openstreetmap Database schema

Database schema
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This is Developer documentation on how the various database tables are laid out in OpenStreetMap's core rails app, the rails port. This database stores all data relating directly to the openstreetmap web site and API, and most importantly the geodata tables hold the actual map data, that is the Data Primitives (nodes/ways/tags etc) and their editing history.

This is a work-in-progress document, which can be out of synch with latest developments. Schema changes are carried out occasionally in form of rails "migrations", and so the migrations definitions in subversion should be regarded as the "one true source" for schema definitions. In fact there is, at least in theory, little need to understand the underlying database schema, since code interactions within rails app take place via the rails models (ActiveRecord), and data interactions by third party tools take place via the API. However, if you're developing on your own test server, you may be curious to know how the underlying database is structured.

Contents [hide]
1 Tables
1.1 Geodata tables
1.1.1 Changesets
1.1.2 Nodes
1.1.3 Ways
1.1.4 Relations
1.2 Other geodata tables
1.3 GPX tables
1.4 Administrative tables
2 Types
3 Primary keys
4 Foreign keys
5 Sequences
6 Other indexes
7 See also


Tables
Geodata tables
There are two tables for each set of Data Primitives: the master table and the current table.

The current table (e.g. 'current_nodes', 'current_ways') is the latest revision, used for drawing the map. The master table includes all previous edit history. The current table is therefore a subset of the master table.

Changesets
CREATE TABLE changeset_tags (
    id bigint NOT NULL, -- references changesets(id)
    k character varying(255) DEFAULT ''::character varying NOT NULL,
    v character varying(255) DEFAULT ''::character varying NOT NULL
);

CREATE TABLE changesets (
    id bigint NOT NULL, -- autoincrement primary key
    user_id bigint NOT NULL, -- references users(id)
    created_at timestamp without time zone NOT NULL,
    min_lat integer,
    max_lat integer,
    min_lon integer,
    max_lon integer,
    closed_at timestamp without time zone NOT NULL,
    num_changes integer DEFAULT 0 NOT NULL
);Nodes
CREATE TABLE current_node_tags (
    id bigint NOT NULL, -- primary key part 1/2; references current_nodes(id)
    k character varying(255) DEFAULT ''::character varying NOT NULL, -- primary key part 2/2
    v character varying(255) DEFAULT ''::character varying NOT NULL
);

CREATE TABLE current_nodes (
    id bigint NOT NULL, -- autoincrement primary key
    latitude integer NOT NULL,
    longitude integer NOT NULL,
    changeset_id bigint NOT NULL, -- references changesets(id)
    visible BOOLEAN NOT NULL,
    "timestamp" timestamp without time zone NOT NULL,
    tile bigint NOT NULL,
    version bigint NOT NULL
);

CREATE TABLE node_tags (
    id bigint NOT NULL, -- primary key part 1/3; references nodes(id,version) part 1/2
    version bigint NOT NULL, -- primary key part 2/3; references nodes(id,version) part 2/2
    k character varying(255) DEFAULT ''::character varying NOT NULL, -- primary key part 3/3
    v character varying(255) DEFAULT ''::character varying NOT NULL
);

CREATE TABLE nodes (
    id bigint NOT NULL, -- primary key part 1/2
    latitude integer NOT NULL,
    longitude integer NOT NULL,
    changeset_id bigint NOT NULL, -- references changesets(id)
    visible BOOLEAN NOT NULL,
    "timestamp" timestamp without time zone NOT NULL,
    tile bigint NOT NULL,
    version bigint NOT NULL -- primary key part 2/2
);Ways
CREATE TABLE current_way_nodes (
    id bigint NOT NULL, -- primary key part 1/2; references current_ways(id)
    node_id bigint NOT NULL, REFERENCES current_nodes(id)
    sequence_id bigint NOT NULL -- primary key part 2/2
);

CREATE TABLE current_way_tags (
    id bigint NOT NULL, -- primary key part 1/2; references current_ways(id)
    k character varying(255) DEFAULT ''::character varying NOT NULL, -- primary key part 2/2
    v character varying(255) DEFAULT ''::character varying NOT NULL
);

CREATE TABLE current_ways (
    id bigint NOT NULL, -- autoincrement primary key
    changeset_id bigint NOT NULL, -- references changesets(id)
    "timestamp" timestamp without time zone NOT NULL,
    visible BOOLEAN NOT NULL,
    version bigint NOT NULL
);

CREATE TABLE way_nodes (
    id bigint NOT NULL, -- primary key part 1/3; references ways(id, version) part 1/2
    node_id bigint NOT NULL,
    version bigint NOT NULL, -- primary key part 2/3; references ways(id, version) part 2/2
    sequence_id bigint NOT NULL -- primary key part 3/3
);

