From 6dc178711de036ae9a441e83978b7ed740be2f63 Mon Sep 17 00:00:00 2001
From: Aaron Patterson <aaron.patterson@gmail.com>
Date: Wed, 29 Oct 2014 18:11:51 -0700
Subject: [PATCH] add bigserial pk support

---
 .../connection_adapters/postgresql_adapter.rb |  1 +
 .../lib/active_record/schema_dumper.rb        |  2 ++
 .../cases/adapters/postgresql/uuid_test.rb    | 20 +++++++++++++++++++
 3 files changed, 23 insertions(+)

diff --git a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
index 3294238fa0805..bf2941b7779bf 100644
--- a/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
+++ b/activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb
@@ -78,6 +78,7 @@ class PostgreSQLAdapter < AbstractAdapter
 
       NATIVE_DATABASE_TYPES = {
         primary_key: "serial primary key",
+        bigserial: "bigserial",
         string:      { name: "character varying" },
         text:        { name: "text" },
         integer:     { name: "integer" },
diff --git a/activerecord/lib/active_record/schema_dumper.rb b/activerecord/lib/active_record/schema_dumper.rb
index 82c5ca291ca45..261fb9d992993 100644
--- a/activerecord/lib/active_record/schema_dumper.rb
+++ b/activerecord/lib/active_record/schema_dumper.rb
@@ -118,6 +118,8 @@ def table(table, stream)
           if pkcol
             if pk != 'id'
               tbl.print %Q(, primary_key: "#{pk}")
+            elsif pkcol.sql_type == 'bigint'
+              tbl.print ", id: :bigserial"
             elsif pkcol.sql_type == 'uuid'
               tbl.print ", id: :uuid"
               tbl.print %Q(, default: "#{pkcol.default_function}") if pkcol.default_function
diff --git a/activerecord/test/cases/adapters/postgresql/uuid_test.rb b/activerecord/test/cases/adapters/postgresql/uuid_test.rb
index ae5b409f99a27..376dc2490eb64 100644
--- a/activerecord/test/cases/adapters/postgresql/uuid_test.rb
+++ b/activerecord/test/cases/adapters/postgresql/uuid_test.rb
@@ -110,6 +110,26 @@ def test_uuid_formats
   end
 end
 
+class PostgresqlLargeKeysTest < ActiveRecord::TestCase
+  include PostgresqlUUIDHelper
+  def setup
+    connection.create_table('big_serials', id: :bigserial) do |t|
+      t.string 'name'
+    end
+  end
+
+  def test_omg
+    schema = StringIO.new
+    ActiveRecord::SchemaDumper.dump(connection, schema)
+    assert_match "create_table \"big_serials\", id: :bigserial, force: true",
+      schema.string
+  end
+
+  def teardown
+    drop_table "big_serials"
+  end
+end
+
 class PostgresqlUUIDGenerationTest < ActiveRecord::TestCase
   include PostgresqlUUIDHelper