BEGIN;

CREATE TABLE histogram(
 id INTEGER PRIMARY KEY AUTOINCREMENT,
 device TEXT DEFAULT NULL,
 count INTEGER DEFAULT 0
);

CREATE UNIQUE INDEX his_device_idx ON histogram (device);

CREATE TABLE eps(
 id INTEGER PRIMARY KEY AUTOINCREMENT,
 stamp INTEGER DEFAULT 0,
 device TEXT DEFAULT NULL,
 eps INTEGER DEFAULT 0
);

CREATE INDEX eps_stamp_idx ON eps (stamp);

COMMIT;