactory
-import org.apache.flink.table.planner.functions.bridging.BridgingSqlFunction
-import org.apache.flink.table.planner.utils.ShortcutUtils
-import org.apache.flink.table.runtime.functions.table.UnnestRowsFunction
-import org.apache.flink.table.types.logical.utils.LogicalTypeUtils.toRowType
-
-import com.google.common.collect.ImmutableList
-import org.apache.calcite.plan.{RelOptRule, RelOptRuleCall, RelOptRuleOperand}
-import org.apache.calcite.plan.RelOptRule._
-import org.apache.calcite.plan.hep.HepRelVertex
-import org.apache.calcite.rel.RelNode
-import org.apache.calcite.rel.core.Uncollect
-import org.apache.calcite.rel.logical._
-
-import java.util.Collections
-
-/**
- * Planner rule that rewrites UNNEST to explode function.
- *
- * Note: This class can only be used in HepPlanner.
- */
-class LogicalUnnestRule(operand: RelOptRuleOperand, description: String)
- extends RelOptRule(operand, description) {
-
- override def matches(call: RelOptRuleCall): Boolean = {
- val join: LogicalCorrelate = call.rel(0)
- val right = getRel(join.getRight)
-
- right match {
- // a filter is pushed above the table function
- case filter: LogicalFilter =>
- getRel(filter.getInput) match {
- case u: Uncollect => !u.withOrdinality
- case p: LogicalProject =>
- getRel(p.getInput) match {
- case u: Uncollect => !u.withOrdinality
- case _ => false
- }
- case _ => false
- }
- case project: LogicalProject =>
- getRel(project.getInput) match {
- case u: Uncollect => !u.withOrdinality
- case _ => false
- }
- case u: Uncollect => !u.withOrdinality
- case _ => false
- }
- }
-
- override def onMatch(call: RelOptRuleCall): Unit = {
- val correlate: LogicalCorrelate = call.rel(0)
- val outer = getRel(correlate.getLeft)
- val array = getRel(correlate.getRight)
-
- def convert(relNode: RelNode): RelNode = {
- relNode match {
- case rs: HepRelVertex =>
- convert(getRel(rs))
-
- case f: LogicalProject =>
- f.copy(f.getTraitSet, ImmutableList.of(convert(getRel(f.getInput))))
-
- case f: LogicalFilter =>
- f.copy(f.getTraitSet, ImmutableList.of(convert(getRel(f.getInput))))
-
- case uc: Uncollect =>
- // convert Uncollect into TableFunctionScan
- val cluster = correlate.getCluster
- val typeFactory = ShortcutUtils.unwrapTypeFactory(cluster)
- val relDataType = uc.getInput.getRowType.getFieldList.get(0).getValue
- val logicalType = FlinkTypeFactory.toLogicalType(relDataType)
-
- val sqlFunction =
- BridgingSqlFunction.of(cluster,
BuiltInFunctionDefinitions.INTERNAL_UNNEST_ROWS)
-
- val rexCall = cluster.getRexBuilder.makeCall(
- typeFactory.createFieldTypeFromLogicalType(
- toRowType(UnnestRowsFunction.getUnnestedType(logicalType))),
- sqlFunction,
- getRel(uc.getInput).asInstanceOf[LogicalProject].getProjects
- )
-
- new LogicalTableFunctionScan(
- cluster,
- correlate.getTraitSet,
- Collections.emptyList(),
- rexCall,
- null,
- rexCall.getType,
- null)
- }
- }
-
- // convert unnest into table function scan
- val tableFunctionScan = convert(array)
- // create correlate with table function scan as input
- val newCorrelate =
- correlate.copy(correlate.getTraitSet, ImmutableList.of(outer,
tableFunctionScan))
- call.transformTo(newCorrelate)
- }
-
- private def getRel(rel: RelNode): RelNode = {
- rel match {
- case vertex: HepRelVertex => vertex.getCurrentRel
- case _ => rel
- }
- }
-}
-
-object LogicalUnnestRule {
- val INSTANCE = new LogicalUnnestRule(operand(classOf[LogicalCorrelate],
any), "LogicalUnnestRule")
-}
