CREATE TABLE table_203_112 (id NUMBER, "choke" CLOB, "constriction  ( inch ) " NUMBER, "percentage of lead shot in 30-inch circle at 40 yards" CLOB, "identification  ( notches ) " NUMBER, "identification  ( stars ) \ ( spanish shotguns ) " NUMBER)

which of the 1 notch barrels has the highest constriction ?
SELECT "choke" FROM table_203_112 WHERE "identification (notches)" = '1' ORDER BY "percentage of lead shot in 30-inch circle at 40 yards" DESC LIMIT 1
SELECT "choke" FROM "table_203_112" WHERE "identification (notches)" = '1' ORDER BY "percentage of lead shot in 30-inch circle at 40 yards" DESC FETCH FIRST 1 ROWS ONLY