CREATE TABLE addressbooks (
    id INT(11) UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
    principaluri VARCHAR(255),
    displayname VARCHAR(255),
    uri VARCHAR(100),
    description TEXT,
    ctag INT(11) UNSIGNED NOT NULL DEFAULT '1',
    UNIQUE(principaluri, uri)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

CREATE TABLE cards (
    id INT(11) UNSIGNED NOT NULL PRIMARY KEY AUTO_INCREMENT,
    addressbookid INT(11) UNSIGNED NOT NULL,
    carddata MEDIUMBLOB,
    uri VARCHAR(100),
    lastmodified INT(11) UNSIGNED
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

