Avg class

SQL AVG(value).

Always produces a floating point number, whatever went in, averaging integers gives a fraction.

Inheritance

Constructors

Avg(ColumnOr<num?> value)
SQL AVG(value).

Properties

hashCode int
The hash code for this object.
no setterinherited
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
transformer ColumnTransformer<double, Object?>?
How this operand's values convert to and from their stored form.
no setterinherited
value ColumnOr<num?>
The column or expression being averaged.
final

Methods

as(String alias) AliasedExpression<double>
Give this expression an output name, as Column.as does for a column.
inherited
asStream() Stream<double>
Creates a Stream containing the result of this future.
inherited
build() SQL
Build the underlying SQL for this expression.
override
catchError(Function onError, {bool test(Object error)?}) Future<double>
Handles errors emitted by this Future.
inherited
decode(Object? input) double?
A stored value back in this operand's own type.
override
encode(double? input) Object?
This operand's value in its stored form.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
then<R>(FutureOr<R> onValue(double value), {Function? onError}) Future<R>
Register callbacks to be called when this future completes.
inherited
timeout(Duration timeLimit, {FutureOr<double> onTimeout()?}) Future<double>
Stop waiting for this future after timeLimit has passed.
inherited
toString() String
A string representation of this object.
inherited
whenComplete(FutureOr<void> action()) Future<double>
Registers a function to be called when this future completes.
inherited

Operators

operator ==(Object other) bool
The equality operator.
inherited