PostgreSQL/String Functions/to ascii
to_ascii("Multibyte Source", "LATIN1")
postgres=# SELECT to_ascii("Multibyte Source", "LATIN1");
to_ascii
------------------
Multibyte Source
(1 row)
postgres=# SELECT to_ascii("Multibyte Source", "LATIN1");
to_ascii
------------------
Multibyte Source
(1 row)