CREATE TABLE "california" (
  "district" text,
  "incumbent" text,
  "party" text,
  "first_elected" real,
  "result" text
);

Question: Which party had a Retired Democratic hold?
SQL: SELECT "party" FROM "california" WHERE "result"='retired democratic hold';

Question: What's the average year Charles N. Felton was re-elected?
SQL: SELECT AVG("first_elected") FROM "california" WHERE "result"='re-elected' AND "incumbent"='charles n. felton';

Question: What year was Barclay Henley first elected?
SQL: SELECT COUNT("first_elected") FROM "california" WHERE "incumbent"='barclay henley';