Here's my best attempt:
:SELECT '* :FROM 'filter
:WHERE 'title
:IN (:SELECT 'filter_title :FROM user_filter :WHERE (:= 'user-id 3))
However, I get the following error:
Keyword WHERE takes exactly one argument
I've tried the SQL query in psql so I know it works, but I can't seem to come up with an equivalent s-sql statement.