From ac7bb003ec9726d23d0a537f347c2dd4c8f7204a Mon Sep 17 00:00:00 2001
From: Tom Hughes <tom@compton.nu>
Date: Sat, 10 Jan 2015 11:45:39 +0000
Subject: [PATCH] Cleanup migrations

Cleanup our migrations, replacing as much of our custom code
and monkey patching with modern standard rails methods.
---
 db/migrate/001_create_osm_db.rb               | 192 +++++++++---------
 db/migrate/002_cleanup_osm_db.rb              | 123 ++++++-----
 db/migrate/003_sql_session_store_setup.rb     |   2 +-
 db/migrate/004_user_enhancements.rb           |  26 +--
 db/migrate/005_tile_tracepoints.rb            |   2 +-
 db/migrate/006_tile_nodes.rb                  |  72 +++----
 db/migrate/007_add_relations.rb               |  49 +++--
 db/migrate/008_remove_segments.rb             |  18 +-
 db/migrate/010_diary_comments.rb              |  14 +-
 db/migrate/018_create_acls.rb                 |  10 +-
 .../020_populate_node_tags_and_remove.rb      |  12 +-
 db/migrate/021_move_to_innodb.rb              |   8 +-
 db/migrate/022_key_constraints.rb             |  22 +-
 db/migrate/023_add_changesets.rb              |  24 +--
 db/migrate/025_add_end_time_to_changesets.rb  |   4 +-
 db/migrate/028_add_more_changeset_indexes.rb  |   2 +-
 db/migrate/029_add_user_foreign_keys.rb       |  26 +--
 db/migrate/030_add_foreign_keys.rb            |   8 +-
 db/migrate/031_create_countries.rb            |  14 +-
 db/migrate/034_create_languages.rb            |  12 +-
 db/migrate/035_change_user_locale.rb          |   4 +-
 .../042_add_foreign_keys_to_oauth_tables.rb   |  14 +-
 db/migrate/044_create_user_roles.rb           |   7 +-
 db/migrate/045_create_user_blocks.rb          |  12 +-
 db/migrate/046_alter_user_roles_and_blocks.rb |   8 +-
 db/migrate/054_refactor_map_bug_tables.rb     |   8 +-
 .../20110521142405_rename_bugs_to_notes.rb    |  20 --
 ...111212183945_add_lowercase_user_indexes.rb |   4 +-
 .../20120318201948_create_redactions.rb       |  13 +-
 .../20120328090602_drop_session_table.rb      |   2 +-
 ...4_add_user_and_description_to_redaction.rb |  11 +-
 ...5192822_add_text_index_to_note_comments.rb |   2 +-
 ...0140507110937_create_changeset_comments.rb |   4 +-
 ...join_table_between_users_and_changesets.rb |   4 +-
 db/structure.sql                              | 110 +++++-----
 lib/migrate.rb                                | 146 +++----------
 36 files changed, 423 insertions(+), 586 deletions(-)

diff --git a/db/migrate/001_create_osm_db.rb b/db/migrate/001_create_osm_db.rb
index d952c0a07..34b020340 100644
--- a/db/migrate/001_create_osm_db.rb
+++ b/db/migrate/001_create_osm_db.rb
@@ -2,13 +2,13 @@ require 'migrate'
 
 class CreateOsmDb < ActiveRecord::Migration
   def self.up
-    create_table "current_nodes", innodb_table do |t|
-      t.column "id",        :bigint,   :limit => 64,                 :null => false
-      t.column "latitude",  :double
-      t.column "longitude", :double
-      t.column "user_id",   :bigint,   :limit => 20
+    create_table "current_nodes", :id => false do |t|
+      t.column "id",        :bigint, :null => false
+      t.column "latitude",  :float, :limit => 53
+      t.column "longitude", :float, :limit => 53
+      t.column "user_id",   :bigint
       t.column "visible",   :boolean
-      t.column "tags",      :text,                   :default => "", :null => false
+      t.column "tags",      :text, :default => "", :null => false
       t.column "timestamp", :datetime
     end
 
@@ -16,15 +16,13 @@ class CreateOsmDb < ActiveRecord::Migration
     add_index "current_nodes", ["latitude", "longitude"], :name => "current_nodes_lat_lon_idx"
     add_index "current_nodes", ["timestamp"], :name => "current_nodes_timestamp_idx"
 
-    change_column :current_nodes, :id, :bigint_auto_64
-
-    create_table "current_segments", innodb_table do |t|
-      t.column "id",        :bigint,   :limit => 64,                 :null => false
-      t.column "node_a",    :bigint,   :limit => 64
-      t.column "node_b",    :bigint,   :limit => 64
-      t.column "user_id",   :bigint,   :limit => 20
+    create_table "current_segments", :id => false do |t|
+      t.column "id",        :bigint, :null => false
+      t.column "node_a",    :bigint
+      t.column "node_b",    :bigint
+      t.column "user_id",   :bigint
       t.column "visible",   :boolean
-      t.column "tags",      :text,                   :default => "", :null => false
+      t.column "tags",      :text, :default => "", :null => false
       t.column "timestamp", :datetime
     end
 
@@ -32,51 +30,49 @@ class CreateOsmDb < ActiveRecord::Migration
     add_index "current_segments", ["node_a"], :name => "current_segments_a_idx"
     add_index "current_segments", ["node_b"], :name => "current_segments_b_idx"
 
-    change_column :current_segments, :id, :bigint_auto_64
-
-    create_table "current_way_segments", innodb_table do |t|
-      t.column "id",          :bigint, :limit => 64
-      t.column "segment_id",  :bigint, :limit => 11
-      t.column "sequence_id", :bigint, :limit => 11
+    create_table "current_way_segments", :id => false do |t|
+      t.column "id",          :bigint
+      t.column "segment_id",  :bigint
+      t.column "sequence_id", :bigint
     end
 
     add_index "current_way_segments", ["segment_id"], :name => "current_way_segments_seg_idx"
     add_index "current_way_segments", ["id"], :name => "current_way_segments_id_idx"
 
-    create_table "current_way_tags", myisam_table do |t|
-      t.column "id", :bigint, :limit => 64
-      t.column "k",  :string,                :default => "", :null => false
-      t.column "v",  :string,                :default => "", :null => false
+    create_table "current_way_tags", :id => false do |t|
+      t.column "id", :bigint
+      t.column "k",  :string, :default => "", :null => false
+      t.column "v",  :string, :default => "", :null => false
     end
 
     add_index "current_way_tags", ["id"], :name => "current_way_tags_id_idx"
-    add_fulltext_index "current_way_tags", "v"
+    add_index "current_way_tags", "v", :name => "current_way_tags_v_idx"
 
-    create_table "current_ways", myisam_table do |t|
-      t.column "id",        :bigint_pk_64, :null => false
-      t.column "user_id",   :bigint,   :limit => 20
+    create_table "current_ways", :id => false do |t|
+      t.column "id",        :bigserial, :primary_key => true, :null => false
+      t.column "user_id",   :bigint
       t.column "timestamp", :datetime
       t.column "visible",   :boolean
     end
 
-    create_table "diary_entries", myisam_table do |t|
-      t.column "id",         :bigint_pk, :null => false
-      t.column "user_id",    :bigint,   :limit => 20, :null => false
+    create_table "diary_entries", :id => false do |t|
+      t.column "id",         :bigserial, :primary_key => true, :null => false
+      t.column "user_id",    :bigint, :null => false
       t.column "title",      :string
       t.column "body",       :text
       t.column "created_at", :datetime
       t.column "updated_at", :datetime
     end
 
-    create_table "friends", myisam_table do |t|
-      t.column "id",             :bigint_pk, :null => false
-      t.column "user_id",        :bigint,  :limit => 20, :null => false
-      t.column "friend_user_id", :bigint,  :limit => 20, :null => false
+    create_table "friends", :id => false do |t|
+      t.column "id",             :bigserial, :primary_key => true, :null => false
+      t.column "user_id",        :bigint, :null => false
+      t.column "friend_user_id", :bigint, :null => false
     end
 
     add_index "friends", ["friend_user_id"], :name => "user_id_idx"
 
-    create_table "gps_points", myisam_table do |t|
+    create_table "gps_points", :id => false do |t|
       t.column "altitude",  :float
       t.column "user_id",   :integer
       t.column "trackid",   :integer
@@ -90,77 +86,77 @@ class CreateOsmDb < ActiveRecord::Migration
     add_index "gps_points", ["user_id"], :name => "points_uid_idx"
     add_index "gps_points", ["gpx_id"], :name => "points_gpxid_idx"
 
-    create_table "gpx_file_tags", myisam_table do |t|
-      t.column "gpx_id", :bigint,  :limit => 64, :default => 0, :null => false
+    create_table "gpx_file_tags", :id => false do |t|
+      t.column "gpx_id", :bigint, :default => 0, :null => false
       t.column "tag",    :string
-      t.column "id",     :bigint_pk, :null => false
+      t.column "id",     :bigserial, :primary_key => true, :null => false
     end
 
     add_index "gpx_file_tags", ["gpx_id"], :name => "gpx_file_tags_gpxid_idx"
 
-    create_table "gpx_files", myisam_table do |t|
-      t.column "id",          :bigint_pk_64,                   :null => false
-      t.column "user_id",     :bigint,   :limit => 20
-      t.column "visible",     :boolean,                :default => true, :null => false
-      t.column "name",        :string,                 :default => "",   :null => false
-      t.column "size",        :bigint,   :limit => 20
-      t.column "latitude",    :double
-      t.column "longitude",   :double
+    create_table "gpx_files", :id => false do |t|
+      t.column "id",          :bigserial, :primary_key => true, :null => false
+      t.column "user_id",     :bigint
+      t.column "visible",     :boolean, :default => true, :null => false
+      t.column "name",        :string, :default => "", :null => false
+      t.column "size",        :bigint
+      t.column "latitude",    :float, :limit => 53
+      t.column "longitude",   :float, :limit => 53
       t.column "timestamp",   :datetime
-      t.column "public",      :boolean,                :default => true, :null => false
-      t.column "description", :string,                 :default => ""
+      t.column "public",      :boolean, :default => true, :null => false
+      t.column "description", :string, :default => ""
       t.column "inserted",    :boolean
     end
 
     add_index "gpx_files", ["timestamp"], :name => "gpx_files_timestamp_idx"
     add_index "gpx_files", ["visible", "public"], :name => "gpx_files_visible_public_idx"
 
-    create_table "gpx_pending_files", myisam_table do |t|
+    create_table "gpx_pending_files", :id => false do |t|
       t.column "originalname", :string
       t.column "tmpname",      :string
-      t.column "user_id",      :bigint,  :limit => 20
+      t.column "user_id",      :bigint
     end
 
-    create_table "messages", myisam_table do |t|
-      t.column "id",                :bigint_pk,                                 :null => false
-      t.column "user_id",           :bigint,   :limit => 20,                    :null => false
-      t.column "from_user_id",      :bigint,   :limit => 20,                    :null => false
-      t.column "from_display_name", :string,                 :default => ""
+    create_table "messages", :id => false do |t|
+      t.column "id",                :bigserial, :primary_key => true, :null => false
+      t.column "user_id",           :bigint, :null => false
+      t.column "from_user_id",      :bigint, :null => false
+      t.column "from_display_name", :string, :default => ""
       t.column "title",             :string
       t.column "body",              :text
       t.column "sent_on",           :datetime
-      t.column "message_read",      :boolean,                :default => false
-      t.column "to_user_id",        :bigint,   :limit => 20,                    :null => false
+      t.column "message_read",      :boolean, :default => false
+      t.column "to_user_id",        :bigint, :null => false
     end
 
     add_index "messages", ["from_display_name"], :name => "from_name_idx"
 
-    create_table "meta_areas", myisam_table do |t|
-      t.column "id",        :bigint_pk_64, :null => false
-      t.column "user_id",   :bigint,  :limit => 20
+    create_table "meta_areas", :id => false do |t|
+      t.column "id",        :bigserial, :primary_key => true, :null => false
+      t.column "user_id",   :bigint
       t.column "timestamp", :datetime
     end
 
-    create_table "nodes", myisam_table do |t|
-      t.column "id",        :bigint,  :limit => 64
-      t.column "latitude",  :double
-      t.column "longitude", :double
-      t.column "user_id",   :bigint,  :limit => 20
+    create_table "nodes", :id => false do |t|
+      t.column "id",        :bigint
+      t.column "latitude",  :float, :limit => 53
+      t.column "longitude", :float, :limit => 53
+      t.column "user_id",   :bigint
       t.column "visible",   :boolean
-      t.column "tags",      :text,                  :default => "", :null => false
+      t.column "tags",      :text, :default => "", :null => false
       t.column "timestamp", :datetime
     end
 
     add_index "nodes", ["id"], :name => "nodes_uid_idx"
     add_index "nodes", ["latitude", "longitude"], :name => "nodes_latlon_idx"
 