CREATE TABLE way_tags (
    id bigint DEFAULT 0 NOT NULL, -- primary key part 1/3; references ways(id, version) part 1/2
    k character varying(255) NOT NULL, -- primary key part 3/3
    v character varying(255) NOT NULL,
    version bigint NOT NULL -- primary key part 2/3 -- references ways(id, version) part 2/2
);

CREATE TABLE ways (
    id bigint DEFAULT 0 NOT NULL, -- primary key part 1/2
    changeset_id bigint NOT NULL, -- references changesets(id)
    "timestamp" timestamp without time zone NOT NULL,
    version bigint NOT NULL, -- primary key part 2/2
    visible BOOLEAN DEFAULT true NOT NULL
);Relations
CREATE TABLE current_relation_members (
    id bigint NOT NULL, -- primary key part 1/5; references current_relations(id)
    member_type nwr_enum NOT NULL, -- primary key part 2/5
    member_id bigint NOT NULL, -- primary key part 3/5
    member_role character varying(255) NOT NULL, -- primary key part 4/5
    sequence_id integer DEFAULT 0 NOT NULL -- primary key part 5/5
);

CREATE TABLE current_relation_tags (
    id bigint NOT NULL, -- primary key part 1/2; references current_relations(id)
    k character varying(255) DEFAULT ''::character varying NOT NULL, --primary key part 2/2
    v character varying(255) DEFAULT ''::character varying NOT NULL
);

CREATE TABLE current_relations (
    id bigint NOT NULL, -- autoincrement primary key
    changeset_id bigint NOT NULL, -- references changesets(id)
    "timestamp" timestamp without time zone NOT NULL,
    visible BOOLEAN NOT NULL,
    version bigint NOT NULL
);

CREATE TABLE relation_members (
    id bigint DEFAULT 0 NOT NULL, -- primary key part 1/5; references relations(id, version) part 1/2
    member_type nwr_enum NOT NULL, -- primary key part 3/6
    member_id bigint NOT NULL, -- primary key part 4/6
    member_role character varying(255) NOT NULL, -- primary key part 5/6
    version bigint DEFAULT 0 NOT NULL, -- primary key part 2/6; references relations(id, version) part 2/2
    sequence_id integer DEFAULT 0 NOT NULL -- primary key part 6/6
);

CREATE TABLE relation_tags (
    id bigint DEFAULT 0 NOT NULL, -- primary key part 1/3; references relations(id, version) part 1/2
    k character varying(255) DEFAULT ''::character varying NOT NULL, -- primary key part 3/3
    v character varying(255) DEFAULT ''::character varying NOT NULL,
    version bigint NOT NULL -- primary key part 2/3; references relations(id, version) part 2/2
);

CREATE TABLE relations (
    id bigint DEFAULT 0 NOT NULL, -- primary key part 1/2
    changeset_id bigint NOT NULL, -- references changesets(id)
    "timestamp" timestamp without time zone NOT NULL,
    version bigint NOT NULL, -- primary key part 2/2
    visible BOOLEAN DEFAULT true NOT NULL
);Other geodata tables
CREATE TABLE countries (
    id integer NOT NULL, -- autoincrement primary key
    code character varying(2) NOT NULL,
    min_lat double precision NOT NULL,
    max_lat double precision NOT NULL,
    min_lon double precision NOT NULL,
    max_lon double precision NOT NULL
);GPX tables
CREATE TABLE gps_points (
    altitude double precision,
    trackid integer NOT NULL,
    latitude integer NOT NULL,
    longitude integer NOT NULL,
    gpx_id bigint NOT NULL, -- references gpx_files(id)
    "timestamp" timestamp without time zone,
    tile bigint
);

CREATE TABLE gpx_file_tags (
    gpx_id bigint DEFAULT 0 NOT NULL, -- references gpx_files(id)
    tag character varying(255) NOT NULL,
    id bigint NOT NULL -- autoincrement primary key
);

CREATE TABLE gpx_files (
    id bigint NOT NULL, -- autoincrement primary key
    user_id bigint NOT NULL, -- references users(id)
    visible BOOLEAN DEFAULT true NOT NULL,
    name character varying(255) DEFAULT ''::character varying NOT NULL,
    size bigint,
    latitude double precision,
    longitude double precision,
    "timestamp" timestamp without time zone NOT NULL,
    description character varying(255) DEFAULT ''::character varying NOT NULL,
    inserted BOOLEAN NOT NULL,
    visibility gpx_visibility_enum DEFAULT 'public'::gpx_visibility_enum NOT NULL
);Administrative tables
CREATE TABLE acls (
    id integer NOT NULL, -- autoincrement primary key
    address inet NOT NULL,
    netmask inet NOT NULL,
    k character varying(255) NOT NULL,
    v character varying(255)
);

