| SortedMergeTSource(IEnumerableTSource, OrderByDirection, IEnumerableTSource) | Merges two or more sequences that are in a common order (either ascending or descending) into a single sequence that preserves that order. |
| SortedMergeTSource(IEnumerableTSource, OrderByDirection, IComparerTSource, IEnumerableTSource) | Merges two or more sequences that are in a common order (either ascending or descending) into a single sequence that preserves that order. |