BEGIN;
CREATE TABLE IF NOT EXISTS studio_designs (
 id uuid PRIMARY KEY,
 layout_id text NOT NULL CHECK (layout_id ~ '^ref-(0[1-9]|1[0-9]|2[0-7])$'),
 name text NOT NULL CHECK (char_length(name) BETWEEN 1 AND 120),
 parameters jsonb NOT NULL CHECK (jsonb_typeof(parameters)='object'),
 revision integer NOT NULL DEFAULT 1 CHECK (revision > 0),
 created_at timestamptz NOT NULL DEFAULT now(),
 updated_at timestamptz NOT NULL DEFAULT now()
);
CREATE INDEX IF NOT EXISTS studio_designs_layout_created ON studio_designs(layout_id,created_at DESC,id DESC);
INSERT INTO schema_migrations(version) VALUES('009_studio_designs');
COMMIT;