What is the lowest altitude of the flight with a mach bigger than 0.905 and a duration of 00:06:17?
CREATE TABLE "m2_f3_flights" (
  "vehicle_flight_num" text,
  "date" text,
  "pilot" text,
  "mach" real,
  "velocity_km_h" real,
  "altitude_ft" real,
  "duration" text
);
SELECT MIN("altitude_ft") FROM "m2_f3_flights" WHERE "mach">0.905 AND "duration"='00:06:17';