Which distinct state makes beer that has the least amount of bitterness?
SELECT DISTINCT T2.state, T1.ibu FROM beers AS T1 INNER JOIN breweries AS T2 ON T1.brewery_id = T2.id WHERE T1.ibu IS NOT NULL AND T1.ibu = ( SELECT MIN(ibu) FROM beers )
CREATE TABLE breweries
(
    id    INTEGER          not null
        primary key,
    name  TEXT null,
    city  TEXT null,
    state TEXT null
);
CREATE TABLE IF NOT EXISTS "beers"
(
    id         INTEGER not null
        primary key,
    brewery_id INTEGER not null
        constraint beers_ibfk_1
            references breweries,
    abv        REAL,
    ibu        REAL,
    name       TEXT    not null,
    style      TEXT,
    ounces     REAL    not null
);
CREATE INDEX brewery_id
    on beers (brewery_id);
