drop table if exists location;
CREATE TABLE location (
    id INT(10) UNSIGNED AUTO_INCREMENT PRIMARY KEY NOT NULL,
    username VARCHAR(64) DEFAULT '' NOT NULL,
    domain VARCHAR(64) DEFAULT NULL,
    contact VARCHAR(255) DEFAULT '' NOT NULL,
    received VARCHAR(128) DEFAULT NULL,
    path VARCHAR(128) DEFAULT NULL,
    expires DATETIME DEFAULT '2020-05-28 21:32:15' NOT NULL,
    q FLOAT(10,2) DEFAULT 1.0 NOT NULL,
    callid VARCHAR(255) DEFAULT 'Default-Call-ID' NOT NULL,
    cseq INT(11) DEFAULT 1 NOT NULL,
    last_modified DATETIME DEFAULT '1900-01-01 00:00:01' NOT NULL,
    flags INT(11) DEFAULT 0 NOT NULL,
    cflags INT(11) DEFAULT 0 NOT NULL,
    user_agent VARCHAR(255) DEFAULT '' NOT NULL,
    socket VARCHAR(64) DEFAULT NULL,
    methods INT(11) DEFAULT NULL
) ENGINE=MyISAM;

CREATE INDEX account_contact_idx ON location (username, domain, contact);