CREATE TABLE client_applications (
    id integer NOT NULL, -- autoincrement primary key
    name character varying(255),
    url character varying(255),
    support_url character varying(255),
    callback_url character varying(255),
    KEY character varying(50),
    secret character varying(50),
    user_id integer, -- references users(id)
    created_at timestamp without time zone,
    updated_at timestamp without time zone,
    allow_read_prefs BOOLEAN DEFAULT false NOT NULL,
    allow_write_prefs BOOLEAN DEFAULT false NOT NULL,
    allow_write_diary BOOLEAN DEFAULT false NOT NULL,
    allow_write_api BOOLEAN DEFAULT false NOT NULL,
    allow_read_gpx BOOLEAN DEFAULT false NOT NULL,
    allow_write_gpx BOOLEAN DEFAULT false NOT NULL
);

CREATE TABLE diary_comments (
    id bigint NOT NULL, --autoincrement primary key
    diary_entry_id bigint NOT NULL, -- references diary_entries(id)
    user_id bigint NOT NULL,
    body text NOT NULL,
    created_at timestamp without time zone NOT NULL,
    updated_at timestamp without time zone NOT NULL
);

CREATE TABLE diary_entries (
    id bigint NOT NULL, --autoincrement primary key
    user_id bigint NOT NULL, -- references users(id)
    title character varying(255) NOT NULL,
    body text NOT NULL,
    created_at timestamp without time zone NOT NULL,
    updated_at timestamp without time zone NOT NULL,
    latitude double precision,
    longitude double precision,
    language_code character varying(255) DEFAULT 'en'::character varying NOT NULL -- references languages(code)
);

CREATE TABLE friends (
    id bigint NOT NULL, -- autoincrement primary key
    user_id bigint NOT NULL, -- references users(id)
    friend_user_id bigint NOT NULL -- references users(id)
);

CREATE TABLE languages (
    code character varying(255) NOT NULL, -- primary key
    english_name character varying(255) NOT NULL,
    native_name character varying(255)
);

CREATE TABLE messages (
    id bigint NOT NULL, -- autoincrement primary key
    from_user_id bigint NOT NULL, -- references users(id)
    title character varying(255) NOT NULL,
    body text NOT NULL,
    sent_on timestamp without time zone NOT NULL,
    message_read BOOLEAN DEFAULT false NOT NULL,
    to_user_id bigint NOT NULL, -- references users(id)
    to_user_visible BOOLEAN DEFAULT true NOT NULL,
    from_user_visible BOOLEAN DEFAULT true NOT NULL
);

CREATE TABLE oauth_nonces (
    id integer NOT NULL, -- autoincrement primary key
    nonce character varying(255),
    "timestamp" integer,
    created_at timestamp without time zone,
    updated_at timestamp without time zone
);

CREATE TABLE oauth_tokens (
    id integer NOT NULL, -- autoincrement primary key
    user_id integer, -- references users(id)
    type character varying(20),
    client_application_id integer, -- references client_applications(id)
    token character varying(50),
    secret character varying(50),
    authorized_at timestamp without time zone,
    invalidated_at timestamp without time zone,
    created_at timestamp without time zone,
    updated_at timestamp without time zone,
    allow_read_prefs BOOLEAN DEFAULT false NOT NULL,
    allow_write_prefs BOOLEAN DEFAULT false NOT NULL,
    allow_write_diary BOOLEAN DEFAULT false NOT NULL,
    allow_write_api BOOLEAN DEFAULT false NOT NULL,
    allow_read_gpx BOOLEAN DEFAULT false NOT NULL,
    allow_write_gpx BOOLEAN DEFAULT false NOT NULL
);

CREATE TABLE schema_migrations (
    version character varying(255) NOT NULL
);

CREATE TABLE sessions (
    id integer NOT NULL, -- autoincrement primary key
    session_id character varying(255),
    DATA text,
    created_at timestamp without time zone,
    updated_at timestamp without time zone
);

CREATE TABLE user_blocks (
    id integer NOT NULL, -- autoincrement primary key
    user_id bigint NOT NULL, -- references users(id)
    creator_id bigint NOT NULL, -- references users(id)
    reason text NOT NULL,
    ends_at timestamp without time zone NOT NULL,
    needs_view BOOLEAN DEFAULT false NOT NULL,
    revoker_id bigint, -- references users(id)
    created_at timestamp without time zone,
    updated_at timestamp without time zone
);

CREATE TABLE user_preferences (
    user_id bigint NOT NULL, -- primary key part 1/2; references users(id)
    k character varying(255) NOT NULL, -- primary key part 2/2
    v character varying(255) NOT NULL
);

