Tested this out on Postgres and it works:

  SELECT
    name, count(1)
  FROM 
    (VALUES ('Kev',12), ('Meg', 14), ('Kev', 14)) 
  people(name, age)
  GROUP BY
    1

Produces: [[Kev, 2], [Meg, 1]].

But I don't get it. Could someone explain how this works?