What's the diameter when longitude is 105.0e before 2003?
CREATE TABLE "dorsa" (
  "name" text,
  "latitude" text,
  "longitude" text,
  "diameter_km" real,
  "year_named" real
);
SELECT SUM("diameter_km") FROM "dorsa" WHERE "longitude"='105.0e' AND "year_named"<2003;