CREATE TABLE user_roles (
    id integer NOT NULL, -- autoincrement primary key
    user_id bigint NOT NULL, -- references users(id)
    created_at timestamp without time zone,
    updated_at timestamp without time zone,
    role user_role_enum NOT NULL,
    granter_id bigint NOT NULL -- references users(id)
);

CREATE TABLE user_tokens (
    id bigint NOT NULL, -- autoincrement primary key
    user_id bigint NOT NULL, -- references users(id)
    token character varying(255) NOT NULL,
    expiry timestamp without time zone NOT NULL,
    referer text
);

CREATE TABLE users (
    email character varying(255) NOT NULL,
    id bigint NOT NULL, -- autoincrement primary key
    active integer DEFAULT 0 NOT NULL,
    pass_crypt character varying(255) NOT NULL,
    creation_time timestamp without time zone NOT NULL,
    display_name character varying(255) DEFAULT ''::character varying NOT NULL,
    data_public BOOLEAN DEFAULT false NOT NULL,
    description text DEFAULT ''::text NOT NULL,
    home_lat double precision,
    home_lon double precision,
    home_zoom smallint DEFAULT 3,
    nearby integer DEFAULT 50,
    pass_salt character varying(255),
    image text,
    email_valid BOOLEAN DEFAULT false NOT NULL,
    new_email character varying(255),
    visible BOOLEAN DEFAULT true NOT NULL,
    creation_ip character varying(255),
    languages character varying(255)
);Types
CREATE TYPE gpx_visibility_enum AS ENUM (
    'private',
    'public',
    'trackable',
    'identifiable'
);

