Examples with ExtractCommonExpressionsRule org.apache.hyracks.algebricks.rewriter.rules.ExtractCommonExpressionsRule used on opensource projects

Example 1 with ExtractCommonExpressionsRule

use of org.apache.hyracks.algebricks.rewriter.rules.ExtractCommonExpressionsRule in project asterixdb by apache.

the class RuleCollections method buildPlanCleanupRuleCollection.

public static final List<IAlgebraicRewriteRule> buildPlanCleanupRuleCollection() {
    List<IAlgebraicRewriteRule> planCleanupRules = new LinkedList<>();
    planCleanupRules.add(new SwitchInnerJoinBranchRule());
    planCleanupRules.add(new PushAssignBelowUnionAllRule());
    planCleanupRules.add(new ExtractCommonExpressionsRule());
    planCleanupRules.add(new RemoveRedundantVariablesRule());
    planCleanupRules.add(new PushProjectDownRule());
    planCleanupRules.add(new PushSelectDownRule());
    planCleanupRules.add(new SetClosedRecordConstructorsRule());
    planCleanupRules.add(new IntroduceDynamicTypeCastRule());
    planCleanupRules.add(new IntroduceDynamicTypeCastForExternalFunctionRule());
    planCleanupRules.add(new RemoveUnusedAssignAndAggregateRule());
    planCleanupRules.add(new RemoveCartesianProductWithEmptyBranchRule());
    planCleanupRules.add(new InjectTypeCastForSwitchCaseRule());
    planCleanupRules.add(new InjectTypeCastForUnionRule());
    // Needs to invoke ByNameToByIndexFieldAccessRule as the last logical optimization rule because
    // some rules can push a FieldAccessByName to a place where the name it tries to access is in the closed part.
    // For example, a possible scenario is that a field-access-by-name can be pushed down through UnionAllOperator.
    planCleanupRules.add(new ByNameToByIndexFieldAccessRule());
    return planCleanupRules;
}

Example 2 with ExtractCommonExpressionsRule

use of org.apache.hyracks.algebricks.rewriter.rules.ExtractCommonExpressionsRule in project asterixdb by apache.

the class RuleCollections method buildNormalizationRuleCollection.

public static final List<IAlgebraicRewriteRule> buildNormalizationRuleCollection(ICcApplicationContext appCtx) {
    List<IAlgebraicRewriteRule> normalization = new LinkedList<>();
    normalization.add(new ResolveVariableRule());
    normalization.add(new CheckInsertUpsertReturningRule());
    normalization.add(new IntroduceUnnestForCollectionToSequenceRule());
    normalization.add(new EliminateSubplanRule());
    normalization.add(new EnforceOrderByAfterSubplan());
    normalization.add(new BreakSelectIntoConjunctsRule());
    normalization.add(new ExtractGbyExpressionsRule());
    normalization.add(new ExtractDistinctByExpressionsRule());
    normalization.add(new ExtractOrderExpressionsRule());
    // IntroduceStaticTypeCastRule should go before
    // IntroduceDynamicTypeCastRule to
    // avoid unnecessary dynamic casting
    normalization.add(new IntroduceStaticTypeCastForInsertRule());
    normalization.add(new IntroduceDynamicTypeCastRule());
    normalization.add(new IntroduceDynamicTypeCastForExternalFunctionRule());
    normalization.add(new IntroduceEnforcedListTypeRule());
    normalization.add(new ExtractCommonExpressionsRule());
    // Let PushAggFuncIntoStandaloneAggregateRule run after ExtractCommonExpressionsRule
    // so that PushAggFunc can happen in fewer places.
    normalization.add(new PushAggFuncIntoStandaloneAggregateRule());
    normalization.add(new ListifyUnnestingFunctionRule());
    normalization.add(new ConstantFoldingRule(appCtx));
    normalization.add(new RemoveRedundantSelectRule());
    normalization.add(new UnnestToDataScanRule());
    normalization.add(new MetaFunctionToMetaVariableRule());
    normalization.add(new FuzzyEqRule());
    normalization.add(new SimilarityCheckRule());
    return normalization;
}