College of san diego state, and a Pick # smaller than 30 is what lowest overall?
CREATE TABLE "indianapolis_colts_draft_history" (
  "round" real,
  "pick_num" real,
  "overall" real,
  "name" text,
  "position" text,
  "college" text
);
SELECT MIN("overall") FROM "indianapolis_colts_draft_history" WHERE "college"='san diego state' AND "pick_num"<30;