CREATE TYPE nwr_enum AS ENUM (
    'node',
    'way',
    'relation'
);Primary keys
ALTER TABLE ONLY acls
    ADD CONSTRAINT acls_pkey PRIMARY KEY (id);
ALTER TABLE ONLY changesets
    ADD CONSTRAINT changesets_pkey PRIMARY KEY (id);
ALTER TABLE ONLY client_applications
    ADD CONSTRAINT client_applications_pkey PRIMARY KEY (id);
ALTER TABLE ONLY countries
    ADD CONSTRAINT countries_pkey PRIMARY KEY (id);
ALTER TABLE ONLY current_node_tags
    ADD CONSTRAINT current_node_tags_pkey PRIMARY KEY (id, k);
ALTER TABLE ONLY current_nodes
    ADD CONSTRAINT current_nodes_pkey1 PRIMARY KEY (id);
ALTER TABLE ONLY current_relation_members
    ADD CONSTRAINT current_relation_members_pkey PRIMARY KEY (id, member_type, member_id, member_role, sequence_id);
ALTER TABLE ONLY current_relation_tags
    ADD CONSTRAINT current_relation_tags_pkey PRIMARY KEY (id, k);
ALTER TABLE ONLY current_relations
    ADD CONSTRAINT current_relations_pkey PRIMARY KEY (id);
ALTER TABLE ONLY current_way_nodes
    ADD CONSTRAINT current_way_nodes_pkey PRIMARY KEY (id, sequence_id);
ALTER TABLE ONLY current_way_tags
    ADD CONSTRAINT current_way_tags_pkey PRIMARY KEY (id, k);
ALTER TABLE ONLY current_ways
    ADD CONSTRAINT current_ways_pkey PRIMARY KEY (id);
ALTER TABLE ONLY diary_comments
    ADD CONSTRAINT diary_comments_pkey PRIMARY KEY (id);
ALTER TABLE ONLY diary_entries
    ADD CONSTRAINT diary_entries_pkey PRIMARY KEY (id);
ALTER TABLE ONLY friends
    ADD CONSTRAINT friends_pkey PRIMARY KEY (id);
ALTER TABLE ONLY gpx_file_tags
    ADD CONSTRAINT gpx_file_tags_pkey PRIMARY KEY (id);
ALTER TABLE ONLY gpx_files
    ADD CONSTRAINT gpx_files_pkey PRIMARY KEY (id);
ALTER TABLE ONLY languages
    ADD CONSTRAINT languages_pkey PRIMARY KEY (code);
ALTER TABLE ONLY messages
    ADD CONSTRAINT messages_pkey PRIMARY KEY (id);
ALTER TABLE ONLY node_tags
    ADD CONSTRAINT node_tags_pkey PRIMARY KEY (id, version, k);
ALTER TABLE ONLY nodes
    ADD CONSTRAINT nodes_pkey PRIMARY KEY (id, version);
ALTER TABLE ONLY oauth_nonces
    ADD CONSTRAINT oauth_nonces_pkey PRIMARY KEY (id);
ALTER TABLE ONLY oauth_tokens
    ADD CONSTRAINT oauth_tokens_pkey PRIMARY KEY (id);
ALTER TABLE ONLY relation_members
    ADD CONSTRAINT relation_members_pkey PRIMARY KEY (id, version, member_type, member_id, member_role, sequence_id);
ALTER TABLE ONLY relation_tags
    ADD CONSTRAINT relation_tags_pkey PRIMARY KEY (id, version, k);
ALTER TABLE ONLY relations
    ADD CONSTRAINT relations_pkey PRIMARY KEY (id, version);
ALTER TABLE ONLY sessions
    ADD CONSTRAINT sessions_pkey PRIMARY KEY (id);
ALTER TABLE ONLY user_blocks
    ADD CONSTRAINT user_blocks_pkey PRIMARY KEY (id);
ALTER TABLE ONLY user_preferences
    ADD CONSTRAINT user_preferences_pkey PRIMARY KEY (user_id, k);
ALTER TABLE ONLY user_roles
    ADD CONSTRAINT user_roles_pkey PRIMARY KEY (id);
ALTER TABLE ONLY user_tokens
    ADD CONSTRAINT user_tokens_pkey PRIMARY KEY (id);
ALTER TABLE ONLY users
    ADD CONSTRAINT users_pkey PRIMARY KEY (id);
ALTER TABLE ONLY way_nodes
    ADD CONSTRAINT way_nodes_pkey PRIMARY KEY (id, version, sequence_id);
ALTER TABLE ONLY way_tags
    ADD CONSTRAINT way_tags_pkey PRIMARY KEY (id, version, k);
ALTER TABLE ONLY ways
    ADD CONSTRAINT ways_pkey PRIMARY KEY (id, version);Foreign keys
ALTER TABLE ONLY changeset_tags
    ADD CONSTRAINT changeset_tags_id_fkey FOREIGN KEY (id) REFERENCES changesets(id);
ALTER TABLE ONLY changesets
    ADD CONSTRAINT changesets_user_id_fkey FOREIGN KEY (user_id) REFERENCES users(id);
ALTER TABLE ONLY client_applications
    ADD CONSTRAINT client_applications_user_id_fkey FOREIGN KEY (user_id) REFERENCES users(id);
ALTER TABLE ONLY current_node_tags
    ADD CONSTRAINT current_node_tags_id_fkey FOREIGN KEY (id) REFERENCES current_nodes(id);
ALTER TABLE ONLY current_nodes
    ADD CONSTRAINT current_nodes_changeset_id_fkey FOREIGN KEY (changeset_id) REFERENCES changesets(id);
ALTER TABLE ONLY current_relation_members
    ADD CONSTRAINT current_relation_members_id_fkey FOREIGN KEY (id) REFERENCES current_relations(id);
ALTER TABLE ONLY current_relation_tags
    ADD CONSTRAINT current_relation_tags_id_fkey FOREIGN KEY (id) REFERENCES current_relations(id);
ALTER TABLE ONLY current_relations
