vldpyatkov commented on code in PR #12815: URL: https://github.com/apache/ignite/pull/12815#discussion_r2888604168
########## modules/calcite/src/main/java/org/apache/ignite/internal/processors/query/calcite/rule/logical/IgniteLogicalWindowRewriteRule.java: ########## @@ -0,0 +1,373 @@ +/* + * 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.ignite.internal.processors.query.calcite.rule.logical; + +import java.util.ArrayList; +import java.util.Collections; +import java.util.List; +import java.util.stream.Collectors; +import com.google.common.collect.ImmutableSet; +import org.apache.calcite.plan.RelOptRule; +import org.apache.calcite.plan.RelOptRuleCall; +import org.apache.calcite.plan.RelRule; +import org.apache.calcite.rel.RelCollations; +import org.apache.calcite.rel.RelNode; +import org.apache.calcite.rel.core.AggregateCall; +import org.apache.calcite.rel.core.JoinRelType; +import org.apache.calcite.rel.core.Window; +import org.apache.calcite.rel.logical.LogicalAggregate; +import org.apache.calcite.rel.logical.LogicalJoin; +import org.apache.calcite.rel.logical.LogicalProject; +import org.apache.calcite.rel.logical.LogicalWindow; +import org.apache.calcite.rel.type.RelDataType; +import org.apache.calcite.rel.type.RelDataTypeFactory; +import org.apache.calcite.rex.RexBuilder; +import org.apache.calcite.rex.RexInputRef; +import org.apache.calcite.rex.RexNode; +import org.apache.calcite.rex.RexUtil; +import org.apache.calcite.rex.RexWindowBound; +import org.apache.calcite.sql.ExplicitOperatorBinding; +import org.apache.calcite.sql.SqlAggFunction; +import org.apache.calcite.sql.SqlOperatorBinding; +import org.apache.calcite.sql.fun.SqlStdOperatorTable; +import org.apache.calcite.util.ImmutableBitSet; +import org.apache.ignite.internal.processors.cache.query.IgniteQueryErrorCode; +import org.apache.ignite.internal.processors.query.IgniteSQLException; +import org.immutables.value.Value; + +/** + * Rule that rewrites LogicalWindow to LogicalAggregate LogicalJoin LogicalProject. + * This approach is valid only for unbounded frame. + */ [email protected] +public class IgniteLogicalWindowRewriteRule extends RelRule<IgniteLogicalWindowRewriteRule.Config> { + /** Rule instance. */ + public static final RelOptRule INSTANCE = Config.DEFAULT.toRule(); + + /** + * Constructor. + * + * @param config Rule configuration. + */ + private IgniteLogicalWindowRewriteRule(Config config) { + super(config); + } + + /** {@inheritDoc} */ + @Override public void onMatch(RelOptRuleCall call) { + LogicalWindow win = call.rel(0); + + if (win.groups.size() > 1) { + RelNode input = win.getInput(); + RelDataTypeFactory typeFactory = win.getCluster().getTypeFactory(); + + for (LogicalWindow.Group grp : win.groups) { + RelDataType joinRowType = buildWindowRowType(typeFactory, input, grp); Review Comment: Because we will invoke it in transforTo after group decomposition anyway. -- 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. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
