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ASF GitHub Bot commented on DRILL-3993: --------------------------------------- Github user amansinha100 commented on a diff in the pull request: https://github.com/apache/drill/pull/1066#discussion_r157853167 --- Diff: exec/java-exec/src/main/java/org/apache/drill/exec/planner/DrillRelBuilder.java --- @@ -0,0 +1,69 @@ +/* + * 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.drill.exec.planner; + +import org.apache.calcite.plan.Context; +import org.apache.calcite.plan.Contexts; +import org.apache.calcite.plan.RelOptCluster; +import org.apache.calcite.plan.RelOptSchema; +import org.apache.calcite.rel.RelNode; +import org.apache.calcite.rel.core.RelFactories; +import org.apache.calcite.tools.RelBuilder; +import org.apache.calcite.tools.RelBuilderFactory; +import org.apache.calcite.util.Util; + +public class DrillRelBuilder extends RelBuilder { + private final RelFactories.FilterFactory filterFactory; + + protected DrillRelBuilder(Context context, RelOptCluster cluster, RelOptSchema relOptSchema) { + super(context, cluster, relOptSchema); + this.filterFactory = + Util.first(context.unwrap(RelFactories.FilterFactory.class), + RelFactories.DEFAULT_FILTER_FACTORY); + } + + /** + * Original method {@link RelBuilder#empty} returns empty values rel. + * In the order to preserve dara row types, filter with false predicate is created. --- End diff -- 'data' spelling > Rebase Drill on Calcite master branch > ------------------------------------- > > Key: DRILL-3993 > URL: https://issues.apache.org/jira/browse/DRILL-3993 > Project: Apache Drill > Issue Type: Bug > Components: Query Planning & Optimization > Affects Versions: 1.2.0 > Reporter: Sudheesh Katkam > Assignee: Roman Kulyk > Priority: Major > > Calcite keeps moving, and now we need to catch up to Calcite 1.5, and ensure > there are no regressions. > Also, how do we resolve this 'catching up' issue in the long term? -- This message was sent by Atlassian JIRA (v7.6.3#76005)