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

Class PushProjectionIntoTableScan

java.lang.Object

io.trino.sql.planner.iterative.rule.PushProjectionIntoTableScan

All Implemented Interfaces:

Rule<ProjectNode>

public class PushProjectionIntoTableScan
extends Object
implements Rule<ProjectNode>

Nested Class Summary

Nested classes/interfaces inherited from interface io.trino.sql.planner.iterative.Rule

Rule.Context, Rule.Result

Constructor Summary

Constructors

Constructor	Description
PushProjectionIntoTableScan(Metadata metadata, TypeAnalyzer typeAnalyzer, ScalarStatsCalculator scalarStatsCalculator)

Method Summary

Modifier and Type	Method	Description
Rule.Result	apply(ProjectNode project, Captures captures, Rule.Context context)
Pattern<ProjectNode>	getPattern()	Returns a pattern to which plan nodes this rule applies.
boolean	isEnabled(Session session)

Methods inherited from class java.lang.Object

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

Constructor Detail

PushProjectionIntoTableScan

public PushProjectionIntoTableScan(Metadata metadata,
                                   TypeAnalyzer typeAnalyzer,
                                   ScalarStatsCalculator scalarStatsCalculator)

Method Detail

getPattern

public Pattern<ProjectNode> getPattern()

Description copied from interface: Rule

Returns a pattern to which plan nodes this rule applies.

Specified by:

getPattern in interface Rule<ProjectNode>

isEnabled

public boolean isEnabled(Session session)

Specified by:

isEnabled in interface Rule<ProjectNode>

apply

public Rule.Result apply(ProjectNode project,
                         Captures captures,
                         Rule.Context context)

Specified by:

apply in interface Rule<ProjectNode>