    ADD CONSTRAINT current_relations_changeset_id_fkey FOREIGN KEY (changeset_id) REFERENCES changesets(id);
ALTER TABLE ONLY current_way_nodes
    ADD CONSTRAINT current_way_nodes_id_fkey FOREIGN KEY (id) REFERENCES current_ways(id);
ALTER TABLE ONLY current_way_nodes
    ADD CONSTRAINT current_way_nodes_node_id_fkey FOREIGN KEY (node_id) REFERENCES current_nodes(id);
ALTER TABLE ONLY current_way_tags
    ADD CONSTRAINT current_way_tags_id_fkey FOREIGN KEY (id) REFERENCES current_ways(id);
ALTER TABLE ONLY current_ways
    ADD CONSTRAINT current_ways_changeset_id_fkey FOREIGN KEY (changeset_id) REFERENCES changesets(id);
ALTER TABLE ONLY diary_comments
    ADD CONSTRAINT diary_comments_diary_entry_id_fkey FOREIGN KEY (diary_entry_id) REFERENCES diary_entries(id);
ALTER TABLE ONLY diary_comments
    ADD CONSTRAINT diary_comments_user_id_fkey FOREIGN KEY (user_id) REFERENCES users(id);
ALTER TABLE ONLY diary_entries
    ADD CONSTRAINT diary_entries_language_code_fkey FOREIGN KEY (language_code) REFERENCES languages(code);
ALTER TABLE ONLY diary_entries
    ADD CONSTRAINT diary_entries_user_id_fkey FOREIGN KEY (user_id) REFERENCES users(id);
ALTER TABLE ONLY friends
    ADD CONSTRAINT friends_friend_user_id_fkey FOREIGN KEY (friend_user_id) REFERENCES users(id);
ALTER TABLE ONLY friends
    ADD CONSTRAINT friends_user_id_fkey FOREIGN KEY (user_id) REFERENCES users(id);
ALTER TABLE ONLY gps_points
    ADD CONSTRAINT gps_points_gpx_id_fkey FOREIGN KEY (gpx_id) REFERENCES gpx_files(id);
ALTER TABLE ONLY gpx_file_tags
    ADD CONSTRAINT gpx_file_tags_gpx_id_fkey FOREIGN KEY (gpx_id) REFERENCES gpx_files(id);
ALTER TABLE ONLY gpx_files
    ADD CONSTRAINT gpx_files_user_id_fkey FOREIGN KEY (user_id) REFERENCES users(id);
ALTER TABLE ONLY messages
    ADD CONSTRAINT messages_from_user_id_fkey FOREIGN KEY (from_user_id) REFERENCES users(id);
ALTER TABLE ONLY messages
    ADD CONSTRAINT messages_to_user_id_fkey FOREIGN KEY (to_user_id) REFERENCES users(id);
ALTER TABLE ONLY node_tags
    ADD CONSTRAINT node_tags_id_fkey FOREIGN KEY (id, version) REFERENCES nodes(id, version);
ALTER TABLE ONLY nodes
    ADD CONSTRAINT nodes_changeset_id_fkey FOREIGN KEY (changeset_id) REFERENCES changesets(id);
ALTER TABLE ONLY oauth_tokens
    ADD CONSTRAINT oauth_tokens_client_application_id_fkey FOREIGN KEY (client_application_id) REFERENCES client_applications(id);
ALTER TABLE ONLY oauth_tokens
    ADD CONSTRAINT oauth_tokens_user_id_fkey FOREIGN KEY (user_id) REFERENCES users(id);
ALTER TABLE ONLY relation_members
    ADD CONSTRAINT relation_members_id_fkey FOREIGN KEY (id, version) REFERENCES relations(id, version);
ALTER TABLE ONLY relation_tags
    ADD CONSTRAINT relation_tags_id_fkey FOREIGN KEY (id, version) REFERENCES relations(id, version);
ALTER TABLE ONLY relations
    ADD CONSTRAINT relations_changeset_id_fkey FOREIGN KEY (changeset_id) REFERENCES changesets(id);
ALTER TABLE ONLY user_blocks
    ADD CONSTRAINT user_blocks_moderator_id_fkey FOREIGN KEY (creator_id) REFERENCES users(id);
ALTER TABLE ONLY user_blocks
    ADD CONSTRAINT user_blocks_revoker_id_fkey FOREIGN KEY (revoker_id) REFERENCES users(id);
ALTER TABLE ONLY user_blocks
    ADD CONSTRAINT user_blocks_user_id_fkey FOREIGN KEY (user_id) REFERENCES users(id);
ALTER TABLE ONLY user_preferences
    ADD CONSTRAINT user_preferences_user_id_fkey FOREIGN KEY (user_id) REFERENCES users(id);
ALTER TABLE ONLY user_roles
    ADD CONSTRAINT user_roles_granter_id_fkey FOREIGN KEY (granter_id) REFERENCES users(id);
ALTER TABLE ONLY user_roles
    ADD CONSTRAINT user_roles_user_id_fkey FOREIGN KEY (user_id) REFERENCES users(id);
ALTER TABLE ONLY user_tokens
    ADD CONSTRAINT user_tokens_user_id_fkey FOREIGN KEY (user_id) REFERENCES users(id);
ALTER TABLE ONLY way_nodes
    ADD CONSTRAINT way_nodes_id_fkey FOREIGN KEY (id, version) REFERENCES ways(id, version);
ALTER TABLE ONLY way_tags
    ADD CONSTRAINT way_tags_id_fkey FOREIGN KEY (id, version) REFERENCES ways(id, version);
ALTER TABLE ONLY ways
    ADD CONSTRAINT ways_changeset_id_fkey FOREIGN KEY (changeset_id) REFERENCES changesets(id);Sequences
CREATE SEQUENCE acls_id_seq
    START WITH 1
    INCREMENT BY 1
    NO MAXVALUE
    NO MINVALUE
    CACHE 1;

