colouring-montreal/migrations/001.create-core.up.sql

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2018-07-17 04:03:38 -04:00
--
-- Geometries table
--
-- To store building outlines.
-- Geometries form the backbone, expected to be provided from other sources.
CREATE TABLE geometries (
-- integer for internal unique id
-- may consider guid for global uniqueness
geometry_id serial PRIMARY KEY,
-- jsonb document for all data, source ID, attributes
geometry_doc jsonb,
-- geometry as EPSG:3857 avoiding reprojection for tiles
geometry_geom geometry(POLYGON, 3857)
);
-- Spatial index over building outlines
CREATE INDEX geometries_idx ON geometries USING GIST ( geometry_geom );
--
-- Buildings table
--
-- To store collected data.
-- This is the core dataset to be collected by the application.
CREATE TABLE buildings (
-- integer for internal unique id
-- may consider guid for global uniqueness
building_id serial PRIMARY KEY,
-- jsonb document for all data, attributes to be specified in application
building_doc jsonb,
-- reference to geometry, aiming to decouple from geometry provider
geometry_id integer REFERENCES geometries
);
-- Index over building geometry (expect to look up building by geometry_id)
CREATE INDEX building_geometry_idx ON buildings ( geometry_id );
--
-- Users table
--
-- Minimal user data to support login and edit history
CREATE TABLE users (
-- internal unique id
user_id serial PRIMARY KEY,
-- username for login (required)
username varchar UNIQUE NOT NULL,
-- email address for password reset (optional)
email varchar(50),
-- salt - to be generated by application
salt varchar (20),
-- password - as generated application from hash(salt+password)
pass varchar(60)
);
CREATE INDEX user_username_idx ON users ( username );
CREATE INDEX user_email_idx ON users ( email );
--
-- Log table
--
-- To store all changes to building data, recording users and change in data
-- over time.
CREATE TABLE log (
-- integer for internal unique id
log_id bigserial PRIMARY KEY,
-- default timestamp to time now
log_timestamp TIMESTAMP default NOW(),
-- log document to be extended in application
-- log change action (CREATE/UPDATE/DELETE)
log_doc jsonb,
-- log user id
user_id integer REFERENCES users
);
CREATE INDEX log_timestamp_idx ON log ( log_timestamp );
CREATE INDEX log_user_idx ON log ( user_id );