Add a geometry index to project_nodes, and ensure various other combo…

…s are unique.

db/migrate/20130108165457_add_more_indexes.rb

@@ -0,0 +1,12 @@
+class AddMoreIndexes < ActiveRecord::Migration
+  def change
+    add_index :project_nodes, :geom, spatial: true
+    add_index :project_nodes, [:project_id, :osm_id], unique: true
+    add_index :project_way_nodes, [:project_id, :way_id, :sequence_id],
+        unique: true, name: "index_project_way_nodes_on_project_way_seq_ids"
+    add_index :project_ways, [:project_id, :osm_id], unique: true
+    add_index :project_relation_members, [:project_id, :relation_id, :sequence_id],
+        unique: true, name: "index_project_relation_members_on_project_rel_seq_ids"
+    add_index :project_relations, [:project_id, :osm_id], unique: true
+  end
+end

db/schema.rb

@@ -11,7 +11,7 @@
 #
 # It's strongly recommended to check this file into your version control system.
 
-ActiveRecord::Schema.define(:version => 20120620135238) do
+ActiveRecord::Schema.define(:version => 20130108165457) do
 
   create_table "admins", :force => true do |t|
     t.string   "email",                  :default => "", :null => false
@@ -57,7 +57,9 @@
     t.text     "status"
   end
 
+  add_index "project_nodes", ["geom"], :name => "index_project_nodes_on_geom", :spatial => true
   add_index "project_nodes", ["osm_id"], :name => "index_project_nodes_on_osm_id"
+  add_index "project_nodes", ["project_id", "osm_id"], :name => "index_project_nodes_on_project_id_and_osm_id", :unique => true
   add_index "project_nodes", ["project_id"], :name => "index_project_nodes_on_project_id"
 
   create_table "project_relation_members", :force => true do |t|
@@ -69,6 +71,8 @@
     t.integer "sequence_id",              :null => false
   end
 
+  add_index "project_relation_members", ["project_id", "relation_id", "sequence_id"], :name => "index_project_relation_members_on_project_rel_seq_ids", :unique => true
+
   create_table "project_relations", :force => true do |t|
     t.integer  "project_id",                :null => false
     t.integer  "osm_id",       :limit => 8, :null => false
@@ -81,6 +85,7 @@
   end
 
   add_index "project_relations", ["osm_id"], :name => "index_project_relations_on_osm_id"
+  add_index "project_relations", ["project_id", "osm_id"], :name => "index_project_relations_on_project_id_and_osm_id", :unique => true
   add_index "project_relations", ["project_id"], :name => "index_project_relations_on_project_id"
 
   create_table "project_users", :force => true do |t|
@@ -97,6 +102,7 @@
   end
 
   add_index "project_way_nodes", ["node_id"], :name => "index_project_way_nodes_on_node_id"
+  add_index "project_way_nodes", ["project_id", "way_id", "sequence_id"], :name => "index_project_way_nodes_on_project_way_seq_ids", :unique => true
   add_index "project_way_nodes", ["project_id"], :name => "index_project_way_nodes_on_project_id"
   add_index "project_way_nodes", ["way_id"], :name => "index_project_way_nodes_on_way_id"
 
@@ -112,6 +118,7 @@
   end
 
   add_index "project_ways", ["osm_id"], :name => "index_project_ways_on_osm_id"
+  add_index "project_ways", ["project_id", "osm_id"], :name => "index_project_ways_on_project_id_and_osm_id", :unique => true
   add_index "project_ways", ["project_id"], :name => "index_project_ways_on_project_id"
 
   create_table "projects", :force => true do |t|