-    create_table "segments", myisam_table do |t|
-      t.column "id",        :bigint,  :limit => 64
-      t.column "node_a",    :bigint,  :limit => 64
-      t.column "node_b",    :bigint,  :limit => 64
-      t.column "user_id",   :bigint,  :limit => 20
+    create_table "segments", :id => false do |t|
+      t.column "id",        :bigint
+      t.column "node_a",    :bigint
+      t.column "node_b",    :bigint
+      t.column "user_id",   :bigint
       t.column "visible",   :boolean
-      t.column "tags",      :text,                  :default => "", :null => false
+      t.column "tags",      :text, :default => "", :null => false
       t.column "timestamp", :datetime
     end
 
@@ -168,60 +164,56 @@ class CreateOsmDb < ActiveRecord::Migration
     add_index "segments", ["node_b"], :name => "street_segments_nodeb_idx"
     add_index "segments", ["id"], :name => "street_segment_uid_idx"
 
-    create_table "users", innodb_table do |t|
+    create_table "users", :id => false do |t|
       t.column "email",         :string
-      t.column "id",            :bigint_pk,                    :null => false
+      t.column "id",            :bigserial, :primary_key => true, :null => false
       t.column "token",         :string
-      t.column "active",        :integer,                :default => 0,     :null => false
+      t.column "active",        :integer, :default => 0, :null => false
       t.column "pass_crypt",    :string
       t.column "creation_time", :datetime
       t.column "timeout",       :datetime
-      t.column "display_name",  :string,                 :default => ""
+      t.column "display_name",  :string, :default => ""
       t.column "preferences",   :text
-      t.column "data_public",   :boolean,                :default => false
-      t.column "description",   :text,                   :default => "",    :null => false
-      t.column "home_lat",      :double,                 :default => 1
-      t.column "home_lon",      :double,                 :default => 1
-      t.column "within_lon",    :double
-      t.column "within_lat",    :double
-      t.column "home_zoom",     :integer,  :limit => 2,  :default => 3
+      t.column "data_public",   :boolean, :default => false
+      t.column "description",   :text, :default => "", :null => false
+      t.column "home_lat",      :float, :limit => 53, :default => 1
+      t.column "home_lon",      :float, :limit => 53, :default => 1
+      t.column "within_lon",    :float, :limit => 53
+      t.column "within_lat",    :float, :limit => 53
+      t.column "home_zoom",     :integer, :limit => 2, :default => 3
     end
 
     add_index "users", ["email"], :name => "users_email_idx"
     add_index "users", ["display_name"], :name => "users_display_name_idx"
 
-    create_table "way_segments", myisam_table do |t|
-      t.column "id",          :bigint,  :limit => 64, :default => 0, :null => false
+    create_table "way_segments", :id => false do |t|
+      t.column "id",          :bigint, :default => 0, :null => false
       t.column "segment_id",  :integer
-      t.column "version",     :bigint,  :limit => 20, :default => 0, :null => false
-      t.column "sequence_id", :bigint,  :limit => 11,                :null => false
+      t.column "version",     :bigint, :default => 0, :null => false
+      t.column "sequence_id", :bigint, :null => false
     end
 
     add_primary_key "way_segments", ["id", "version", "sequence_id"]
 
-    change_column "way_segments", "sequence_id", :bigint_auto_11
-
-    create_table "way_tags", myisam_table do |t|
-      t.column "id",      :bigint,  :limit => 64, :default => 0, :null => false
+    create_table "way_tags", :id => false do |t|
+      t.column "id",      :bigint, :default => 0, :null => false
       t.column "k",       :string
       t.column "v",       :string
-      t.column "version", :bigint,  :limit => 20
+      t.column "version", :bigint
     end
 
     add_index "way_tags", ["id", "version"], :name => "way_tags_id_version_idx"
 
-    create_table "ways", myisam_table do |t|
-      t.column "id",        :bigint,   :limit => 64, :default => 0, :null => false
-      t.column "user_id",   :bigint,   :limit => 20
+    create_table "ways", :id => false do |t|
+      t.column "id",        :bigint, :default => 0, :null => false
+      t.column "user_id",   :bigint
       t.column "timestamp", :datetime
-      t.column "version",   :bigint,   :limit => 20,                   :null => false
-      t.column "visible",   :boolean,                :default => true
+      t.column "version",   :bigint, :null => false
+      t.column "visible",   :boolean, :default => true
     end
 
     add_primary_key "ways", ["id", "version"]
     add_index "ways", ["id"], :name => "ways_id_version_idx"
-
-    change_column "ways", "version", :bigint_auto_20
   end
 
   def self.down
diff --git a/db/migrate/002_cleanup_osm_db.rb b/db/migrate/002_cleanup_osm_db.rb
index 630661a0b..fb27c91b7 100644
--- a/db/migrate/002_cleanup_osm_db.rb
+++ b/db/migrate/002_cleanup_osm_db.rb
@@ -2,34 +2,33 @@ require 'migrate'
 
 class CleanupOsmDb < ActiveRecord::Migration
   def self.up
-    change_column "current_nodes", "latitude", :double, :null => false
-    change_column "current_nodes", "longitude", :double, :null => false
-    change_column "current_nodes", "user_id", :bigint, :limit => 20, :null => false
+    change_column "current_nodes", "latitude", :float, :limit => 53, :null => false
+    change_column "current_nodes", "longitude", :float, :limit => 53, :null => false
+    change_column "current_nodes", "user_id", :bigint, :null => false
     change_column "current_nodes", "visible", :boolean, :null => false
     change_column "current_nodes", "timestamp", :datetime, :null => false
     add_primary_key "current_nodes", ["id"]
     remove_index "current_nodes", :name => "current_nodes_id_idx"
 
-    change_column "current_segments", "node_a", :bigint, :limit => 64, :null => false
-    change_column "current_segments", "node_b", :bigint, :limit => 64, :null => false
-    change_column "current_segments", "user_id", :bigint, :limit => 20, :null => false
+    change_column "current_segments", "node_a", :bigint, :null => false
+    change_column "current_segments", "node_b", :bigint, :null => false
+    change_column "current_segments", "user_id", :bigint, :null => false
     change_column "current_segments", "visible", :boolean, :null => false
     change_column "current_segments", "timestamp", :datetime, :null => false
     add_primary_key "current_segments", ["id"]
     remove_index "current_segments", :name => "current_segments_id_visible_idx"
 
-    change_column "current_way_segments", "id", :bigint, :limit => 64, :null => false
-    change_column "current_way_segments", "segment_id", :bigint, :limit => 64, :null => false
-    change_column "current_way_segments", "sequence_id", :bigint, :limit => 11, :null => false
+    change_column "current_way_segments", "id", :bigint, :null => false
+    change_column "current_way_segments", "segment_id", :bigint, :null => false
+    change_column "current_way_segments", "sequence_id", :bigint, :null => false
     add_primary_key "current_way_segments", ["id", "sequence_id"]
     remove_index "current_way_segments", :name => "current_way_segments_id_idx"
 
-    change_column "current_way_tags", "id", :bigint, :limit => 64, :null => false
+    change_column "current_way_tags", "id", :bigint, :null => false
 
-    change_column "current_ways", "user_id", :bigint, :limit => 20, :null => false
+    change_column "current_ways", "user_id", :bigint, :null => false
     change_column "current_ways", "timestamp", :datetime, :null => false
     change_column "current_ways", "visible", :boolean, :null => false
-    change_engine "current_ways", "InnoDB"
 
     change_column "diary_entries", "title", :string, :null => false
     change_column "diary_entries", "body", :text, :null => false
@@ -45,11 +44,11 @@ class CleanupOsmDb < ActiveRecord::Migration
     change_column "gps_points", "trackid", :integer, :null => false
     change_column "gps_points", "latitude", :integer, :null => false
     change_column "gps_points", "longitude", :integer, :null => false
-    change_column "gps_points", "gpx_id", :bigint, :limit => 64, :null => false
+    change_column "gps_points", "gpx_id", :bigint, :null => false
 
     change_column "gpx_file_tags", "tag", :string, :null => false
 
-    change_column "gpx_files", "user_id", :bigint,   :limit => 20, :null => false
+    change_column "gpx_files", "user_id", :bigint, :null => false
     change_column "gpx_files", "timestamp", :datetime, :null => false
     change_column "gpx_files", "description", :string, :default => "", :null => false
     change_column "gpx_files", "inserted", :boolean, :null => false
@@ -67,18 +66,18 @@ class CleanupOsmDb < ActiveRecord::Migration
 
     drop_table "meta_areas"
 
-    change_column "nodes", "id", :bigint, :limit => 64, :null => false
-    change_column "nodes", "latitude", :double, :null => false
-    change_column "nodes", "longitude", :double, :null => false
-    change_column "nodes", "user_id", :bigint, :limit => 20, :null => false
+    change_column "nodes", "id", :bigint, :null => false
+    change_column "nodes", "latitude", :float, :limit => 53, :null => false
+    change_column "nodes", "longitude", :float, :limit => 53, :null => false
+    change_column "nodes", "user_id", :bigint, :null => false
     change_column "nodes", "visible", :boolean, :null => false
     change_column "nodes", "timestamp", :datetime, :null => false
     add_index "nodes", ["timestamp"], :name => "nodes_timestamp_idx"
 
-    change_column "segments", "id", :bigint, :limit => 64, :null => false
-    change_column "segments", "node_a", :bigint, :limit => 64, :null => false
-    change_column "segments", "node_b", :bigint, :limit => 64, :null => false
-    change_column "segments", "user_id", :bigint, :limit => 20, :null => false
+    change_column "segments", "id", :bigint, :null => false
+    change_column "segments", "node_a", :bigint, :null => false
+    change_column "segments", "node_b", :bigint, :null => false
+    change_column "segments", "user_id", :bigint, :null => false
     change_column "segments", "visible", :boolean, :null => false
     change_column "segments", "timestamp", :datetime, :null => false
     add_index "segments", ["timestamp"], :name => "segments_timestamp_idx"
@@ -89,20 +88,20 @@ class CleanupOsmDb < ActiveRecord::Migration
     change_column "users", "creation_time", :datetime, :null => false
     change_column "users", "display_name", :string, :default => "", :null => false
     change_column "users", "data_public", :boolean, :default => false, :null => false
-    change_column "users", "home_lat", :double, :default => nil
-    change_column "users", "home_lon", :double, :default => nil
+    change_column "users", "home_lat", :float, :limit => 53, :default => nil
+    change_column "users", "home_lon", :float, :limit => 53, :default => nil
     remove_index "users", :name => "users_email_idx"
     add_index "users", ["email"], :name => "users_email_idx", :unique => true
     remove_index "users", :name => "users_display_name_idx"
     add_index "users", ["display_name"], :name => "users_display_name_idx", :unique => true
 
-    change_column "way_segments", "segment_id", :bigint, :limit => 64, :null => false
+    change_column "way_segments", "segment_id", :bigint, :null => false
  
     change_column "way_tags", "k", :string, :null => false
     change_column "way_tags", "v", :string, :null => false
-    change_column "way_tags", "version", :bigint, :limit => 20, :null => false
+    change_column "way_tags", "version", :bigint, :null => false
 
-    change_column "ways", "user_id", :bigint, :limit => 20, :null => false
+    change_column "ways", "user_id", :bigint, :null => false
     change_column "ways", "timestamp", :datetime, :null => false
     change_column "ways", "visible", :boolean, :default => true, :null => false
     remove_index "ways", :name => "ways_id_version_idx"
@@ -114,9 +113,9 @@ class CleanupOsmDb < ActiveRecord::Migration
     add_index "ways", ["id"], :name => "ways_id_version_idx"
     change_column "ways", "visible", :boolean, :default => true
     change_column "ways", "timestamp", :datetime
-    change_column "ways", "user_id", :bigint, :limit => 20
+    change_column "ways", "user_id", :bigint
 
-    change_column "way_tags", "version", :bigint, :limit => 20
+    change_column "way_tags", "version", :bigint
     change_column "way_tags", "v", :string, :default => nil
     change_column "way_tags", "k", :string, :default => nil
 
