players on join

ops/migrations/20181020104420_games.js

@@ -8,7 +8,7 @@ exports.up = async knex => {
         table.binary('data').notNullable();
     });
 
-    await knex.schema.createTable('instances', table => {
+    await knex.schema.createTable('instances', async table => {
         table.uuid('id').primary();
         table.index('id');
         table.timestamps();
@@ -17,16 +17,18 @@ exports.up = async knex => {
         table.boolean('open')
             .defaultTo(true)
             .notNullable();
-
-        await knex.schema.raw(
-            // eslint-disable-next-line max-len
-            'CREATE UNIQUE INDEX instances_joinable ON instances WHERE open = true;'
-        );
     });
 
+    await knex.schema.raw(
+        // eslint-disable-next-line max-len
+        'CREATE UNIQUE INDEX instances_open ON instances (open) WHERE open = true;'
+    );
+
+
     await knex.schema.createTable('players', table => {
         table.uuid('id').primary();
         table.index('id');
+        table.binary('data').notNullable();
 
         // the instance
         table.uuid('instance').notNullable()
@@ -52,7 +54,7 @@ exports.up = async knex => {
     await knex('instances').insert({
         id: NULL_UUID,
         data: 'INVALID',
-        joinable: false,
+        open: false,
     });
 };