What is the total (kg when the bodyweight is more than 57.8, and the clean & jerk is less than 103?
CREATE TABLE "lightweight_58_kg" (
  "name" text,
  "bodyweight" real,
  "snatch" real,
  "clean_jerk" real,
  "total_kg" real
);
SELECT SUM("total_kg") FROM "lightweight_58_kg" WHERE "bodyweight">57.8 AND "clean_jerk"<103;