@@ -126,8 +125,8 @@ class CleanupOsmDb < ActiveRecord::Migration
     add_index "users", ["display_name"], :name => "users_display_name_idx"
     remove_index "users", :name => "users_email_idx"
     add_index "users", ["email"], :name => "users_email_idx"
-    change_column "users", "home_lon", :double, :default => 1
-    change_column "users", "home_lat", :double, :default => 1
+    change_column "users", "home_lon", :float, :limit => 53, :default => 1
+    change_column "users", "home_lat", :float, :limit => 53, :default => 1
     change_column "users", "data_public", :boolean, :default => false
     change_column "users", "display_name", :string, :default => ""
     change_column "users", "creation_time", :datetime
@@ -138,22 +137,22 @@ class CleanupOsmDb < ActiveRecord::Migration
     remove_index "segments", :name => "segments_timestamp_idx"
     change_column "segments", "timestamp", :datetime
     change_column "segments", "visible", :boolean
-    change_column "segments", "user_id", :bigint, :limit => 20
-    change_column "segments", "node_b", :bigint, :limit => 64
-    change_column "segments", "node_a", :bigint, :limit => 64
-    change_column "segments", "id", :bigint, :limit => 64
+    change_column "segments", "user_id", :bigint
+    change_column "segments", "node_b", :bigint
+    change_column "segments", "node_a", :bigint
+    change_column "segments", "id", :bigint
 
     remove_index "nodes", :name => "nodes_timestamp_idx"
     change_column "nodes", "timestamp", :datetime
     change_column "nodes", "visible", :boolean
-    change_column "nodes", "user_id", :bigint, :limit => 20
-    change_column "nodes", "longitude", :double
-    change_column "nodes", "latitude", :double
-    change_column "nodes", "id", :bigint, :limit => 64
-
-    create_table "meta_areas", myisam_table do |t|
-      t.column "id",        :bigint_pk_64, :null => false
-      t.column "user_id",   :bigint,  :limit => 20
+    change_column "nodes", "user_id", :bigint
+    change_column "nodes", "longitude", :float, :limit => 53
+    change_column "nodes", "latitude", :float, :limit => 53
+    change_column "nodes", "id", :bigint
+
+    create_table "meta_areas", :id => false do |t|
+      t.column "id", :bigserial, :primary_key => true, :null => false
+      t.column "user_id", :bigint
       t.column "timestamp", :datetime
     end
 
@@ -163,27 +162,27 @@ class CleanupOsmDb < ActiveRecord::Migration
     change_column "messages", "body", :text
     change_column "messages", "title", :string, :default => nil
     add_column "messages", "from_display_name", :string, :default => ""
-    add_column "messages", "user_id", :bigint, :limit => 20, :null => false
+    add_column "messages", "user_id", :bigint, :null => false
     add_index "messages", ["from_display_name"], :name => "from_name_idx"
 
-    create_table "gpx_pending_files", myisam_table do |t|
+    create_table "gpx_pending_files", :id => false do |t|
       t.column "originalname", :string
-      t.column "tmpname",      :string
-      t.column "user_id",      :bigint,  :limit => 20
+      t.column "tmpname", :string
+      t.column "user_id", :bigint
     end
 
     change_column "gpx_files", "inserted", :boolean
     change_column "gpx_files", "description", :string, :default => ""
     change_column "gpx_files", "timestamp", :datetime
-    change_column "gpx_files", "user_id", :bigint,   :limit => 20
+    change_column "gpx_files", "user_id", :bigint
 
     change_column "gpx_file_tags", "tag", :string, :default => nil
 
-    change_column "gps_points", "gpx_id", :integer, :limit => 20
+    change_column "gps_points", "gpx_id", :integer
     change_column "gps_points", "longitude", :integer
     change_column "gps_points", "latitude", :integer
     change_column "gps_points", "trackid", :integer
-    add_column "gps_points", "user_id", :integer, :limit => 20
+    add_column "gps_points", "user_id", :integer
     add_index "gps_points", ["user_id"], :name => "points_uid_idx"
 
     remove_index "friends", :name => "friends_user_id_idx"
@@ -193,34 +192,32 @@ class CleanupOsmDb < ActiveRecord::Migration
     change_column "diary_entries", "body", :text
     change_column "diary_entries", "title", :string, :default => nil
 
-    change_engine "current_ways", "MyISAM"
     change_column "current_ways", "visible", :boolean
     change_column "current_ways", "timestamp", :datetime
-    change_column "current_ways", "user_id", :bigint, :limit => 20
+    change_column "current_ways", "user_id", :bigint
 
-    change_column "current_way_tags", "id", :bigint, :limit => 64
+    change_column "current_way_tags", "id", :bigint
 
     add_index "current_way_segments", ["id"], :name => "current_way_segments_id_idx"
     remove_primary_key "current_way_segments"
-    change_column "current_way_segments", "sequence_id", :bigint, :limit => 11
-    change_column "current_way_segments", "segment_id", :bigint, :limit => 11
-    change_column "current_way_segments", "id", :bigint, :limit => 64
+    change_column "current_way_segments", "sequence_id", :bigint
+    change_column "current_way_segments", "segment_id", :bigint
+    change_column "current_way_segments", "id", :bigint
 
     add_index "current_segments", ["id", "visible"], :name => "current_segments_id_visible_idx"
     remove_primary_key "current_segments"
     change_column "current_segments", "timestamp", :datetime
     change_column "current_segments", "visible", :boolean
-    change_column "current_segments", "user_id", :bigint, :limit => 20
-    change_column "current_segments", "node_b", :bigint, :limit => 64
-    change_column "current_segments", "node_a", :bigint, :limit => 64
+    change_column "current_segments", "user_id", :bigint
+    change_column "current_segments", "node_b", :bigint
+    change_column "current_segments", "node_a", :bigint
     
     add_index "current_nodes", ["id"], :name => "current_nodes_id_idx"
     remove_primary_key "current_nodes"
     change_column "current_nodes", "timestamp", :datetime
     change_column "current_nodes", "visible", :boolean
-    change_column "current_nodes", "user_id", :bigint, :limit => 20
-    change_column "current_nodes", "longitude", :double
-    change_column "current_nodes", "latitude", :double
-    change_column "current_nodes", "id", :bigint_auto_64
+    change_column "current_nodes", "user_id", :bigint
+    change_column "current_nodes", "longitude", :float, :limit => 53
+    change_column "current_nodes", "latitude", :float, :limit => 53
   end
 end
diff --git a/db/migrate/003_sql_session_store_setup.rb b/db/migrate/003_sql_session_store_setup.rb
index 5853d4d00..69ad969b7 100644
--- a/db/migrate/003_sql_session_store_setup.rb
+++ b/db/migrate/003_sql_session_store_setup.rb
@@ -2,7 +2,7 @@ require 'migrate'
 
 class SqlSessionStoreSetup < ActiveRecord::Migration
   def self.up
-    create_table "sessions", :options => innodb_option do |t|
+    create_table "sessions" do |t|
       t.column "session_id", :string
       t.column "data",       :text
       t.column "created_at", :timestamp
diff --git a/db/migrate/004_user_enhancements.rb b/db/migrate/004_user_enhancements.rb
index af4b65123..8b352be3e 100644
--- a/db/migrate/004_user_enhancements.rb
+++ b/db/migrate/004_user_enhancements.rb
@@ -2,23 +2,23 @@ require 'migrate'
 
 class UserEnhancements < ActiveRecord::Migration
   def self.up
-    add_column "diary_entries", "latitude", :double
-    add_column "diary_entries", "longitude", :double
+    add_column "diary_entries", "latitude", :float, :limit => 53
+    add_column "diary_entries", "longitude", :float, :limit => 53
     add_column "diary_entries", "language", :string, :limit => 3
 
-    create_table "user_preferences", innodb_table do |t|
-      t.column "user_id", :bigint, :limit => 20, :null => false
-      t.column "k",       :string, :null => false
-      t.column "v",       :string, :null => false
+    create_table "user_preferences", :id => false do |t|
+      t.column "user_id", :bigint, :null => false
+      t.column "k", :string, :null => false
+      t.column "v", :string, :null => false
     end
 
     add_primary_key "user_preferences", ["user_id", "k"]
 
-    create_table "user_tokens", innodb_table do |t|
-      t.column "id",      :bigint_pk, :null => false
-      t.column "user_id", :bigint,   :limit => 20, :null => false
-      t.column "token",   :string,   :null => false
-      t.column "expiry",  :datetime, :null => false
+    create_table "user_tokens", :id => false do |t|
+      t.column "id", :bigserial, :primary_key => true, :null => false
+      t.column "user_id", :bigint, :null => false
+      t.column "token", :string, :null => false
+      t.column "expiry", :datetime, :null => false
     end
 
     add_index "user_tokens", ["token"], :name => "user_tokens_token_idx", :unique => true
@@ -41,8 +41,8 @@ class UserEnhancements < ActiveRecord::Migration
   def self.down
     remove_column "users", "pass_salt"
     remove_column "users", "nearby"
-    add_column "users", "within_lat", :double
-    add_column "users", "within_lon", :double
+    add_column "users", "within_lat", :float, :limit => 53
+    add_column "users", "within_lon", :float, :limit => 53
     add_column "users", "timeout", :datetime
     add_column "users", "token", :string
 
diff --git a/db/migrate/005_tile_tracepoints.rb b/db/migrate/005_tile_tracepoints.rb
index d429b6fdc..fea6d4137 100644
--- a/db/migrate/005_tile_tracepoints.rb
+++ b/db/migrate/005_tile_tracepoints.rb
@@ -2,7 +2,7 @@ require 'migrate'
 
 class TileTracepoints < ActiveRecord::Migration
   def self.up
-    add_column "gps_points", "tile", :four_byte_unsigned
+    add_column "gps_points", "tile", :bigint
     add_index "gps_points", ["tile"], :name => "points_tile_idx"
     remove_index "gps_points", :name => "points_idx"
 
diff --git a/db/migrate/006_tile_nodes.rb b/db/migrate/006_tile_nodes.rb
index 91f8acb6b..8bfb6bc3f 100644
--- a/db/migrate/006_tile_nodes.rb
+++ b/db/migrate/006_tile_nodes.rb
@@ -39,21 +39,21 @@ class TileNodes < ActiveRecord::Migration
 
     rename_table "current_nodes", "current_nodes_v5"
 
-    create_table "current_nodes", innodb_table do |t|
-      t.column "id",        :bigint_pk_64,                           :null => false
-      t.column "latitude",  :integer,                                :null => false
-      t.column "longitude", :integer,                                :null => false
-      t.column "user_id",   :bigint,   :limit => 20,                 :null => false
-      t.column "visible",   :boolean,                                :null => false
-      t.column "tags",      :text,                   :default => "", :null => false
-      t.column "timestamp", :datetime,                               :null => false
-      t.column "tile",      :integer,                                :null => false
+    create_table "current_nodes", :id => false do |t|
+      t.column "id",        :bigserial, :primary_key => true, :null => false
+      t.column "latitude",  :integer, :null => false
+      t.column "longitude", :integer, :null => false
+      t.column "user_id",   :bigint, :null => false
+      t.column "visible",   :boolean, :null => false
+      t.column "tags",      :text, :default => "", :null => false
+      t.column "timestamp", :datetime, :null => false
+      t.column "tile",      :integer, :null => false
     end
 
     add_index "current_nodes", ["timestamp"], :name => "current_nodes_timestamp_idx"
     add_index "current_nodes", ["tile"], :name => "current_nodes_tile_idx"
 
-    change_column "current_nodes", "tile", :four_byte_unsigned
+    change_column "current_nodes", "tile", :bigint
 
     upgrade_table "current_nodes_v5", "current_nodes", Node
     
@@ -63,22 +63,22 @@ class TileNodes < ActiveRecord::Migration
     remove_index "nodes", :name=> "nodes_timestamp_idx"
     rename_table "nodes", "nodes_v5"
 
-    create_table "nodes", myisam_table do |t|
-      t.column "id",        :bigint,   :limit => 64,                 :null => false
-      t.column "latitude",  :integer,                                :null => false
-      t.column "longitude", :integer,                                :null => false
-      t.column "user_id",   :bigint,   :limit => 20,                 :null => false
-      t.column "visible",   :boolean,                                :null => false
-      t.column "tags",      :text,                   :default => "", :null => false
-      t.column "timestamp", :datetime,                               :null => false
-      t.column "tile",      :integer,                                :null => false
+    create_table "nodes", :id => false do |t|
+      t.column "id",        :bigint, :null => false
+      t.column "latitude",  :integer, :null => false
+      t.column "longitude", :integer, :null => false
+      t.column "user_id",   :bigint, :null => false
+      t.column "visible",   :boolean, :null => false
+      t.column "tags",      :text, :default => "", :null => false
+      t.column "timestamp", :datetime, :null => false
+      t.column "tile",      :integer, :null => false
     end
 
     add_index "nodes", ["id"], :name => "nodes_uid_idx"
     add_index "nodes", ["timestamp"], :name => "nodes_timestamp_idx"
     add_index "nodes", ["tile"], :name => "nodes_tile_idx"
 
-    change_column "nodes", "tile", :four_byte_unsigned
+    change_column "nodes", "tile", :bigint
 
     upgrade_table "nodes_v5", "nodes", OldNode
 
@@ -88,14 +88,14 @@ class TileNodes < ActiveRecord::Migration
   def self.down
     rename_table "current_nodes", "current_nodes_v6"
 
