java.lang.Object
- io.prestosql.sql.planner.iterative.rule.PushDownDereferencesThroughAssignUniqueId

public class PushDownDereferencesThroughAssignUniqueId
extends Object
implements Rule<ProjectNode>

Transforms:

  Project(C := f1(A.x), D := f2(B))
      AssignUniqueId
          Source(A, B)

to:

  Project(C := f1(symbol), D := f2(B))
      AssignUniqueId
          Project(A, B, symbol := A.x)
              Source(A, B)

Nested Class Summary
- Nested classes/interfaces inherited from interface io.prestosql.sql.planner.iterative.Rule
  Rule.Context, Rule.Result

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`Rule.Result`	`apply(ProjectNode projectNode, Captures captures, Rule.Context context)`
`Pattern<ProjectNode>`	`getPattern()`	Returns a pattern to which plan nodes this rule applies.

Methods inherited from interface io.prestosql.sql.planner.iterative.Rule
isEnabled

public PushDownDereferencesThroughAssignUniqueId(TypeAnalyzer typeAnalyzer)

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

Class PushDownDereferencesThroughAssignUniqueId