Package io.trino.sql.ir.optimizer.rule

Class SimplifyRedundantCast

java.lang.Object

io.trino.sql.ir.optimizer.rule.SimplifyRedundantCast

All Implemented Interfaces:

IrOptimizerRule

public class SimplifyRedundantCast
extends Object
implements IrOptimizerRule

Remove casts where the target type matches the type of the input expression. E.g,

• Cast(x::bigint, bigint) -> x

Constructor Summary

Constructors

Constructor	Description
SimplifyRedundantCast()

Method Summary

Modifier and Type	Method	Description
Optional<Expression>	apply(Expression expression, Session session, Map<Symbol,Expression> bindings)

Methods inherited from class java.lang.Object

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

Constructor Details

SimplifyRedundantCast

public SimplifyRedundantCast()

Method Details

apply

public Optional<Expression> apply(Expression expression,
 Session session,
 Map<Symbol,Expression> bindings)

Specified by:

apply in interface IrOptimizerRule