-    create_table "current_nodes", innodb_table do |t|
-      t.column "id",        :bigint_pk_64,                           :null => false
-      t.column "latitude",  :double,                                 :null => false
-      t.column "longitude", :double,                                 :null => false
-      t.column "user_id",   :bigint,   :limit => 20,                 :null => false
-      t.column "visible",   :boolean,                                :null => false
-      t.column "tags",      :text,                   :default => "", :null => false
-      t.column "timestamp", :datetime,                               :null => false
+    create_table "current_nodes", :id => false do |t|
+      t.column "id",        :bigserial, :primary_key => true, :null => false
+      t.column "latitude",  :float, :limit => 53, :null => false
+      t.column "longitude", :float, :limit => 53, :null => false
+      t.column "user_id",   :bigint, :null => false
+      t.column "visible",   :boolean, :null => false
+      t.column "tags",      :text, :default => "", :null => false
+      t.column "timestamp", :datetime, :null => false
     end
 
     add_index "current_nodes", ["latitude", "longitude"], :name => "current_nodes_lat_lon_idx"
@@ -107,14 +107,14 @@ class TileNodes < ActiveRecord::Migration
 
     rename_table "nodes", "nodes_v6"
 
-    create_table "nodes", myisam_table do |t|
-      t.column "id",        :bigint,   :limit => 64,                 :null => false
-      t.column "latitude",  :double,                                 :null => false
-      t.column "longitude", :double,                                 :null => false
-      t.column "user_id",   :bigint,   :limit => 20,                 :null => false
-      t.column "visible",   :boolean,                                :null => false
-      t.column "tags",      :text,                   :default => "", :null => false
-      t.column "timestamp", :datetime,                               :null => false
+    create_table "nodes", :id => false do |t|
+      t.column "id",        :bigint, :null => false
+      t.column "latitude",  :float, :limit => 53, :null => false
+      t.column "longitude", :float, :limit => 53, :null => false
+      t.column "user_id",   :bigint, :null => false
+      t.column "visible",   :boolean, :null => false
+      t.column "tags",      :text, :default => "", :null => false
+      t.column "timestamp", :datetime, :null => false
     end
 
     add_index "nodes", ["id"], :name => "nodes_uid_idx"
diff --git a/db/migrate/007_add_relations.rb b/db/migrate/007_add_relations.rb
index 41d62928f..4a0f74c52 100644
--- a/db/migrate/007_add_relations.rb
+++ b/db/migrate/007_add_relations.rb
@@ -9,10 +9,10 @@ class AddRelations < ActiveRecord::Migration
     # differences:
     # way: only nodes / relation: any kind of member
     # way: ordered sequence of nodes / relation: free-form "role" string
-    create_table "current_relation_members", innodb_table do |t|
-      t.column "id",          :bigint,   :limit => 64, :null => false
+    create_table "current_relation_members", :id => false do |t|
+      t.column "id",          :bigint, :null => false
       t.column "member_type", :nwr_enum, :null => false
-      t.column "member_id",   :bigint,   :limit => 11, :null => false
+      t.column "member_id",   :bigint, :null => false
       t.column "member_role", :string
     end
 
@@ -20,57 +20,54 @@ class AddRelations < ActiveRecord::Migration
     add_index "current_relation_members", ["member_type", "member_id"], :name => "current_relation_members_member_idx"
     # the following is obsolete given the primary key, is it not?
     # add_index "current_relation_members", ["id"], :name => "current_relation_members_id_idx"
-    create_table "current_relation_tags", myisam_table do |t|
-      t.column "id", :bigint, :limit => 64, :null => false
+    create_table "current_relation_tags", :id => false do |t|
+      t.column "id", :bigint, :null => false
       t.column "k",  :string, :default => "", :null => false
       t.column "v",  :string, :default => "", :null => false
     end
 
     add_index "current_relation_tags", ["id"], :name => "current_relation_tags_id_idx"
-    add_fulltext_index "current_relation_tags", "v"
+    add_index "current_relation_tags", "v", :name => "current_relation_tags_v_idx"
 
-    create_table "current_relations", innodb_table do |t|
-      t.column "id",        :bigint_pk_64,           :null => false
-      t.column "user_id",   :bigint,   :limit => 20, :null => false
+    create_table "current_relations", :id => false do |t|
+      t.column "id",        :bigserial, :primary_key => true, :null => false
+      t.column "user_id",   :bigint, :null => false
       t.column "timestamp", :datetime, :null => false
-      t.column "visible",   :boolean,  :null => false
+      t.column "visible",   :boolean, :null => false
     end
 
-    create_table "relation_members", myisam_table do |t|
-      t.column "id",          :bigint,   :limit => 64, :default => 0, :null => false
+    create_table "relation_members", :id => false do |t|
+      t.column "id",          :bigint, :default => 0, :null => false
       t.column "member_type", :nwr_enum, :null => false
-      t.column "member_id",   :bigint,   :limit => 11, :null => false
+      t.column "member_id",   :bigint, :null => false
       t.column "member_role", :string
-      t.column "version",     :bigint,   :limit => 20, :default => 0, :null => false
+      t.column "version",     :bigint, :default => 0, :null => false
     end
 
     add_primary_key "relation_members", ["id", "version", "member_type", "member_id", "member_role"]
     add_index "relation_members", ["member_type", "member_id"], :name => "relation_members_member_idx"
 
-    create_table "relation_tags", myisam_table do |t|
-      t.column "id",      :bigint,  :limit => 64, :default => 0, :null => false
+    create_table "relation_tags", :id => false do |t|
+      t.column "id",      :bigint, :default => 0, :null => false
       t.column "k",       :string, :null => false, :default => ""
       t.column "v",       :string, :null => false, :default => ""
-      t.column "version", :bigint,  :limit => 20, :null => false
+      t.column "version", :bigint, :null => false
     end
 
     add_index "relation_tags", ["id", "version"], :name => "relation_tags_id_version_idx"
 
-    create_table "relations", myisam_table do |t|
-      t.column "id",        :bigint,   :limit => 64, :null => false, :default => 0
-      t.column "user_id",   :bigint,   :limit => 20, :null => false
-      t.column "timestamp", :datetime,               :null => false
-      t.column "version",   :bigint,   :limit => 20, :null => false
-      t.column "visible",   :boolean,                :null => false, :default => true
+    create_table "relations", :id => false do |t|
+      t.column "id",        :bigint, :null => false, :default => 0
+      t.column "user_id",   :bigint, :null => false
+      t.column "timestamp", :datetime, :null => false
+      t.column "version",   :bigint, :null => false
+      t.column "visible",   :boolean, :null => false, :default => true
     end
 
     add_primary_key "relations", ["id", "version"]
     add_index "relations", ["timestamp"], :name => "relations_timestamp_idx"
-    
-    change_column "relations", "version", :bigint_auto_20
   end
 
-
   def self.down
     drop_table :relations
     drop_table :current_relations
diff --git a/db/migrate/008_remove_segments.rb b/db/migrate/008_remove_segments.rb
index ce49e9cca..0c68ce050 100644
--- a/db/migrate/008_remove_segments.rb
+++ b/db/migrate/008_remove_segments.rb
@@ -28,20 +28,20 @@ class RemoveSegments < ActiveRecord::Migration
 
     drop_table :segments
     drop_table :way_segments
-    create_table :way_nodes, myisam_table do |t|
-      t.column :id,          :bigint, :limit => 64, :null => false
-      t.column :node_id,     :bigint, :limit => 64, :null => false
-      t.column :version,     :bigint, :limit => 20, :null => false
-      t.column :sequence_id, :bigint, :limit => 11, :null => false
+    create_table :way_nodes, :id => false do |t|
+      t.column :id,          :bigint, :null => false
+      t.column :node_id,     :bigint, :null => false
+      t.column :version,     :bigint, :null => false
+      t.column :sequence_id, :bigint, :null => false
     end
     add_primary_key :way_nodes, [:id, :version, :sequence_id]
 
     drop_table :current_segments
     drop_table :current_way_segments
-    create_table :current_way_nodes, innodb_table do |t|
-      t.column :id,          :bigint, :limit => 64, :null => false
-      t.column :node_id,     :bigint, :limit => 64, :null => false
-      t.column :sequence_id, :bigint, :limit => 11, :null => false
+    create_table :current_way_nodes, :id => false do |t|
+      t.column :id,          :bigint, :null => false
+      t.column :node_id,     :bigint, :null => false
+      t.column :sequence_id, :bigint, :null => false
     end
     add_primary_key :current_way_nodes, [:id, :sequence_id]
     add_index :current_way_nodes, [:node_id], :name => "current_way_nodes_node_idx"
diff --git a/db/migrate/010_diary_comments.rb b/db/migrate/010_diary_comments.rb
index ecad2f5dc..ad2edffa4 100644
--- a/db/migrate/010_diary_comments.rb
+++ b/db/migrate/010_diary_comments.rb
@@ -2,13 +2,13 @@ require 'migrate'
 
 class DiaryComments < ActiveRecord::Migration
   def self.up
-    create_table "diary_comments", myisam_table do |t|
-      t.column "id",             :bigint_pk,              :null => false
-      t.column "diary_entry_id", :bigint,   :limit => 20, :null => false
-      t.column "user_id",        :bigint,   :limit => 20, :null => false
-      t.column "body",           :text,                   :null => false
-      t.column "created_at",     :datetime,               :null => false
-      t.column "updated_at",     :datetime,               :null => false
+    create_table "diary_comments", :id => false do |t|
+      t.column "id",             :bigserial, :primary_key => true, :null => false
+      t.column "diary_entry_id", :bigint, :null => false
+      t.column "user_id",        :bigint, :null => false
+      t.column "body",           :text, :null => false
+      t.column "created_at",     :datetime, :null => false
+      t.column "updated_at",     :datetime, :null => false
     end
 
     add_index "diary_comments", ["diary_entry_id", "id"], :name => "diary_comments_entry_id_idx", :unique => true
diff --git a/db/migrate/018_create_acls.rb b/db/migrate/018_create_acls.rb
index 08ed4f731..0db06f30c 100644
--- a/db/migrate/018_create_acls.rb
+++ b/db/migrate/018_create_acls.rb
@@ -2,11 +2,11 @@ require 'migrate'
 
 class CreateAcls < ActiveRecord::Migration
   def self.up
-    create_table "acls", myisam_table do |t|
-      t.column "id",      :integer_pk, :null => false
-      t.column "address", :inet,       :null => false
-      t.column "netmask", :inet,       :null => false
-      t.column "k",       :string,     :null => false
+    create_table "acls", :id => false do |t|
+      t.column "id",      :primary_key, :null => false
+      t.column "address", :inet, :null => false
+      t.column "netmask", :inet, :null => false
+      t.column "k",       :string, :null => false
       t.column "v",       :string
     end
 
diff --git a/db/migrate/020_populate_node_tags_and_remove.rb b/db/migrate/020_populate_node_tags_and_remove.rb
index 4c9628f27..8fa7b7e5d 100644
--- a/db/migrate/020_populate_node_tags_and_remove.rb
+++ b/db/migrate/020_populate_node_tags_and_remove.rb
@@ -27,17 +27,17 @@ class PopulateNodeTagsAndRemove < ActiveRecord::Migration
     remove_column :nodes, :tags
     remove_column :current_nodes, :tags
 
-    add_column :nodes, :version, :bigint, :limit => 20, :null => false
+    add_column :nodes, :version, :bigint, :null => false
 
-    create_table :current_node_tags, innodb_table do |t|
-      t.column :id,          :bigint, :limit => 64, :null => false
+    create_table :current_node_tags, :id => false do |t|
+      t.column :id,          :bigint, :null => false
       t.column :k,	     :string, :default => "", :null => false
       t.column :v,	     :string, :default => "", :null => false
     end
 
-    create_table :node_tags, innodb_table do |t|
-      t.column :id,          :bigint, :limit => 64, :null => false
-      t.column :version,     :bigint, :limit => 20, :null => false
+    create_table :node_tags, :id => false do |t|
+      t.column :id,          :bigint, :null => false
+      t.column :version,     :bigint, :null => false
       t.column :k,	     :string, :default => "", :null => false
       t.column :v,	     :string, :default => "", :null => false
     end
diff --git a/db/migrate/021_move_to_innodb.rb b/db/migrate/021_move_to_innodb.rb
index f9110cca6..030515a98 100644
--- a/db/migrate/021_move_to_innodb.rb
+++ b/db/migrate/021_move_to_innodb.rb
@@ -12,15 +12,11 @@ class MoveToInnodb < ActiveRecord::Migration
     remove_index :current_relation_tags, :name=> :current_relation_tags_v_idx
 
     @@ver_tbl.each { |tbl|
-      change_column tbl, "version", :bigint, :limit => 20, :null => false
-    }
-
-    @@conv_tables.each { |tbl|
-      change_engine tbl, "InnoDB"
+      change_column tbl, "version", :bigint, :null => false
     }
 
