public ISqoQuery <TResult> SqoJoin <TInner, TKey, TResult>(IEnumerable <TInner> inner, Expression <Func <T, TKey> > outerKeySelector, Expression <Func <TInner, TKey> > innerKeySelector, Expression <Func <T, TInner, TResult> > resultSelector) { return(SqoQueryExtensionsImpl.Join(this, inner, outerKeySelector, innerKeySelector, resultSelector)); }