Class EvaluateFieldReference

java.lang.Object

io.trino.sql.ir.optimizer.rule.EvaluateFieldReference

All Implemented Interfaces:

IrOptimizerRule

public class EvaluateFieldReference
extends Object
implements IrOptimizerRule

Resolves field reference from an explicit row. E.g.,

• Row(a, b, c).0 -> a
• Constant(<row type>, (1, 2, 3)).0 -> 1

Constructor Summary

Constructors

Constructor	Description
EvaluateFieldReference()

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

EvaluateFieldReference

public EvaluateFieldReference()

Method Details

apply

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

Specified by:

apply in interface IrOptimizerRule