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* 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.
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package org.apache.vxquery.compiler.rewriter;
import java.util.LinkedList;
import java.util.List;
import edu.uci.ics.hyracks.algebricks.core.rewriter.base.HeuristicOptimizer;
import edu.uci.ics.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.BreakSelectIntoConjunctsRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.ComplexJoinInferenceRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.ConsolidateAssignsRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.ConsolidateSelectsRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.EliminateSubplanRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.EnforceStructuralPropertiesRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.ExtractCommonOperatorsRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.ExtractGbyExpressionsRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.FactorRedundantGroupAndDecorVarsRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.InferTypesRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.InlineAssignIntoAggregateRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.InlineVariablesRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.IntroduceAggregateCombinerRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.IntroduceGroupByCombinerRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.IsolateHyracksOperatorsRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.PullSelectOutOfEqJoin;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.PushLimitDownRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.PushProjectDownRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.PushProjectIntoDataSourceScanRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.PushSelectDownRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.PushSelectIntoJoinRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.ReinferAllTypesRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.RemoveUnusedAssignAndAggregateRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.SetAlgebricksPhysicalOperatorsRule;
import edu.uci.ics.hyracks.algebricks.rewriter.rules.SetExecutionModeRule;
public class RewriteRuleset {
public final static List<IAlgebraicRewriteRule> buildTypeInferenceRuleCollection() {
List<IAlgebraicRewriteRule> typeInfer = new LinkedList<IAlgebraicRewriteRule>();
typeInfer.add(new InferTypesRule());
return typeInfer;
}
public final static List<IAlgebraicRewriteRule> buildNormalizationRuleCollection() {
List<IAlgebraicRewriteRule> normalization = new LinkedList<IAlgebraicRewriteRule>();
normalization.add(new EliminateSubplanRule());
normalization.add(new BreakSelectIntoConjunctsRule());
normalization.add(new PushSelectIntoJoinRule());
normalization.add(new ExtractGbyExpressionsRule());
return normalization;
}
public final static List<IAlgebraicRewriteRule> buildCondPushDownRuleCollection() {
List<IAlgebraicRewriteRule> condPushDown = new LinkedList<IAlgebraicRewriteRule>();
condPushDown.add(new PushSelectDownRule());
condPushDown.add(new InlineVariablesRule());
condPushDown.add(new FactorRedundantGroupAndDecorVarsRule());
condPushDown.add(new EliminateSubplanRule());
return condPushDown;
}
public final static List<IAlgebraicRewriteRule> buildJoinInferenceRuleCollection() {
List<IAlgebraicRewriteRule> joinInference = new LinkedList<IAlgebraicRewriteRule>();
joinInference.add(new InlineVariablesRule());
joinInference.add(new ComplexJoinInferenceRule());
return joinInference;
}
public final static List<IAlgebraicRewriteRule> buildOpPushDownRuleCollection() {
List<IAlgebraicRewriteRule> opPushDown = new LinkedList<IAlgebraicRewriteRule>();
opPushDown.add(new PushProjectDownRule());
opPushDown.add(new PushSelectDownRule());
return opPushDown;
}
public final static List<IAlgebraicRewriteRule> buildDataExchangeRuleCollection() {
List<IAlgebraicRewriteRule> dataExchange = new LinkedList<IAlgebraicRewriteRule>();
dataExchange.add(new SetExecutionModeRule());
return dataExchange;
}
public final static List<IAlgebraicRewriteRule> buildConsolidationRuleCollection() {
List<IAlgebraicRewriteRule> consolidation = new LinkedList<IAlgebraicRewriteRule>();
consolidation.add(new ConsolidateSelectsRule());
consolidation.add(new ConsolidateAssignsRule());
consolidation.add(new InlineAssignIntoAggregateRule());
consolidation.add(new IntroduceGroupByCombinerRule());
consolidation.add(new IntroduceAggregateCombinerRule());
consolidation.add(new RemoveUnusedAssignAndAggregateRule());
return consolidation;
}
public final static List<IAlgebraicRewriteRule> buildPhysicalRewritesAllLevelsRuleCollection() {
List<IAlgebraicRewriteRule> physicalPlanRewrites = new LinkedList<IAlgebraicRewriteRule>();
physicalPlanRewrites.add(new PullSelectOutOfEqJoin());
physicalPlanRewrites.add(new SetAlgebricksPhysicalOperatorsRule());
physicalPlanRewrites.add(new EnforceStructuralPropertiesRule());
physicalPlanRewrites.add(new PushProjectDownRule());
physicalPlanRewrites.add(new PushLimitDownRule());
return physicalPlanRewrites;
}
public final static List<IAlgebraicRewriteRule> buildPhysicalRewritesTopLevelRuleCollection() {
List<IAlgebraicRewriteRule> physicalPlanRewrites = new LinkedList<IAlgebraicRewriteRule>();
physicalPlanRewrites.add(new PushLimitDownRule());
return physicalPlanRewrites;
}
public final static List<IAlgebraicRewriteRule> prepareForJobGenRuleCollection() {
List<IAlgebraicRewriteRule> prepareForJobGenRewrites = new LinkedList<IAlgebraicRewriteRule>();
prepareForJobGenRewrites.add(new IsolateHyracksOperatorsRule(
HeuristicOptimizer.hyraxOperatorsBelowWhichJobGenIsDisabled));
prepareForJobGenRewrites.add(new ExtractCommonOperatorsRule());
// Re-infer all types, so that, e.g., the effect of not-is-null is
// propagated.
prepareForJobGenRewrites.add(new PushProjectIntoDataSourceScanRule());
prepareForJobGenRewrites.add(new ReinferAllTypesRule());
return prepareForJobGenRewrites;
}
}