public <TCollection, TResult> Queryable<TResult> selectMany(
FunctionExpression<Function2<T, Integer, Enumerable<TCollection>>> collectionSelector,
FunctionExpression<Function2<T, TCollection, TResult>> resultSelector) {
return factory.selectMany(getThis(), collectionSelector, resultSelector);
}
public <TResult> Queryable<TResult> selectMany(
FunctionExpression<Function1<T, Enumerable<TResult>>> selector) {
return factory.selectMany(getThis(), selector);
}