Does Select Exists clause work for MSSQL in Exposed? Mssql does not support using EXISTS() directly in select clause, and it must be wrapped in case statement (SO-post) . However, it seems that Exposed's case().When(..) does not support the

Exists

class returned from the

exists()

function. Example use case: I have Person table and PersonReview table with fk to Person table. I want to select all people and include a bit/bool value if the individual persons have a review or not.