NamedExpression¶

NamedExpression is an extension of the Expression abstraction for named expressions (with an ExprId and an optional qualifier).

Contract¶

ExprId¶

exprId: ExprId

Name¶

name: String

Creating NamedExpression¶

newInstance(): NamedExpression

Qualifier¶

qualifier: Seq[String]

toAttribute¶

toAttribute: Attribute

Implementations¶

• Alias
• Attribute
• MultiAlias
• NamedLambdaVariable
• OuterReference
• Star
• UnresolvedAlias
• UnresolvedNamedLambdaVariable

foldable¶

foldable: Boolean

foldable is always false (in order to not remove the alias).

foldable is part of the Expression abstraction.