     @@ver_tbl.each { |tbl|
-      add_column "current_#{tbl}", "version", :bigint, :limit => 20, :null => false
+      add_column "current_#{tbl}", "version", :bigint, :null => false
       # As the initial version of all nodes, ways and relations is 0, we set the 
       # current version to something less so that we can update the version in 
       # batches of 10000
diff --git a/db/migrate/022_key_constraints.rb b/db/migrate/022_key_constraints.rb
index f94c965bb..e854ba78e 100644
--- a/db/migrate/022_key_constraints.rb
+++ b/db/migrate/022_key_constraints.rb
@@ -23,21 +23,21 @@ class KeyConstraints < ActiveRecord::Migration
     remove_index :nodes, :name => :nodes_uid_idx
 
     # Foreign keys (between ways, way_tags, way_nodes, etc.)
-    add_foreign_key :current_node_tags, [:id], :current_nodes
-    add_foreign_key :node_tags, [:id, :version], :nodes
+    add_foreign_key :current_node_tags, :current_nodes, :column => :id, :name => "current_node_tags_id_fkey"
+    add_foreign_key :node_tags, :nodes, :column => [:id, :version], :primary_key => [:id, :version], :name => "node_tags_id_fkey"
 
-    add_foreign_key :current_way_tags, [:id], :current_ways
-    add_foreign_key :current_way_nodes, [:id], :current_ways
-    add_foreign_key :way_tags, [:id, :version], :ways
-    add_foreign_key :way_nodes, [:id, :version], :ways
+    add_foreign_key :current_way_tags, :current_ways, :column => :id, :name => "current_way_tags_id_fkey"
+    add_foreign_key :current_way_nodes, :current_ways, :column => :id, :name => "current_way_nodes_id_fkey"
+    add_foreign_key :way_tags, :ways, :column => [:id, :version], :primary_key => [:id, :version], :name => "way_tags_id_fkey"
+    add_foreign_key :way_nodes, :ways, :column => [:id, :version], :primary_key => [:id, :version], :name => "way_nodes_id_fkey"
 
-    add_foreign_key :current_relation_tags, [:id], :current_relations
-    add_foreign_key :current_relation_members, [:id], :current_relations
-    add_foreign_key :relation_tags, [:id, :version], :relations
-    add_foreign_key :relation_members, [:id, :version], :relations
+    add_foreign_key :current_relation_tags, :current_relations, :column => :id, :name => "current_relation_tags_id_fkey"
+    add_foreign_key :current_relation_members, :current_relations, :column => :id, :name => "current_relation_members_id_fkey"
+    add_foreign_key :relation_tags, :relations, :column => [:id, :version], :primary_key => [:id, :version], :name => "relation_tags_id_fkey"
+    add_foreign_key :relation_members, :relations, :column => [:id, :version], :primary_key => [:id, :version], :name => "relation_members_id_fkey"
 
     # Foreign keys (between different types of primitives)
-    add_foreign_key :current_way_nodes, [:node_id], :current_nodes, [:id]
+    add_foreign_key :current_way_nodes, :current_nodes, :column => :node_id, :name => "current_way_nodes_node_id_fkey"
 
     # FIXME: We don't have foreign keys for relation members since the id
     # might point to a different table depending on the `type' column.
diff --git a/db/migrate/023_add_changesets.rb b/db/migrate/023_add_changesets.rb
index 5bee21512..3a6c32e19 100644
--- a/db/migrate/023_add_changesets.rb
+++ b/db/migrate/023_add_changesets.rb
@@ -5,19 +5,19 @@ class AddChangesets < ActiveRecord::Migration
   'current_relations', 'current_ways', 'nodes', 'relations', 'ways' ]
   
   def self.up
-    create_table "changesets", innodb_table do |t|
-      t.column "id",             :bigint_pk,              :null => false
-      t.column "user_id",        :bigint,   :limit => 20, :null => false
-      t.column "created_at",     :datetime,               :null => false
-      t.column "open",           :boolean,                :null => false, :default => true
-      t.column "min_lat",        :integer,                :null => true
-      t.column "max_lat",        :integer,                :null => true
-      t.column "min_lon",        :integer,                :null => true
-      t.column "max_lon",        :integer,                :null => true
+    create_table "changesets", :id => false do |t|
+      t.column "id",             :bigserial, :primary_key => true, :null => false
+      t.column "user_id",        :bigint, :null => false
+      t.column "created_at",     :datetime, :null => false
+      t.column "open",           :boolean, :null => false, :default => true
+      t.column "min_lat",        :integer, :null => true
+      t.column "max_lat",        :integer, :null => true
+      t.column "min_lon",        :integer, :null => true
+      t.column "max_lon",        :integer, :null => true
     end
 
-    create_table "changeset_tags", innodb_table do |t|
-      t.column "id", :bigint, :limit => 64, :null => false
+    create_table "changeset_tags", :id => false do |t|
+      t.column "id", :bigint, :null => false
       t.column "k",  :string, :default => "", :null => false
       t.column "v",  :string, :default => "", :null => false
     end
@@ -35,7 +35,7 @@ class AddChangesets < ActiveRecord::Migration
     @@conv_user_tables.each { |tbl|
       rename_column tbl, :user_id, :changeset_id
       #foreign keys too
-      add_foreign_key tbl, [:changeset_id], :changesets, [:id]
+      add_foreign_key tbl, :changesets, :name => "#{tbl}_changeset_id_fkey"
     }
   end
 
diff --git a/db/migrate/025_add_end_time_to_changesets.rb b/db/migrate/025_add_end_time_to_changesets.rb
index eaccc008f..32d27959a 100644
--- a/db/migrate/025_add_end_time_to_changesets.rb
+++ b/db/migrate/025_add_end_time_to_changesets.rb
@@ -9,8 +9,8 @@ class AddEndTimeToChangesets < ActiveRecord::Migration
     # it appears that execute will only accept string arguments, so
     # this is an ugly, ugly hack to get some sort of mysql/postgres
     # independence. now i have to go wash my brain with bleach.
-    execute("update changesets set closed_at=(now()-#{interval_constant('1 hour')}) where open=(1=0)")
-    execute("update changesets set closed_at=(now()+#{interval_constant('1 hour')}) where open=(1=1)")
+    execute("update changesets set closed_at=(now()-'1 hour'::interval) where open=(1=0)")
+    execute("update changesets set closed_at=(now()+'1 hour'::interval) where open=(1=1)")
 
     # remove the open column as it is unnecessary now and denormalises 
     # the table.
diff --git a/db/migrate/028_add_more_changeset_indexes.rb b/db/migrate/028_add_more_changeset_indexes.rb
index 45d014e9e..ea2dc0290 100644
--- a/db/migrate/028_add_more_changeset_indexes.rb
+++ b/db/migrate/028_add_more_changeset_indexes.rb
@@ -4,7 +4,7 @@ class AddMoreChangesetIndexes < ActiveRecord::Migration
   def self.up
     add_index "changesets", ["created_at"], :name => "changesets_created_at_idx"
     add_index "changesets", ["closed_at"], :name => "changesets_closed_at_idx"
-    add_index "changesets", ["min_lat","max_lat","min_lon","max_lon"], :name => "changesets_bbox_idx", :method => "GIST"
+    add_index "changesets", ["min_lat","max_lat","min_lon","max_lon"], :name => "changesets_bbox_idx", :using => "GIST"
   end
 
   def self.down
diff --git a/db/migrate/029_add_user_foreign_keys.rb b/db/migrate/029_add_user_foreign_keys.rb
index cb0d9e1dd..5d3532c72 100644
--- a/db/migrate/029_add_user_foreign_keys.rb
+++ b/db/migrate/029_add_user_foreign_keys.rb
@@ -1,20 +1,16 @@
 require 'migrate'
 
 class AddUserForeignKeys < ActiveRecord::Migration
-  def self.up
-    add_foreign_key :changesets, [:user_id], :users, [:id]
-    add_foreign_key :diary_comments, [:user_id], :users, [:id]
-    add_foreign_key :diary_entries, [:user_id], :users, [:id]
-    add_foreign_key :friends, [:user_id], :users, [:id]
-    add_foreign_key :friends, [:friend_user_id], :users, [:id]
-    add_foreign_key :gpx_files, [:user_id], :users, [:id]
-    add_foreign_key :messages, [:from_user_id], :users, [:id]
-    add_foreign_key :messages, [:to_user_id], :users, [:id]
-    add_foreign_key :user_preferences, [:user_id], :users, [:id]
-    add_foreign_key :user_tokens, [:user_id], :users, [:id]
-  end
-
-  def self.down
-    raise ActiveRecord::IrreversibleMigration
+  def change
+    add_foreign_key :changesets, :users, :name => "changesets_user_id_fkey"
+    add_foreign_key :diary_comments, :users, :name => "diary_comments_user_id_fkey"
+    add_foreign_key :diary_entries, :users, :name => "diary_entries_user_id_fkey"
+    add_foreign_key :friends, :users, :name => "friends_user_id_fkey"
+    add_foreign_key :friends, :users, :column => :friend_user_id, :name => "friends_friend_user_id_fkey"
+    add_foreign_key :gpx_files, :users, :name => "gpx_files_user_id_fkey"
+    add_foreign_key :messages, :users, :column => :from_user_id, :name => "messages_from_user_id_fkey"
+    add_foreign_key :messages, :users, :column => :to_user_id, :name => "messages_to_user_id_fkey"
+    add_foreign_key :user_preferences, :users, :name => "user_preferences_user_id_fkey"
+    add_foreign_key :user_tokens, :users, :name => "user_tokens_user_id_fkey"
   end
 end
diff --git a/db/migrate/030_add_foreign_keys.rb b/db/migrate/030_add_foreign_keys.rb
index e3dc7e82d..1b99f664d 100644
--- a/db/migrate/030_add_foreign_keys.rb
+++ b/db/migrate/030_add_foreign_keys.rb
@@ -2,10 +2,10 @@ require 'migrate'
 
 class AddForeignKeys < ActiveRecord::Migration
   def self.up
-    add_foreign_key :changeset_tags, [:id], :changesets
-    add_foreign_key :diary_comments, [:diary_entry_id], :diary_entries, [:id]
-    add_foreign_key :gps_points, [:gpx_id], :gpx_files, [:id]
-    add_foreign_key :gpx_file_tags, [:gpx_id], :gpx_files, [:id]
+    add_foreign_key :changeset_tags, :changesets, :column => :id, :name => "changeset_tags_id_fkey"
+    add_foreign_key :diary_comments, :diary_entries, :name => "diary_comments_diary_entry_id_fkey"
+    add_foreign_key :gps_points, :gpx_files, :column => :gpx_id, :name => "gps_points_gpx_id_fkey"
+    add_foreign_key :gpx_file_tags, :gpx_files, :column => :gpx_id, :name => "gpx_file_tags_gpx_id_fkey"
   end
 
   def self.down
diff --git a/db/migrate/031_create_countries.rb b/db/migrate/031_create_countries.rb
index 923d943f7..c0b4fb634 100644
--- a/db/migrate/031_create_countries.rb
+++ b/db/migrate/031_create_countries.rb
@@ -3,13 +3,13 @@ require 'rexml/document'
 
 class CreateCountries < ActiveRecord::Migration
   def self.up
-    create_table :countries, innodb_table do |t|
-      t.column :id,      :integer_pk,              :null => false
-      t.column :code,    :string,     :limit => 2, :null => false
-      t.column :min_lat, :double,                  :null => false
-      t.column :max_lat, :double,                  :null => false
-      t.column :min_lon, :double,                  :null => false
-      t.column :max_lon, :double,                  :null => false
+    create_table :countries, :id => false do |t|
+      t.column :id,      :primary_key, :null => false
+      t.column :code,    :string, :limit => 2, :null => false
+      t.column :min_lat, :float, :limit => 53, :null => false
+      t.column :max_lat, :float, :limit => 53, :null => false
+      t.column :min_lon, :float, :limit => 53, :null => false
+      t.column :max_lon, :float, :limit => 53, :null => false
     end
 
     add_index :countries, [:code], :name => "countries_code_idx", :unique => true
diff --git a/db/migrate/034_create_languages.rb b/db/migrate/034_create_languages.rb
index e62a3dff9..a9d683151 100644
--- a/db/migrate/034_create_languages.rb
+++ b/db/migrate/034_create_languages.rb
@@ -1,8 +1,8 @@
 require 'migrate'
 
 class CreateLanguages < ActiveRecord::Migration
-  def self.up
-    create_table :languages, innodb_table do |t|
+  def change
+    create_table :languages, :id => false do |t|
       t.string :code, :null => false
       t.string :english_name, :null => false
       t.string :native_name
@@ -12,11 +12,7 @@ class CreateLanguages < ActiveRecord::Migration
 
     Language.load("#{Rails.root}/config/languages.yml")
 
