Aggregate3Project1<A, B, C, D> extension

Extension methods for specifying aggregate functions over rows in a group.

on

• Aggregation<(Expr<A>, Expr<B>, Expr<C>), (Expr<D>)>

Methods

avg<E extends num>(Expr<E?> aggregateBuilder(Expr<A> a, Expr<B> b, Expr<C> c)) → Aggregation<(Expr<A>, Expr<B>, Expr<C>), (Expr<D>, Expr<double?>)>

Available on Aggregation<(Expr<A>, Expr<B>, Expr<C>), (Expr<D>)>, provided by the Aggregate3Project1 extension

Add a AVG aggregate function to this Aggregation.

count() → Aggregation<(Expr<A>, Expr<B>, Expr<C>), (Expr<D>, Expr<int>)>

Available on Aggregation<(Expr<A>, Expr<B>, Expr<C>), (Expr<D>)>, provided by the Aggregate3Project1 extension

Add a COUNT(*) aggregate function to this Aggregation.

max<E extends Comparable>(Expr<E?> aggregateBuilder(Expr<A> a, Expr<B> b, Expr<C> c)) → Aggregation<(Expr<A>, Expr<B>, Expr<C>), (Expr<D>, Expr<E?>)>

Available on Aggregation<(Expr<A>, Expr<B>, Expr<C>), (Expr<D>)>, provided by the Aggregate3Project1 extension

Add a MAX aggregate function to this Aggregation.

min<E extends Comparable>(Expr<E?> aggregateBuilder(Expr<A> a, Expr<B> b, Expr<C> c)) → Aggregation<(Expr<A>, Expr<B>, Expr<C>), (Expr<D>, Expr<E?>)>

Available on Aggregation<(Expr<A>, Expr<B>, Expr<C>), (Expr<D>)>, provided by the Aggregate3Project1 extension

Add a MIN aggregate function to this Aggregation.

sum<E extends num>(Expr<E?> aggregateBuilder(Expr<A> a, Expr<B> b, Expr<C> c)) → Aggregation<(Expr<A>, Expr<B>, Expr<C>), (Expr<D>, Expr<E>)>

Available on Aggregation<(Expr<A>, Expr<B>, Expr<C>), (Expr<D>)>, provided by the Aggregate3Project1 extension

Add a SUM aggregate function to this Aggregation.