[
https://issues.apache.org/jira/browse/HIVE-22256?focusedWorklogId=429726&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-429726
]
ASF GitHub Bot logged work on HIVE-22256:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 01/May/20 23:38
Start Date: 01/May/20 23:38
Worklog Time Spent: 10m
Work Description: vineetgarg02 commented on a change in pull request
#1002:
URL: https://github.com/apache/hive/pull/1002#discussion_r418778365
##########
File path: ql/src/java/org/apache/hadoop/hive/ql/parse/CalcitePlanner.java
##########
@@ -2463,6 +2473,15 @@ private RelNode applyPostJoinOrderingTransform(RelNode
basePlan, RelMetadataProv
HiveProjectSortExchangeTransposeRule.INSTANCE,
HiveProjectMergeRule.INSTANCE);
}
+ // 10. We need to expand IN/BETWEEN expressions when loading a
materialized view
Review comment:
Why do we need to call these rules again in post ordering?
##########
File path:
ql/src/java/org/apache/hadoop/hive/ql/optimizer/calcite/rules/HiveInBetweenExpandRule.java
##########
@@ -0,0 +1,198 @@
+/*
+ * 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.hadoop.hive.ql.optimizer.calcite.rules;
+
+import java.util.ArrayList;
+import java.util.List;
+import org.apache.calcite.plan.RelOptRule;
+import org.apache.calcite.plan.RelOptRuleCall;
+import org.apache.calcite.rel.RelNode;
+import org.apache.calcite.rel.core.Filter;
+import org.apache.calcite.rel.core.Join;
+import org.apache.calcite.rel.core.Project;
+import org.apache.calcite.rex.RexBuilder;
+import org.apache.calcite.rex.RexCall;
+import org.apache.calcite.rex.RexNode;
+import org.apache.calcite.rex.RexShuttle;
+import org.apache.calcite.rex.RexUtil;
+import org.apache.calcite.sql.fun.SqlStdOperatorTable;
+import org.apache.hadoop.hive.ql.optimizer.calcite.HiveRelFactories;
+import org.apache.hadoop.hive.ql.optimizer.calcite.translator.RexNodeConverter;
+
+/**
+ * This class contains rules to rewrite IN/BETWEEN clauses into their
+ * corresponding AND/OR versions.
+ * It is the counterpart to {@link HivePointLookupOptimizerRule}.
+ */
+public class HiveInBetweenExpandRule {
+
+ public static final FilterRule FILTER_INSTANCE = new FilterRule();
+ public static final JoinRule JOIN_INSTANCE = new JoinRule();
+ public static final ProjectRule PROJECT_INSTANCE = new ProjectRule();
+
+ /** Rule adapter to apply the transformation to Filter conditions. */
+ private static class FilterRule extends RelOptRule {
+
+ FilterRule() {
+ super(operand(Filter.class, any()), HiveRelFactories.HIVE_BUILDER, null);
+ }
+
+ @Override
+ public void onMatch(RelOptRuleCall call) {
+ final Filter filter = call.rel(0);
+ RexInBetweenExpander expander = new RexInBetweenExpander(
+ filter.getCluster().getRexBuilder());
+ RexNode condition = expander.apply(filter.getCondition());
+
+ if (!expander.modified) {
+ return;
+ }
+
+ RelNode newFilter = filter.copy(filter.getTraitSet(),
+ filter.getInput(), condition);
+
+ call.transformTo(newFilter);
+ }
+ }
+
+ /** Rule adapter to apply the transformation to Join conditions. */
+ private static class JoinRule extends RelOptRule {
+
+ JoinRule() {
+ super(operand(Join.class, any()), HiveRelFactories.HIVE_BUILDER, null);
+ }
+
+ @Override
+ public void onMatch(RelOptRuleCall call) {
+ final Join join = call.rel(0);
+ RexInBetweenExpander expander = new RexInBetweenExpander(
+ join.getCluster().getRexBuilder());
+ RexNode condition = expander.apply(join.getCondition());
+
+ if (!expander.modified) {
+ return;
+ }
+
+ RelNode newJoin = join.copy(join.getTraitSet(),
+ condition,
+ join.getLeft(),
+ join.getRight(),
