CREATE TABLE "stratford_district" (
  "name" text,
  "years" text,
  "area" text,
  "authority" text,
  "decile" real,
  "roll" text
);

Question: What is the lowest decile with a state authority and Midhirst school?
SQL: SELECT MIN("decile") FROM "stratford_district" WHERE "authority"='state' AND "name"='midhirst school';