-- drop table if exists ns;
-- drop table if exists node;
-- drop table if exists statement;
create table ns (
prefix char(16),
uri char(255)
);
create table node (
id integer primary key,
-- id integer primary key auto_increment,
created timestamp,
value text,
is_resource integer(1)
);
create table statement (
id integer primary key,
-- id integer primary key auto_increment,
created timestamp,
subject integer,
predicate integer,
object integer,
context integer
);