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

Example 1 with CopyLimitDownRule

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

the class PigletRewriteRuleset method buildPhysicalRewritesAllLevelsRuleCollection.

public static final 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 CopyLimitDownRule());
    return physicalPlanRewrites;
}

Example 2 with CopyLimitDownRule

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

the class RuleCollections method buildPhysicalRewritesTopLevelRuleCollection.

public static final List<IAlgebraicRewriteRule> buildPhysicalRewritesTopLevelRuleCollection(ICcApplicationContext appCtx) {
    List<IAlgebraicRewriteRule> physicalRewritesTopLevel = new LinkedList<>();
    physicalRewritesTopLevel.add(new PushNestedOrderByUnderPreSortedGroupByRule());
    physicalRewritesTopLevel.add(new CopyLimitDownRule());
    // CopyLimitDownRule may generates non-topmost limits with numeric_adds functions.
    // We are going to apply a constant folding rule again for this case.
    physicalRewritesTopLevel.add(new ConstantFoldingRule(appCtx));
    physicalRewritesTopLevel.add(new PushLimitIntoOrderByRule());
    physicalRewritesTopLevel.add(new IntroduceProjectsRule());
    physicalRewritesTopLevel.add(new SetAlgebricksPhysicalOperatorsRule());
    physicalRewritesTopLevel.add(new IntroduceRapidFrameFlushProjectAssignRule());
    physicalRewritesTopLevel.add(new SetExecutionModeRule());
    physicalRewritesTopLevel.add(new IntroduceRandomPartitioningFeedComputationRule());
    return physicalRewritesTopLevel;
}

Example 3 with CopyLimitDownRule

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

the class PigletRewriteRuleset method buildPhysicalRewritesTopLevelRuleCollection.

public static final List<IAlgebraicRewriteRule> buildPhysicalRewritesTopLevelRuleCollection() {
    List<IAlgebraicRewriteRule> physicalPlanRewrites = new LinkedList<IAlgebraicRewriteRule>();
    physicalPlanRewrites.add(new CopyLimitDownRule());
    return physicalPlanRewrites;
}