chore: update v1 schema (#643)

coderd/database/migrations/000002_projects.up.sql

@@ -1,10 +1,12 @@
 -- Store arbitrary data like project source code or avatars.
 CREATE TABLE files (
-    hash varchar(64) NOT NULL UNIQUE,
+    hash varchar(64) NOT NULL,
     created_at timestamptz NOT NULL,
-    created_by text NOT NULL,
+    -- foreign key?
+    created_by uuid NOT NULL,
     mimetype varchar(64) NOT NULL,
-    data bytea NOT NULL
+    data bytea NOT NULL,
+    PRIMARY KEY (hash)
 );
 
 CREATE TYPE provisioner_type AS ENUM ('echo', 'terraform');
@@ -12,17 +14,18 @@ CREATE TYPE provisioner_type AS ENUM ('echo', 'terraform');
 -- Project defines infrastructure that your software project
 -- requires for development.
 CREATE TABLE projects (
-    id uuid NOT NULL UNIQUE,
+    id uuid NOT NULL,
     created_at timestamptz NOT NULL,
     updated_at timestamptz NOT NULL,
     -- Projects must be scoped to an organization.
-    organization_id text NOT NULL,
+    organization_id uuid NOT NULL REFERENCES organizations (id) ON DELETE CASCADE,
     deleted boolean NOT NULL DEFAULT FALSE,
     name varchar(64) NOT NULL,
     provisioner provisioner_type NOT NULL,
     -- Target's a Project Version to use for Workspaces.
     -- If a Workspace doesn't match this version, it will be prompted to rebuild.
     active_version_id uuid NOT NULL,
+    PRIMARY KEY (id),
     -- Disallow projects to have the same name under
     -- the same organization.
     UNIQUE(organization_id, name)
@@ -35,10 +38,10 @@ CREATE UNIQUE INDEX ON projects (organization_id, name) WHERE deleted = FALSE;
 -- an "import" job is queued to parse parameters. A Project Version
 -- can only be used if the import job succeeds.
 CREATE TABLE project_versions (
-    id uuid NOT NULL UNIQUE,
-    -- This should be indexed.
-    project_id uuid REFERENCES projects (id),
-    organization_id text NOT NULL,
+    id uuid NOT NULL,
+    -- This should be indexed. It is intentionally nullable.
+    project_id uuid REFERENCES projects (id) ON DELETE CASCADE,
+    organization_id uuid NOT NULL REFERENCES organizations (id) ON DELETE CASCADE,
     created_at timestamptz NOT NULL,
     updated_at timestamptz NOT NULL,
     -- Name is generated for ease of differentiation.
@@ -49,6 +52,7 @@ CREATE TABLE project_versions (
     description varchar(1048576) NOT NULL,
     -- The job ID for building the project version.
     job_id uuid NOT NULL,
+    PRIMARY KEY (id),
     -- Disallow projects to have the same build name
     -- multiple times.
     UNIQUE(project_id, name)