What type of surface was played on when julie halard-decugis was the partner on October 8, 2000?
CREATE TABLE "doubles_wins_38" (
  "date" text,
  "tournament" text,
  "surface" text,
  "partner" text,
  "opponent_in_the_final" text,
  "score" text
);
SELECT "surface" FROM "doubles_wins_38" WHERE "partner"='julie halard-decugis' AND "date"='october 8, 2000';