+ join.getJoinType(),
+ join.isSemiJoinDone());
+
+ call.transformTo(newJoin);
+ }
+ }
+
+ /** Rule adapter to apply the transformation to Project expressions. */
+ private static class ProjectRule extends RelOptRule {
+
+ ProjectRule() {
+ super(operand(Project.class, any()), HiveRelFactories.HIVE_BUILDER,
null);
+ }
+
+ @Override
+ public void onMatch(RelOptRuleCall call) {
+ final Project project = call.rel(0);
+ RexInBetweenExpander expander = new RexInBetweenExpander(
+ project.getCluster().getRexBuilder());
+ List<RexNode> newProjects = new ArrayList<>();
+ for (RexNode expr : project.getProjects()) {
+ newProjects.add(expander.apply(expr));
+ }
+
+ if (!expander.modified) {
+ return;
+ }
+
+ Project newProject = project.copy(project.getTraitSet(),
+ project.getInput(), newProjects, project.getRowType());
+
+ call.transformTo(newProject);
+ }
+ }
+
+
+ /**
+ * Class that transforms IN/BETWEEN clauses in an expression.
+ * If any call is modified, the modified flag will be set to
+ * true after its execution.
+ */
+ private static final class RexInBetweenExpander extends RexShuttle {
+
+ private final RexBuilder rexBuilder;
+ private boolean modified;
+
+ private RexInBetweenExpander(RexBuilder rexBuilder) {
+ this.rexBuilder = rexBuilder;
+ this.modified = false;
+ }
+
+ @Override
+ public RexNode visitCall(final RexCall call) {
+ switch (call.getKind()) {
+ case AND: {
+ boolean[] update = {false};
+ List<RexNode> newOperands = visitList(call.operands, update);
+ if (update[0]) {
+ return RexUtil.composeConjunction(rexBuilder, newOperands);
+ }
+ return call;
+ }
+ case OR: {
+ boolean[] update = {false};
+ List<RexNode> newOperands = visitList(call.operands, update);
+ if (update[0]) {
+ return RexUtil.composeDisjunction(rexBuilder, newOperands);
+ }
+ return call;
+ }
+ case IN: {
+ List<RexNode> newOperands = RexNodeConverter.transformInToOrOperands(
+ call.getOperands(), rexBuilder);
+ if (newOperands == null) {
+ // We could not execute transformation, return expression
+ return call;
+ }
+ modified = true;
+ if (newOperands.size() > 1) {
+ return rexBuilder.makeCall(SqlStdOperatorTable.OR, newOperands);
+ }
+ return newOperands.get(0);
+ }
+ case BETWEEN: {
+ List<RexNode> newOperands = RexNodeConverter.rewriteBetweenChildren(
+ call.getOperands(), rexBuilder);
+ modified = true;
+ if (call.getOperands().get(0).isAlwaysTrue()) {
Review comment:
I am not sure if I understand this. In what case BETWEEN is rewritten
into OR?
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Issue Time Tracking
-------------------
Worklog Id: (was: 429726)
Time Spent: 20m (was: 10m)
> Rewriting fails when `IN` clause has items in different order in MV and query.
> ------------------------------------------------------------------------------
>
> Key: HIVE-22256
> URL: https://issues.apache.org/jira/browse/HIVE-22256
> Project: Hive
> Issue Type: Sub-task
> Components: CBO, Materialized views
> Affects Versions: 3.1.2
> Reporter: Steve Carlin
> Assignee: Jesus Camacho Rodriguez
> Priority: Major
> Labels: pull-request-available
> Attachments: HIVE-22256.01.patch, HIVE-22256.patch, expr2.sql
>
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Rewriting fails on following materialized view and query (script is also
> attached):
> create materialized view view2 stored as orc as (select prod_id, cust_id,
> store_id, sale_date, qty, amt, descr from sales where cust_id in (1,2,3,4,5));
> explain extended select prod_id, cust_id from sales where cust_id in
> (5,1,2,3,4);
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