CREATE TABLE student (stuid DECIMAL, lname TEXT, fname TEXT, age DECIMAL, sex TEXT, major DECIMAL, advisor DECIMAL, city_code TEXT)
CREATE TABLE club (clubid DECIMAL, clubname TEXT, clubdesc TEXT, clublocation TEXT)
CREATE TABLE member_of_club (stuid DECIMAL, clubid DECIMAL, position TEXT)

Count the number of different positions in the club 'Bootup Baltimore'.
SELECT COUNT(DISTINCT t2.position) FROM club AS t1 JOIN member_of_club AS t2 ON t1.clubid = t2.clubid WHERE t1.clubname = "Bootup Baltimore"
SELECT COUNT(DISTINCT "t2"."position") FROM "club" AS "t1" JOIN "member_of_club" AS "t2" ON "t1"."clubid" = "t2"."clubid" WHERE "Bootup Baltimore" = "t1"."clubname"