CREATE SEQUENCE changesets_id_seq
    START WITH 1
    INCREMENT BY 1
    NO MAXVALUE
    NO MINVALUE
    CACHE 1;

CREATE SEQUENCE client_applications_id_seq
    START WITH 1
    INCREMENT BY 1
    NO MAXVALUE
    NO MINVALUE
    CACHE 1;

CREATE SEQUENCE countries_id_seq
    START WITH 1
    INCREMENT BY 1
    NO MAXVALUE
    NO MINVALUE
    CACHE 1;

CREATE SEQUENCE current_nodes_id_seq
    START WITH 1
    INCREMENT BY 1
    NO MAXVALUE
    NO MINVALUE
    CACHE 1;

CREATE SEQUENCE current_relations_id_seq
    START WITH 1
    INCREMENT BY 1
    NO MAXVALUE
    NO MINVALUE
    CACHE 1;

CREATE SEQUENCE current_ways_id_seq
    START WITH 1
    INCREMENT BY 1
    NO MAXVALUE
    NO MINVALUE
    CACHE 1;

CREATE SEQUENCE diary_comments_id_seq
    START WITH 1
    INCREMENT BY 1
    NO MAXVALUE
    NO MINVALUE
    CACHE 1;

CREATE SEQUENCE diary_entries_id_seq
    START WITH 1
    INCREMENT BY 1
    NO MAXVALUE
    NO MINVALUE
    CACHE 1;

CREATE SEQUENCE friends_id_seq
    START WITH 1
    INCREMENT BY 1
    NO MAXVALUE
    NO MINVALUE
    CACHE 1;

CREATE SEQUENCE gpx_file_tags_id_seq
    START WITH 1
    INCREMENT BY 1
    NO MAXVALUE
    NO MINVALUE
    CACHE 1;

CREATE SEQUENCE gpx_files_id_seq
    START WITH 1
    INCREMENT BY 1
    NO MAXVALUE
    NO MINVALUE
    CACHE 1;

CREATE SEQUENCE messages_id_seq
    START WITH 1
    INCREMENT BY 1
    NO MAXVALUE
    NO MINVALUE
    CACHE 1;

CREATE SEQUENCE oauth_nonces_id_seq
    START WITH 1
    INCREMENT BY 1
    NO MAXVALUE
    NO MINVALUE
    CACHE 1;

CREATE SEQUENCE oauth_tokens_id_seq
    START WITH 1
    INCREMENT BY 1
    NO MAXVALUE
    NO MINVALUE
    CACHE 1;

CREATE SEQUENCE sessions_id_seq
    START WITH 1
    INCREMENT BY 1
    NO MAXVALUE
    NO MINVALUE
    CACHE 1;

CREATE SEQUENCE user_blocks_id_seq
    START WITH 1
    INCREMENT BY 1
    NO MAXVALUE
    NO MINVALUE
    CACHE 1;

CREATE SEQUENCE user_roles_id_seq
    START WITH 1
    INCREMENT BY 1
    NO MAXVALUE
    NO MINVALUE
    CACHE 1;

CREATE SEQUENCE user_tokens_id_seq
    START WITH 1
    INCREMENT BY 1
    NO MAXVALUE
    NO MINVALUE
    CACHE 1;

CREATE SEQUENCE users_id_seq
    START WITH 1
    INCREMENT BY 1
    NO MAXVALUE
    NO MINVALUE
    CACHE 1;

