CREATE TABLE "winners" (
  "year" real,
  "men_s_singles" text,
  "women_s_singles" text,
  "men_s_doubles" text,
  "women_s_doubles" text,
  "mixed_doubles" text
);

Question: Name the least year for david eddy
SQL: SELECT MIN("year") FROM "winners" WHERE "men_s_singles"='david eddy';

Question: Name the mixed doubles for year before 1991 and men's doubles of david jepson buck ryan
SQL: SELECT "mixed_doubles" FROM "winners" WHERE "year"<1991 AND "men_s_doubles"='david jepson buck ryan';

Question: Name the women's doubles for year less than 1972
SQL: SELECT "women_s_doubles" FROM "winners" WHERE "year"<1972;