Package io.trino.sql.planner.iterative.rule

Class UnwrapDateTruncInComparison

java.lang.Object

io.trino.sql.planner.iterative.rule.ExpressionRewriteRuleSet

io.trino.sql.planner.iterative.rule.UnwrapDateTruncInComparison

public class UnwrapDateTruncInComparison
extends ExpressionRewriteRuleSet

Given constant temporal unit U and a constant date/time expression t that's rounded to unit, converts expression of the form

     date_trunc(unit, date_time) = t
 

into

     date_time BETWEEN t AND (t + unit)
 

It also applies to comparison operators other than equality and detects expressions that are known to be true or false, e.g. date_trunc('month', ...) = DATE '2005-09-10' is known to be false.

See Also:

• UnwrapCastInComparison

Nested Class Summary

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

ExpressionRewriteRuleSet.ExpressionRewriter

Constructor Summary

Constructors

Constructor	Description
UnwrapDateTruncInComparison(PlannerContext plannerContext, TypeAnalyzer typeAnalyzer)

Method Summary

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

aggregationExpressionRewrite, filterExpressionRewrite, joinExpressionRewrite, patternRecognitionExpressionRewrite, projectExpressionRewrite, rules, valuesExpressionRewrite

Methods inherited from class java.lang.Object

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

Constructor Details

UnwrapDateTruncInComparison

public UnwrapDateTruncInComparison(PlannerContext plannerContext,
 TypeAnalyzer typeAnalyzer)