Which Partnering has a Score of 6-3, 4-6, 6-4?
CREATE TABLE "doubles_titles" (
  "date" text,
  "tournament" text,
  "surface" text,
  "partnering" text,
  "opponents_in_the_final" text,
  "score" text
);
SELECT "partnering" FROM "doubles_titles" WHERE "score"='6-3, 4-6, 6-4';