-    add_foreign_key :users, [:locale], :languages, [:code]
-    add_foreign_key :diary_entries, [:language_code], :languages, [:code]    
-  end
-
-  def self.down
-    raise ActiveRecord::IrreversibleMigration
+    add_foreign_key :users, :languages, :column => :locale, :primary_key => :code, :name => "users_locale_fkey"
+    add_foreign_key :diary_entries, :languages, :column => :language_code , :primary_key => :code, :name => "diary_entries_language_code_fkey"
   end
 end
diff --git a/db/migrate/035_change_user_locale.rb b/db/migrate/035_change_user_locale.rb
index bfb43056a..117e1cd0c 100644
--- a/db/migrate/035_change_user_locale.rb
+++ b/db/migrate/035_change_user_locale.rb
@@ -2,7 +2,7 @@ require 'migrate'
 
 class ChangeUserLocale < ActiveRecord::Migration
   def self.up
-    remove_foreign_key :users, [:locale], :languages, [:code]
+    remove_foreign_key :users, :column => :locale, :name => "users_locale_fkey"
 
     rename_column :users, :locale, :languages
   end
@@ -10,6 +10,6 @@ class ChangeUserLocale < ActiveRecord::Migration
   def self.down
     rename_column :users, :languages, :locale
 
-    add_foreign_key :users, [:locale], :languages, [:code]
+    add_foreign_key :users, :languages, :column => :locale, :primary_key => :code, :name => "users_locale_fkey"
   end
 end
diff --git a/db/migrate/042_add_foreign_keys_to_oauth_tables.rb b/db/migrate/042_add_foreign_keys_to_oauth_tables.rb
index ee8048a36..abc4e9c51 100644
--- a/db/migrate/042_add_foreign_keys_to_oauth_tables.rb
+++ b/db/migrate/042_add_foreign_keys_to_oauth_tables.rb
@@ -1,15 +1,9 @@
 require 'migrate'
 
 class AddForeignKeysToOauthTables < ActiveRecord::Migration
-  def self.up
-    add_foreign_key :oauth_tokens, [:user_id], :users, [:id]
-    add_foreign_key :oauth_tokens, [:client_application_id], :client_applications, [:id]
-    add_foreign_key :client_applications, [:user_id], :users, [:id]
-  end
-
-  def self.down
-    remove_foreign_key :oauth_tokens, [:user_id], :users
-    remove_foreign_key :oauth_tokens, [:client_application_id], :client_applications
-    remove_foreign_key :client_applications, [:user_id], :users
+  def change
+    add_foreign_key :oauth_tokens, :users, :name => "oauth_tokens_user_id_fkey"
+    add_foreign_key :oauth_tokens, :client_applications, :name => "oauth_tokens_client_application_id_fkey"
+    add_foreign_key :client_applications, :users, :name => "client_applications_user_id_fkey"
   end
 end
diff --git a/db/migrate/044_create_user_roles.rb b/db/migrate/044_create_user_roles.rb
index 0db3ea77e..26b2adf6f 100644
--- a/db/migrate/044_create_user_roles.rb
+++ b/db/migrate/044_create_user_roles.rb
@@ -6,26 +6,29 @@ class CreateUserRoles < ActiveRecord::Migration
 
     create_table :user_roles do |t|
       t.column :user_id, :bigint, :null => false
+      t.column :role, :user_role_enum, :null => false
 
       t.timestamps
     end
-    add_column :user_roles, :role, :user_role_enum, :null => false
 
     User.where(:administrator => true).each do |user|
       UserRole.create(:user_id => user.id, :role => "administrator")
     end
+
     remove_column :users, :administrator
 
-    add_foreign_key :user_roles, [:user_id], :users, [:id]
+    add_foreign_key :user_roles, :users, :name => "user_roles_user_id_fkey"
   end
 
   def self.down
     add_column :users, :administrator, :boolean, :default => false, :null => false
+
     UserRole.where(:role => "administrator").each do |role|
       user = User.find(role.user_id)
       user.administrator = true
       user.save!
     end
+
     drop_table :user_roles
     drop_enumeration :user_role_enum
   end
diff --git a/db/migrate/045_create_user_blocks.rb b/db/migrate/045_create_user_blocks.rb
index b3313ce92..e97822a0d 100644
--- a/db/migrate/045_create_user_blocks.rb
+++ b/db/migrate/045_create_user_blocks.rb
@@ -1,7 +1,7 @@
 require 'migrate'
 
 class CreateUserBlocks < ActiveRecord::Migration
-  def self.up
+  def change
     create_table :user_blocks do |t|
       t.column :user_id,      :bigint,   :null => false
       t.column :moderator_id, :bigint,   :null => false
@@ -13,14 +13,10 @@ class CreateUserBlocks < ActiveRecord::Migration
       t.timestamps
     end
 
-    add_foreign_key :user_blocks, [:user_id], :users, [:id]
-    add_foreign_key :user_blocks, [:moderator_id], :users, [:id]
-    add_foreign_key :user_blocks, [:revoker_id], :users, [:id]
+    add_foreign_key :user_blocks, :users, :name => "user_blocks_user_id_fkey"
+    add_foreign_key :user_blocks, :users, :column => :moderator_id, :name => "user_blocks_moderator_id_fkey"
+    add_foreign_key :user_blocks, :users, :column => :revoker_id, :name => "user_blocks_revoker_id_fkey"
 
     add_index :user_blocks, [:user_id]
   end
-
-  def self.down
-    drop_table :user_blocks
-  end
 end
diff --git a/db/migrate/046_alter_user_roles_and_blocks.rb b/db/migrate/046_alter_user_roles_and_blocks.rb
index 9799e4e5e..864f0db5d 100644
--- a/db/migrate/046_alter_user_roles_and_blocks.rb
+++ b/db/migrate/046_alter_user_roles_and_blocks.rb
@@ -8,7 +8,7 @@ class AlterUserRolesAndBlocks < ActiveRecord::Migration
     add_column :user_roles, :granter_id, :bigint
     UserRole.update_all("granter_id = user_id")
     change_column :user_roles, :granter_id, :bigint, :null => false
-    add_foreign_key :user_roles, [:granter_id], :users, [:id]
+    add_foreign_key :user_roles, :users, :column => :granter_id, :name => "user_roles_granter_id_fkey"
 
     # make sure that [user_id, role] is unique
     add_index :user_roles, [:user_id, :role], :name => "user_roles_id_role_unique", :unique => true
@@ -21,9 +21,9 @@ class AlterUserRolesAndBlocks < ActiveRecord::Migration
   end
 
   def self.down
-    remove_column :user_roles, :granter_id
-    remove_index :user_roles, :name => "user_roles_id_role_unique"
-    rename_column :user_blocks, :creator_id, :moderator_id
     rename_column :user_blocks, :ends_at, :end_at
+    rename_column :user_blocks, :creator_id, :moderator_id
+    remove_index :user_roles, :name => "user_roles_id_role_unique"
+    remove_column :user_roles, :granter_id
   end
 end
diff --git a/db/migrate/054_refactor_map_bug_tables.rb b/db/migrate/054_refactor_map_bug_tables.rb
index d94105035..d3839aaa8 100644
--- a/db/migrate/054_refactor_map_bug_tables.rb
+++ b/db/migrate/054_refactor_map_bug_tables.rb
@@ -18,13 +18,13 @@ class RefactorMapBugTables < ActiveRecord::Migration
 
     add_index :map_bug_comment, [:bug_id], :name => "map_bug_comment_id_idx"
 
-    add_foreign_key :map_bug_comment, [:bug_id], :map_bugs, [:id]
-    add_foreign_key :map_bug_comment, [:commenter_id], :users, [:id]
+    add_foreign_key :map_bug_comment, :map_bugs, :column => :bug_id, :name => "note_comments_note_id_fkey"
+    add_foreign_key :map_bug_comment, :users, :column => :commenter_id, :name => "note_comments_author_id_fkey"
   end
 
   def self.down
-    remove_foreign_key :map_bug_comment, [:commenter_id]
-    remove_foreign_key :map_bug_comment, [:bug_id]
+    remove_foreign_key :map_bug_comment, :users, :column => :commenter_id, :name => "note_comments_author_id_fkey"
+    remove_foreign_key :map_bug_comment, :map_bugs, :column => :bug_id, :name => "note_comments_note_id_fkey"
 
     remove_index :map_bugs, :name => "map_bug_comment_id_idx"
 
diff --git a/db/migrate/20110521142405_rename_bugs_to_notes.rb b/db/migrate/20110521142405_rename_bugs_to_notes.rb
index 2934b73fd..5b9933e04 100644
--- a/db/migrate/20110521142405_rename_bugs_to_notes.rb
+++ b/db/migrate/20110521142405_rename_bugs_to_notes.rb
@@ -6,43 +6,23 @@ class RenameBugsToNotes < ActiveRecord::Migration
     rename_enumeration "map_bug_event_enum", "note_event_enum"
 
     rename_table :map_bugs, :notes
-    rename_index :notes, "map_bugs_pkey", "notes_pkey"
     rename_index :notes, "map_bugs_changed_idx", "notes_updated_at_idx"
     rename_index :notes, "map_bugs_created_idx", "notes_created_at_idx"
     rename_index :notes, "map_bugs_tile_idx", "notes_tile_status_idx"
 
-    remove_foreign_key :map_bug_comment, [:bug_id], :map_bugs, [:id]
-    rename_column :map_bug_comment, :author_id, :commenter_id
-    remove_foreign_key :map_bug_comment, [:commenter_id], :users, [:id]
-    rename_column :map_bug_comment, :commenter_id, :author_id
-
     rename_table :map_bug_comment, :note_comments
     rename_column :note_comments, :bug_id, :note_id
-    rename_index :note_comments, "map_bug_comment_pkey", "note_comments_pkey"
     rename_index :note_comments, "map_bug_comment_id_idx", "note_comments_note_id_idx"
-
-    add_foreign_key :note_comments, [:note_id], :notes, [:id]
-    add_foreign_key :note_comments, [:author_id], :users, [:id]
   end
 
   def self.down
-    remove_foreign_key :note_comments, [:author_id], :users, [:id]
-    remove_foreign_key :note_comments, [:note_id], :notes, [:id]
-
     rename_index :note_comments, "note_comments_note_id_idx", "map_bug_comment_id_idx"
-    rename_index :notes, "note_comments_pkey", "map_bug_comment_pkey"
     rename_column :note_comments, :note_id, :bug_id
     rename_table :note_comments, :map_bug_comment
 
-    rename_column :map_bug_comment, :author_id, :commenter_id
-    add_foreign_key :map_bug_comment, [:commenter_id], :users, [:id]
-    rename_column :map_bug_comment, :commenter_id, :author_id
-    add_foreign_key :map_bug_comment, [:bug_id], :notes, [:id]
-
     rename_index :notes, "notes_tile_status_idx", "map_bugs_tile_idx"
     rename_index :notes, "notes_created_at_idx", "map_bugs_created_idx"
     rename_index :notes, "notes_updated_at_idx", "map_bugs_changed_idx"
-    rename_index :notes, "notes_pkey", "map_bugs_pkey"
     rename_table :notes, :map_bugs
 
     rename_enumeration "note_event_enum", "map_bug_event_enum"
diff --git a/db/migrate/20111212183945_add_lowercase_user_indexes.rb b/db/migrate/20111212183945_add_lowercase_user_indexes.rb
index 4142a642d..69e7ed299 100644
--- a/db/migrate/20111212183945_add_lowercase_user_indexes.rb
+++ b/db/migrate/20111212183945_add_lowercase_user_indexes.rb
@@ -2,8 +2,8 @@ require 'migrate'
 
 class AddLowercaseUserIndexes < ActiveRecord::Migration
   def up
-    add_index :users, :display_name, :lowercase => true, :name => "users_display_name_lower_idx"
-    add_index :users, :email, :lowercase => true, :name => "users_email_lower_idx"
+    add_index :users, [], :columns => "LOWER(display_name)", :name => "users_display_name_lower_idx"
+    add_index :users, [], :columns => "LOWER(email)", :name => "users_email_lower_idx"
   end
 
   def down
diff --git a/db/migrate/20120318201948_create_redactions.rb b/db/migrate/20120318201948_create_redactions.rb
index b6ee96037..15cc1e13b 100644
--- a/db/migrate/20120318201948_create_redactions.rb
+++ b/db/migrate/20120318201948_create_redactions.rb
@@ -1,7 +1,7 @@
 require 'migrate'
 
 class CreateRedactions < ActiveRecord::Migration
-  def up
+  def change
     create_table :redactions do |t|
       t.string :title
       t.text :description
@@ -11,16 +11,7 @@ class CreateRedactions < ActiveRecord::Migration
 
