CREATE TABLE addressbooks (
id integer primary key asc NOT NULL,
principaluri text NOT NULL,
displayname text,
uri text NOT NULL,
description text,
synctoken integer DEFAULT 1 NOT NULL
);
CREATE TABLE cards (
id integer primary key asc NOT NULL,
addressbookid integer NOT NULL,
carddata blob,
uri text NOT NULL,
lastmodified integer,
etag text,
size integer
);
CREATE TABLE addressbookchanges (
id integer primary key asc NOT NULL,
uri text,
synctoken integer NOT NULL,
addressbookid integer NOT NULL,
operation integer NOT NULL
);
CREATE INDEX addressbookid_synctoken ON addressbookchanges (addressbookid, synctoken);