Is there a function in SAP HANA which has the same semantics as `age` in PostgreSQL, that is, which returns the difference between a given time stamp and the current time stamp? 

I know 

```
ADD_YEARS(COLUMN_NAME, 2) <= NOW()

```

in SAP HANA would correspond to

```
(extract (year from age( COLUMN_NAME )) <= 2 ) 

```

in PostgreSQL. Unfortunately, this is not an option for me, since I don't have the information `<= 2`. What I am looking for is a way to translate `age(COLUMN_NAME)` (PostgreSQL) to SAP HANA.

Any ideas?