     [:nodes, :ways, :relations].each do |tbl|
       add_column tbl, :redaction_id, :integer, :null => true
-      add_foreign_key tbl, [:redaction_id], :redactions, [:id]
+      add_foreign_key tbl, :redactions, :name => "#{tbl}_redaction_id_fkey"
     end
   end
-
-  def down
-    [:nodes, :ways, :relations].each do |tbl|
-      remove_foreign_key tbl, [:redaction_id], :redactions, [:id]
-      remove_column tbl, :redaction_id
-    end
-
-    drop_table :redactions
-  end
 end
diff --git a/db/migrate/20120328090602_drop_session_table.rb b/db/migrate/20120328090602_drop_session_table.rb
index e5f9739a5..627db6d7c 100644
--- a/db/migrate/20120328090602_drop_session_table.rb
+++ b/db/migrate/20120328090602_drop_session_table.rb
@@ -6,7 +6,7 @@ class DropSessionTable < ActiveRecord::Migration
   end
 
   def down
-    create_table "sessions", :options => innodb_option do |t|
+    create_table "sessions" do |t|
       t.column "session_id", :string
       t.column "data",       :text
       t.column "created_at", :timestamp
diff --git a/db/migrate/20120404205604_add_user_and_description_to_redaction.rb b/db/migrate/20120404205604_add_user_and_description_to_redaction.rb
index 05c75d37e..0ca0be4a0 100644
--- a/db/migrate/20120404205604_add_user_and_description_to_redaction.rb
+++ b/db/migrate/20120404205604_add_user_and_description_to_redaction.rb
@@ -1,17 +1,10 @@
 require 'migrate'
 
 class AddUserAndDescriptionToRedaction < ActiveRecord::Migration
-  def up
+  def change
     add_column :redactions, :user_id, :bigint, :null => false
     add_column :redactions, :description_format, :format_enum, :null => false, :default => "markdown"
 
-    add_foreign_key :redactions, [:user_id], :users, [:id]
-  end
-
-  def down
-    remove_foreign_key :redactions, [:user_id], :users, [:id]
-
-    remove_column :redactions, :description_format
-    remove_column :redactions, :user_id
+    add_foreign_key :redactions, :users, :name => "redactions_user_id_fkey"
   end
 end
diff --git a/db/migrate/20140115192822_add_text_index_to_note_comments.rb b/db/migrate/20140115192822_add_text_index_to_note_comments.rb
index e43374595..e0d223060 100644
--- a/db/migrate/20140115192822_add_text_index_to_note_comments.rb
+++ b/db/migrate/20140115192822_add_text_index_to_note_comments.rb
@@ -2,7 +2,7 @@ require 'migrate'
 
 class AddTextIndexToNoteComments < ActiveRecord::Migration
   def up
-    add_index :note_comments, [], :columns => "to_tsvector('english', body)", :method => "GIN", :name => "index_note_comments_on_body"
+    add_index :note_comments, [], :columns => "to_tsvector('english', body)", :using => "GIN", :name => "index_note_comments_on_body"
   end
 
   def down
diff --git a/db/migrate/20140507110937_create_changeset_comments.rb b/db/migrate/20140507110937_create_changeset_comments.rb
index 8d2a4599d..cfc499535 100644
--- a/db/migrate/20140507110937_create_changeset_comments.rb
+++ b/db/migrate/20140507110937_create_changeset_comments.rb
@@ -10,8 +10,8 @@ class CreateChangesetComments < ActiveRecord::Migration
       t.boolean :visible, :null => false
     end
 
-    add_foreign_key :changeset_comments, [:changeset_id], :changesets, [:id]
-    add_foreign_key :changeset_comments, [:author_id], :users, [:id]
+    add_foreign_key :changeset_comments, :changesets, :name => "changeset_comments_changeset_id_fkey"
+    add_foreign_key :changeset_comments, :users, :column => :author_id, :name => "changeset_comments_author_id_fkey"
 
     add_index :changeset_comments, :created_at
   end
diff --git a/db/migrate/20140519141742_add_join_table_between_users_and_changesets.rb b/db/migrate/20140519141742_add_join_table_between_users_and_changesets.rb
index d07c6aae9..c23ed1f9f 100644
--- a/db/migrate/20140519141742_add_join_table_between_users_and_changesets.rb
+++ b/db/migrate/20140519141742_add_join_table_between_users_and_changesets.rb
@@ -7,8 +7,8 @@ class AddJoinTableBetweenUsersAndChangesets < ActiveRecord::Migration
       t.column :changeset_id, :bigint, null: false
     end
 
-    add_foreign_key :changesets_subscribers, [:subscriber_id], :users, [:id]
-    add_foreign_key :changesets_subscribers, [:changeset_id], :changesets, [:id]
+    add_foreign_key :changesets_subscribers, :users, :column => :subscriber_id, :name => "changesets_subscribers_subscriber_id_fkey"
+    add_foreign_key :changesets_subscribers, :changesets, :name => "changesets_subscribers_changeset_id_fkey"
 
     add_index :changesets_subscribers, [:subscriber_id, :changeset_id], :unique => true
     add_index :changesets_subscribers, [:changeset_id]
diff --git a/db/structure.sql b/db/structure.sql
index 343aec084..cfbd368fd 100644
--- a/db/structure.sql
+++ b/db/structure.sql
@@ -126,7 +126,7 @@ CREATE TYPE user_status_enum AS ENUM (
 
 CREATE FUNCTION maptile_for_point(bigint, bigint, integer) RETURNS integer
     LANGUAGE c STRICT
-    AS '/srv/www/overpass.osm.compton.nu/db/functions/libpgosm.so', 'maptile_for_point';
+    AS '/srv/www/master.osm.compton.nu/db/functions/libpgosm.so', 'maptile_for_point';
 
 
 --
@@ -135,7 +135,7 @@ CREATE FUNCTION maptile_for_point(bigint, bigint, integer) RETURNS integer
 
 CREATE FUNCTION tile_for_point(integer, integer) RETURNS bigint
     LANGUAGE c STRICT
-    AS '/srv/www/overpass.osm.compton.nu/db/functions/libpgosm.so', 'tile_for_point';
+    AS '/srv/www/master.osm.compton.nu/db/functions/libpgosm.so', 'tile_for_point';
 
 
 --
@@ -144,7 +144,7 @@ CREATE FUNCTION tile_for_point(integer, integer) RETURNS bigint
 
 CREATE FUNCTION xid_to_int4(xid) RETURNS integer
     LANGUAGE c IMMUTABLE STRICT
-    AS '/srv/www/overpass.osm.compton.nu/db/functions/libpgosm.so', 'xid_to_int4';
+    AS '/srv/www/master.osm.compton.nu/db/functions/libpgosm.so', 'xid_to_int4';
 
 
 SET default_tablespace = '';
@@ -158,9 +158,9 @@ SET default_with_oids = false;
 CREATE TABLE acls (
     id integer NOT NULL,
     address inet,
-    k character varying(255) NOT NULL,
-    v character varying(255),
-    domain character varying(255)
+    k character varying NOT NULL,
+    v character varying,
+    domain character varying
 );
 
 
@@ -222,8 +222,8 @@ ALTER SEQUENCE changeset_comments_id_seq OWNED BY changeset_comments.id;
 
 CREATE TABLE changeset_tags (
     changeset_id bigint NOT NULL,
-    k character varying(255) DEFAULT ''::character varying NOT NULL,
-    v character varying(255) DEFAULT ''::character varying NOT NULL
+    k character varying DEFAULT ''::character varying NOT NULL,
+    v character varying DEFAULT ''::character varying NOT NULL
 );
 
 
@@ -279,10 +279,10 @@ CREATE TABLE changesets_subscribers (
 
 CREATE TABLE client_applications (
     id integer NOT NULL,
-    name character varying(255),
-    url character varying(255),
-    support_url character varying(255),
-    callback_url character varying(255),
+    name character varying,
+    url character varying,
+    support_url character varying,
+    callback_url character varying,
     key character varying(50),
     secret character varying(50),
     user_id integer,
@@ -323,8 +323,8 @@ ALTER SEQUENCE client_applications_id_seq OWNED BY client_applications.id;
 
 CREATE TABLE current_node_tags (
     node_id bigint NOT NULL,
-    k character varying(255) DEFAULT ''::character varying NOT NULL,
-    v character varying(255) DEFAULT ''::character varying NOT NULL
+    k character varying DEFAULT ''::character varying NOT NULL,
+    v character varying DEFAULT ''::character varying NOT NULL
 );
 
 
@@ -371,7 +371,7 @@ CREATE TABLE current_relation_members (
     relation_id bigint NOT NULL,
     member_type nwr_enum NOT NULL,
     member_id bigint NOT NULL,
-    member_role character varying(255) NOT NULL,
+    member_role character varying NOT NULL,
     sequence_id integer DEFAULT 0 NOT NULL
 );
 
@@ -382,8 +382,8 @@ CREATE TABLE current_relation_members (
 
 CREATE TABLE current_relation_tags (
     relation_id bigint NOT NULL,
-    k character varying(255) DEFAULT ''::character varying NOT NULL,
-    v character varying(255) DEFAULT ''::character varying NOT NULL
+    k character varying DEFAULT ''::character varying NOT NULL,
+    v character varying DEFAULT ''::character varying NOT NULL
 );
 
 
@@ -436,8 +436,8 @@ CREATE TABLE current_way_nodes (
 
 CREATE TABLE current_way_tags (
     way_id bigint NOT NULL,
-    k character varying(255) DEFAULT ''::character varying NOT NULL,
-    v character varying(255) DEFAULT ''::character varying NOT NULL
+    k character varying DEFAULT ''::character varying NOT NULL,
+    v character varying DEFAULT ''::character varying NOT NULL
 );
 
 
@@ -515,13 +515,13 @@ ALTER SEQUENCE diary_comments_id_seq OWNED BY diary_comments.id;
 CREATE TABLE diary_entries (
     id bigint NOT NULL,
     user_id bigint NOT NULL,
-    title character varying(255) NOT NULL,
+    title character varying NOT NULL,
     body text NOT NULL,
     created_at timestamp without time zone NOT NULL,
     updated_at timestamp without time zone NOT NULL,
     latitude double precision,
     longitude double precision,
-    language_code character varying(255) DEFAULT 'en'::character varying NOT NULL,
+    language_code character varying DEFAULT 'en'::character varying NOT NULL,
     visible boolean DEFAULT true NOT NULL,
     body_format format_enum DEFAULT 'html'::format_enum NOT NULL
 );
@@ -597,7 +597,7 @@ CREATE TABLE gps_points (
 
 CREATE TABLE gpx_file_tags (
     gpx_id bigint DEFAULT 0 NOT NULL,
-    tag character varying(255) NOT NULL,
+    tag character varying NOT NULL,
     id bigint NOT NULL
 );
 
@@ -629,12 +629,12 @@ CREATE TABLE gpx_files (
     id bigint NOT NULL,
     user_id bigint NOT NULL,
     visible boolean DEFAULT true NOT NULL,
-    name character varying(255) DEFAULT ''::character varying NOT NULL,
+    name character varying DEFAULT ''::character varying NOT NULL,
     size bigint,
     latitude double precision,
     longitude double precision,
     "timestamp" timestamp without time zone NOT NULL,
-    description character varying(255) DEFAULT ''::character varying NOT NULL,
+    description character varying DEFAULT ''::character varying NOT NULL,
     inserted boolean NOT NULL,
     visibility gpx_visibility_enum DEFAULT 'public'::gpx_visibility_enum NOT NULL
 );
@@ -664,9 +664,9 @@ ALTER SEQUENCE gpx_files_id_seq OWNED BY gpx_files.id;
 --
 
 CREATE TABLE languages (
-    code character varying(255) NOT NULL,
-    english_name character varying(255) NOT NULL,
-    native_name character varying(255)
+    code character varying NOT NULL,
+    english_name character varying NOT NULL,
+    native_name character varying
 );
 
 
@@ -677,7 +677,7 @@ CREATE TABLE languages (
 CREATE TABLE messages (
     id bigint NOT NULL,
     from_user_id bigint NOT NULL,
-    title character varying(255) NOT NULL,
+    title character varying NOT NULL,
     body text NOT NULL,
     sent_on timestamp without time zone NOT NULL,
     message_read boolean DEFAULT false NOT NULL,
@@ -714,8 +714,8 @@ ALTER SEQUENCE messages_id_seq OWNED BY messages.id;
 CREATE TABLE node_tags (
     node_id bigint NOT NULL,
     version bigint NOT NULL,
-    k character varying(255) DEFAULT ''::character varying NOT NULL,
-    v character varying(255) DEFAULT ''::character varying NOT NULL
+    k character varying DEFAULT ''::character varying NOT NULL,
+    v character varying DEFAULT ''::character varying NOT NULL
 );
 
 
@@ -812,7 +812,7 @@ ALTER SEQUENCE notes_id_seq OWNED BY notes.id;
 
