Update SQL file in the template.

template.distillery/PROJECT_NAME.sql

@@ -47,4 +47,31 @@ CREATE SCHEMA ocsigen_start
 
   CREATE TABLE preregister (
          email citext NOT NULL
+  )
+  -- Table for OAuth2.0 server. An Eliom application can be an OAuth2.0 server.
+  -- Its client can be an Eliom application, but not always.
+
+  ---- Table to represent and register clients
+  CREATE TABLE oauth2_server_client (
+         id bigserial primary key,
+         application_name text not NULL,
+         description text not NULL,
+         redirect_uri text not NULL,
+         client_id text not NULL,
+         client_secret text not NULL
+  )
+
+  -- Table for OAuth2.0 client. An Eliom application can be a OAuth2.0 client of a
+  -- OAuth2.0 server which can be also an Eliom application, but not always.
+  CREATE TABLE oauth2_client_credentials (
+         -- Is it very useful ? Remove it implies an application can be a OAuth
+         -- client of a OAuth server only one time. For the moment, algorithms works
+         -- with the server_id which are the name and so id is useless.
+         id bigserial primary key,
+         server_id text not NULL, -- to remember which OAuth2.0 server is. The server name can be used.
+         server_authorization_url text not NULL,
+         server_token_url text not NULL,
+         server_data_url text not NULL,
+         client_id text not NULL,
+         client_secret text not NULL
   );