Represents an expression that has been assigned an alias using the .as() method.
This class wraps an existing Expression and associates it with a user-defined alias, allowing the expression's result to be referred to by name in the output of a Firestore pipeline query.
Implements
firestore.Pipelines.Selectable
HasUserData
Package
@google-cloud/firestoreConstructors
(constructor)(_expr, _alias)
constructor(_expr: Expression, _alias: string);Constructs a new instance of the AliasedExpression class
| Parameters | |
|---|---|
| Name | Description |
_expr |
Expression
|
_alias |
string
|
Properties
_alias
readonly _alias: string;_expr
readonly _expr: Expression;expressionType
expressionType: firestore.Pipelines.ExpressionType;selectable
selectable: true;