 CREATE TABLE oauth_nonces (
     id integer NOT NULL,
-    nonce character varying(255),
+    nonce character varying,
     "timestamp" integer,
     created_at timestamp without time zone,
     updated_at timestamp without time zone
@@ -859,9 +859,9 @@ CREATE TABLE oauth_tokens (
     allow_write_api boolean DEFAULT false NOT NULL,
     allow_read_gpx boolean DEFAULT false NOT NULL,
     allow_write_gpx boolean DEFAULT false NOT NULL,
-    callback_url character varying(255),
+    callback_url character varying,
     verifier character varying(20),
-    scope character varying(255),
+    scope character varying,
     valid_to timestamp without time zone,
     allow_write_notes boolean DEFAULT false NOT NULL
 );
@@ -892,7 +892,7 @@ ALTER SEQUENCE oauth_tokens_id_seq OWNED BY oauth_tokens.id;
 
 CREATE TABLE redactions (
     id integer NOT NULL,
-    title character varying(255),
+    title character varying,
     description text,
     created_at timestamp without time zone,
     updated_at timestamp without time zone,
@@ -928,7 +928,7 @@ CREATE TABLE relation_members (
     relation_id bigint DEFAULT 0 NOT NULL,
     member_type nwr_enum NOT NULL,
     member_id bigint NOT NULL,
-    member_role character varying(255) NOT NULL,
+    member_role character varying NOT NULL,
     version bigint DEFAULT 0 NOT NULL,
     sequence_id integer DEFAULT 0 NOT NULL
 );
@@ -940,8 +940,8 @@ CREATE TABLE relation_members (
 
 CREATE TABLE relation_tags (
     relation_id bigint DEFAULT 0 NOT NULL,
-    k character varying(255) DEFAULT ''::character varying NOT NULL,
-    v character varying(255) DEFAULT ''::character varying NOT NULL,
+    k character varying DEFAULT ''::character varying NOT NULL,
+    v character varying DEFAULT ''::character varying NOT NULL,
     version bigint NOT NULL
 );
 
@@ -965,7 +965,7 @@ CREATE TABLE relations (
 --
 
 CREATE TABLE schema_migrations (
-    version character varying(255) NOT NULL
+    version character varying NOT NULL
 );
 
 
@@ -1012,8 +1012,8 @@ ALTER SEQUENCE user_blocks_id_seq OWNED BY user_blocks.id;
 
 CREATE TABLE user_preferences (
     user_id bigint NOT NULL,
-    k character varying(255) NOT NULL,
-    v character varying(255) NOT NULL
+    k character varying NOT NULL,
+    v character varying NOT NULL
 );
 
 
@@ -1024,9 +1024,9 @@ CREATE TABLE user_preferences (
 CREATE TABLE user_roles (
     id integer NOT NULL,
     user_id bigint NOT NULL,
+    role user_role_enum NOT NULL,
     created_at timestamp without time zone,
     updated_at timestamp without time zone,
-    role user_role_enum NOT NULL,
     granter_id bigint NOT NULL
 );
 
@@ -1057,7 +1057,7 @@ ALTER SEQUENCE user_roles_id_seq OWNED BY user_roles.id;
 CREATE TABLE user_tokens (
     id bigint NOT NULL,
     user_id bigint NOT NULL,
-    token character varying(255) NOT NULL,
+    token character varying NOT NULL,
     expiry timestamp without time zone NOT NULL,
     referer text
 );
@@ -1087,36 +1087,36 @@ ALTER SEQUENCE user_tokens_id_seq OWNED BY user_tokens.id;
 --
 
 CREATE TABLE users (
-    email character varying(255) NOT NULL,
+    email character varying NOT NULL,
     id bigint NOT NULL,
-    pass_crypt character varying(255) NOT NULL,
+    pass_crypt character varying NOT NULL,
     creation_time timestamp without time zone NOT NULL,
-    display_name character varying(255) DEFAULT ''::character varying NOT NULL,
+    display_name character varying DEFAULT ''::character varying NOT NULL,
     data_public boolean DEFAULT false NOT NULL,
     description text DEFAULT ''::text NOT NULL,
     home_lat double precision,
     home_lon double precision,
     home_zoom smallint DEFAULT 3,
     nearby integer DEFAULT 50,
-    pass_salt character varying(255),
+    pass_salt character varying,
     image_file_name text,
     email_valid boolean DEFAULT false NOT NULL,
-    new_email character varying(255),
-    creation_ip character varying(255),
-    languages character varying(255),
+    new_email character varying,
+    creation_ip character varying,
+    languages character varying,
     status user_status_enum DEFAULT 'pending'::user_status_enum NOT NULL,
     terms_agreed timestamp without time zone,
     consider_pd boolean DEFAULT false NOT NULL,
-    openid_url character varying(255),
-    preferred_editor character varying(255),
+    openid_url character varying,
+    preferred_editor character varying,
     terms_seen boolean DEFAULT false NOT NULL,
     description_format format_enum DEFAULT 'html'::format_enum NOT NULL,
-    image_fingerprint character varying(255),
+    image_fingerprint character varying,
     changesets_count integer DEFAULT 0 NOT NULL,
     traces_count integer DEFAULT 0 NOT NULL,
     diary_entries_count integer DEFAULT 0 NOT NULL,
     image_use_gravatar boolean DEFAULT true NOT NULL,
-    image_content_type character varying(255)
+    image_content_type character varying
 );
 
 
@@ -1157,8 +1157,8 @@ CREATE TABLE way_nodes (
 
 CREATE TABLE way_tags (
     way_id bigint DEFAULT 0 NOT NULL,
-    k character varying(255) NOT NULL,
-    v character varying(255) NOT NULL,
+    k character varying NOT NULL,
+    v character varying NOT NULL,
     version bigint NOT NULL
 );
 
diff --git a/lib/migrate.rb b/lib/migrate.rb
index 7f8d33693..681eba5b6 100644
--- a/lib/migrate.rb
+++ b/lib/migrate.rb
@@ -1,143 +1,49 @@
 module ActiveRecord
   module ConnectionAdapters
-    class PostgreSQLAdapter
-      class SchemaCreation
-        alias_method :old_add_column_options!, :add_column_options!
+    module SchemaStatements
+      def add_index_options_with_columns(table_name, column_name, options = {})
+        columns = options.delete(:columns)
+        index_name, index_type, index_columns, index_options, algorithm, using = add_index_options_without_columns(table_name, column_name, options)
+        [index_name, index_type, columns || index_columns, index_options, algorithm, using]
+      end
+
+      alias_method_chain :add_index_options, :columns
+    end
 
-        def add_column_options!(sql, options)
-          sql << " UNSIGNED" if options[:unsigned]
-          old_add_column_options!(sql, options)
-          sql << " #{options[:options]}"
+    module PostgreSQL
+      module Quoting
+        def quote_column_name_with_arrays(name)
+          Array(name).map { |n| quote_column_name_without_arrays(n) }.join(", ")
         end
+
+        alias_method_chain :quote_column_name, :arrays
       end
 
       module SchemaStatements
-        def quote_column_names(column_name)
-          Array(column_name).map { |e| quote_column_name(e) }.join(", ")
-        end
-
         def add_primary_key(table_name, column_name, options = {})
-          column_names = Array(column_name)
-          quoted_column_names = column_names.map { |e| quote_column_name(e) }.join(", ")
-          execute "ALTER TABLE #{table_name} ADD PRIMARY KEY (#{quoted_column_names})"
+          execute "ALTER TABLE #{quote_table_name(table_name)} ADD PRIMARY KEY (#{quote_column_name(column_name)})"
         end
 
         def remove_primary_key(table_name)
-          execute "ALTER TABLE #{table_name} DROP PRIMARY KEY"
+          execute "ALTER TABLE #{quote_table_name(table_name)} DROP PRIMARY KEY"
         end
 
-        def add_foreign_key(table_name, column_name, reftbl, refcol = nil)
-          execute "ALTER TABLE #{table_name} ADD " +
-            "FOREIGN KEY (#{quote_column_names(column_name)}) " +
-            "REFERENCES #{reftbl} (#{quote_column_names(refcol || column_name)})"
+        def alter_primary_key(table_name, new_columns)
+          execute "ALTER TABLE #{quote_table_name(table_name)} DROP CONSTRAINT #{quote_table_name(table_name + "_pkey")}"
+          execute "ALTER TABLE #{quote_table_name(table_name)} ADD PRIMARY KEY (#{quote_column_name(new_columns)})"
         end
 
-        def remove_foreign_key(table_name, column_name, reftbl, refcol = nil)
-          execute "ALTER TABLE #{table_name} DROP " +
-            "CONSTRAINT #{table_name}_#{column_name[0]}_fkey"
+        def create_enumeration(enumeration_name, values)
+          execute "CREATE TYPE #{enumeration_name} AS ENUM ('#{values.join '\',\''}')"
         end
 
-#        alias_method :old_options_include_default?, :options_include_default?
-#
-#        def options_include_default?(options)
-#          return false if options[:options] =~ /AUTO_INCREMENT/i
-#          return old_options_include_default?(options)
-#        end
-      end
-
-      alias_method :old_native_database_types, :native_database_types
-
-      def native_database_types
-        types = old_native_database_types
-        types[:double] = { :name => "double precision" }
-        types[:integer_pk] = { :name => "serial PRIMARY KEY" }
-        types[:bigint_pk] = { :name => "bigserial PRIMARY KEY" }
-        types[:bigint_pk_64] = { :name => "bigserial PRIMARY KEY" }
-        types[:bigint_auto_64] = { :name => "bigint" } #fixme: need autoincrement?
-        types[:bigint_auto_11] = { :name => "bigint" } #fixme: need autoincrement?
-        types[:bigint_auto_20] = { :name => "bigint" } #fixme: need autoincrement?
-        types[:four_byte_unsigned] = { :name => "bigint" } # meh
-        types[:inet] = { :name=> "inet" }
-
-        enumerations.each_key do |e|
-          types[e.to_sym]= { :name => e }
+        def drop_enumeration(enumeration_name)
+          execute "DROP TYPE #{enumeration_name}"
         end
 
-        types
-      end
-
-      def myisam_table
-        return { :id => false, :force => true, :options => ""}
-      end
-
-      def innodb_table
-        return { :id => false, :force => true, :options => ""}
-      end
-
-      def innodb_option
-        return ""
-      end
-
-      def change_engine (table_name, engine)
-      end
-
-      def add_fulltext_index (table_name, column)
-        execute "CREATE INDEX #{table_name}_#{column}_idx on #{table_name} (#{column})"
-      end
-
-      def enumerations
-        @enumerations ||= Hash.new
-      end
-
-      def create_enumeration(enumeration_name, values)
-        enumerations[enumeration_name] = values
-        execute "CREATE TYPE #{enumeration_name} AS ENUM ('#{values.join '\',\''}')"
-      end
-
-      def drop_enumeration(enumeration_name)
-        execute "DROP TYPE #{enumeration_name}"
-        enumerations.delete(enumeration_name)
-      end
-
-      def rename_enumeration(old_name, new_name)
-        execute "ALTER TYPE #{quote_table_name(old_name)} RENAME TO #{quote_table_name(new_name)}"
-      end
-
-      def alter_primary_key(table_name, new_columns)
-        execute "ALTER TABLE #{table_name} DROP CONSTRAINT #{table_name}_pkey"
-        execute "ALTER TABLE #{table_name} ADD PRIMARY KEY (#{new_columns.join(',')})"
-      end
-
-      def interval_constant(interval)
-        "'#{interval}'::interval"
-      end
-
-      def add_index(table_name, column_name, options = {})
-        column_names = Array(column_name)
-        index_name   = index_name(table_name, :column => column_names)
-
-        if Hash === options # legacy support, since this param was a string
-          index_type = options[:unique] ? "UNIQUE" : ""
-          index_name = options[:name] || index_name
-          index_method = options[:method] || "BTREE"
-        else
-          index_type = options
-        end
-
-        quoted_column_names = column_names.map { |e| quote_column_name(e) }
-        if Hash === options and options[:lowercase]
-          quoted_column_names = quoted_column_names.map { |e| "LOWER(#{e})" }
-        end
-        if Hash === options and options[:columns]
-          quoted_column_names = quoted_column_names + Array[options[:columns]]
+        def rename_enumeration(old_name, new_name)
+          execute "ALTER TYPE #{quote_table_name(old_name)} RENAME TO #{quote_table_name(new_name)}"
         end
-        quoted_column_names = quoted_column_names.join(", ")
-
-        execute "CREATE #{index_type} INDEX #{quote_column_name(index_name)} ON #{quote_table_name(table_name)} USING #{index_method} (#{quoted_column_names})"
-      end
-
-      def rename_index(table_name, old_name, new_name)
-        execute "ALTER INDEX #{quote_table_name(old_name)} RENAME TO #{quote_table_name(new_name)}"
       end
     end
   end
-- 
2.43.2