System\Linq\Queryable.cs (1)
241new Func<IQueryable<TOuter>, IEnumerable<TInner>, Expression<Func<TOuter, TKey>>, Expression<Func<TInner, TKey>>, Expression<Func<TOuter, IEnumerable<TInner>, TResult>>, IEqualityComparer<TKey>, IQueryable<TResult>>(GroupJoin).Method,