Package io.prestosql.sql.planner.iterative.rule

Class RemoveDuplicateConditions

java.lang.Object

io.prestosql.sql.planner.iterative.rule.ExpressionRewriteRuleSet

io.prestosql.sql.planner.iterative.rule.RemoveDuplicateConditions

public class RemoveDuplicateConditions
extends ExpressionRewriteRuleSet

Flattens and removes duplicate conjuncts or disjuncts. E.g.,

a = 1 AND a = 1

rewrites to:

a = 1

Nested Class Summary

Nested classes/interfaces inherited from class io.prestosql.sql.planner.iterative.rule.ExpressionRewriteRuleSet

ExpressionRewriteRuleSet.ExpressionRewriter

Constructor Summary

Constructors

Constructor	Description
RemoveDuplicateConditions(Metadata metadata)

Method Summary

Methods inherited from class io.prestosql.sql.planner.iterative.rule.ExpressionRewriteRuleSet

aggregationExpressionRewrite, filterExpressionRewrite, joinExpressionRewrite, projectExpressionRewrite, rules, valuesExpressionRewrite

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RemoveDuplicateConditions

public RemoveDuplicateConditions(Metadata metadata)