ALTER TABLE acls ALTER COLUMN id SET DEFAULT NEXTVAL('acls_id_seq'::regclass);
ALTER TABLE changesets ALTER COLUMN id SET DEFAULT NEXTVAL('changesets_id_seq'::regclass);
ALTER TABLE client_applications ALTER COLUMN id SET DEFAULT NEXTVAL('client_applications_id_seq'::regclass);
ALTER TABLE countries ALTER COLUMN id SET DEFAULT NEXTVAL('countries_id_seq'::regclass);
ALTER TABLE current_nodes ALTER COLUMN id SET DEFAULT NEXTVAL('current_nodes_id_seq'::regclass);
ALTER TABLE current_relations ALTER COLUMN id SET DEFAULT NEXTVAL('current_relations_id_seq'::regclass);
ALTER TABLE current_ways ALTER COLUMN id SET DEFAULT NEXTVAL('current_ways_id_seq'::regclass);
ALTER TABLE diary_comments ALTER COLUMN id SET DEFAULT NEXTVAL('diary_comments_id_seq'::regclass);
ALTER TABLE diary_entries ALTER COLUMN id SET DEFAULT NEXTVAL('diary_entries_id_seq'::regclass);
ALTER TABLE friends ALTER COLUMN id SET DEFAULT NEXTVAL('friends_id_seq'::regclass);
ALTER TABLE gpx_file_tags ALTER COLUMN id SET DEFAULT NEXTVAL('gpx_file_tags_id_seq'::regclass);
ALTER TABLE gpx_files ALTER COLUMN id SET DEFAULT NEXTVAL('gpx_files_id_seq'::regclass);
ALTER TABLE messages ALTER COLUMN id SET DEFAULT NEXTVAL('messages_id_seq'::regclass);
ALTER TABLE oauth_nonces ALTER COLUMN id SET DEFAULT NEXTVAL('oauth_nonces_id_seq'::regclass);
ALTER TABLE oauth_tokens ALTER COLUMN id SET DEFAULT NEXTVAL('oauth_tokens_id_seq'::regclass);
ALTER TABLE sessions ALTER COLUMN id SET DEFAULT NEXTVAL('sessions_id_seq'::regclass);
ALTER TABLE user_blocks ALTER COLUMN id SET DEFAULT NEXTVAL('user_blocks_id_seq'::regclass);
ALTER TABLE user_roles ALTER COLUMN id SET DEFAULT NEXTVAL('user_roles_id_seq'::regclass);
ALTER TABLE user_tokens ALTER COLUMN id SET DEFAULT NEXTVAL('user_tokens_id_seq'::regclass);
ALTER TABLE users ALTER COLUMN id SET DEFAULT NEXTVAL('users_id_seq'::regclass);Other indexes
CREATE INDEX acls_k_idx ON acls USING btree (k);
CREATE INDEX changeset_tags_id_idx ON changeset_tags USING btree (id);
CREATE INDEX changesets_bbox_idx ON changesets USING gist (min_lat, max_lat, min_lon, max_lon);
CREATE INDEX changesets_closed_at_idx ON changesets USING btree (closed_at);
CREATE INDEX changesets_created_at_idx ON changesets USING btree (created_at);
CREATE INDEX changesets_user_id_idx ON changesets USING btree (user_id);
CREATE UNIQUE INDEX countries_code_idx ON countries USING btree (code);
CREATE INDEX current_nodes_tile_idx ON current_nodes USING btree (tile);
CREATE INDEX current_nodes_timestamp_idx ON current_nodes USING btree ("timestamp");
CREATE INDEX current_relation_members_member_idx ON current_relation_members USING btree (member_type, member_id);
CREATE INDEX current_relations_timestamp_idx ON current_relations USING btree ("timestamp");
CREATE INDEX current_way_nodes_node_idx ON current_way_nodes USING btree (node_id);
CREATE INDEX current_ways_timestamp_idx ON current_ways USING btree ("timestamp");
CREATE UNIQUE INDEX diary_comments_entry_id_idx ON diary_comments USING btree (diary_entry_id, id);
CREATE INDEX friends_user_id_idx ON friends USING btree (user_id);
CREATE INDEX gpx_file_tags_gpxid_idx ON gpx_file_tags USING btree (gpx_id);
CREATE INDEX gpx_file_tags_tag_idx ON gpx_file_tags USING btree (tag);
CREATE INDEX gpx_files_timestamp_idx ON gpx_files USING btree ("timestamp");
CREATE INDEX gpx_files_user_id_idx ON gpx_files USING btree (user_id);
CREATE INDEX gpx_files_visible_visibility_idx ON gpx_files USING btree (visible, visibility);
CREATE UNIQUE INDEX index_client_applications_on_key ON client_applications USING btree (KEY);
CREATE UNIQUE INDEX index_oauth_nonces_on_nonce_and_timestamp ON oauth_nonces USING btree (nonce, "timestamp");
CREATE UNIQUE INDEX index_oauth_tokens_on_token ON oauth_tokens USING btree (token);
CREATE INDEX index_user_blocks_on_user_id ON user_blocks USING btree (user_id);
CREATE INDEX messages_from_user_id_idx ON messages USING btree (from_user_id);
CREATE INDEX messages_to_user_id_idx ON messages USING btree (to_user_id);
CREATE INDEX nodes_changeset_id_idx ON nodes USING btree (changeset_id);
CREATE INDEX nodes_tile_idx ON nodes USING btree (tile);
CREATE INDEX nodes_timestamp_idx ON nodes USING btree ("timestamp");
CREATE INDEX points_gpxid_idx ON gps_points USING btree (gpx_id);
CREATE INDEX points_tile_idx ON gps_points USING btree (tile);
CREATE INDEX relation_members_member_idx ON relation_members USING btree (member_type, member_id);
CREATE INDEX relations_changeset_id_idx ON relations USING btree (changeset_id);
CREATE INDEX relations_timestamp_idx ON relations USING btree ("timestamp");
CREATE UNIQUE INDEX sessions_session_id_idx ON sessions USING btree (session_id);
CREATE UNIQUE INDEX unique_schema_migrations ON schema_migrations USING btree (version);
CREATE INDEX user_id_idx ON friends USING btree (friend_user_id);
CREATE UNIQUE INDEX user_roles_id_role_unique ON user_roles USING btree (user_id, role);
CREATE UNIQUE INDEX user_tokens_token_idx ON user_tokens USING btree (token);
CREATE INDEX user_tokens_user_id_idx ON user_tokens USING btree (user_id);
CREATE UNIQUE INDEX users_display_name_idx ON users USING btree (display_name);
CREATE UNIQUE INDEX users_email_idx ON users USING btree (email);
CREATE INDEX way_nodes_node_idx ON way_nodes USING btree (node_id);
CREATE INDEX ways_changeset_id_idx ON ways USING btree (changeset_id);
CREATE INDEX ways_timestamp_idx ON ways USING btree ("timestamp");