diff --git a/db/migrate/20111011195702_share_anything.rb b/db/migrate/20111011195702_share_anything.rb
index f5f3bad19..262110e4c 100644
--- a/db/migrate/20111011195702_share_anything.rb
+++ b/db/migrate/20111011195702_share_anything.rb
@@ -2,65 +2,83 @@ class ShareAnything < ActiveRecord::Migration
   def self.up
     remove_foreign_key :aspect_visibilities, :posts
 
-    start_sql = "ALTER TABLE aspect_visibilities "
-    sql = []
+    if postgres?
+      execute "DROP INDEX index_aspect_visibilities_on_post_id_and_aspect_id"
+      execute "DROP INDEX index_aspect_visibilities_on_post_id"
+      execute "ALTER TABLE aspect_visibilities RENAME COLUMN post_id TO shareable_id"
+      execute "ALTER TABLE aspect_visibilities ADD COLUMN shareable_type VARCHAR(255) NOT NULL DEFAULT 'Post'"
+      execute "CREATE INDEX shareable_and_aspect_id ON aspect_visibilities ( shareable_id, shareable_type, aspect_id )"
+      execute "CREATE INDEX index_aspect_visibilities_on_shareable_id_and_shareable_type ON aspect_visibilities ( shareable_id, shareable_type )"
+    else
+      start_sql = "ALTER TABLE aspect_visibilities "
+      sql = []
 
-    #remove_index :aspect_visibilities, :post_id_and_aspect_id
-    sql << "DROP INDEX `index_aspect_visibilities_on_post_id_and_aspect_id`"
+      #remove_index :aspect_visibilities, :post_id_and_aspect_id
+      sql << "DROP INDEX `index_aspect_visibilities_on_post_id_and_aspect_id`"
 
-    #remove_index :aspect_visibilities, :post_id
-    sql << "DROP INDEX `index_aspect_visibilities_on_post_id`"
+      #remove_index :aspect_visibilities, :post_id
+      sql << "DROP INDEX `index_aspect_visibilities_on_post_id`"
 
 
 
-    # change_table :aspect_visibilities do |t|
+      # change_table :aspect_visibilities do |t|
 
-    #   t.rename :post_id, :shareable_id
-    #   t.string :shareable_type, :default => 'Post', :null => false
-    # end
+      #   t.rename :post_id, :shareable_id
+      #   t.string :shareable_type, :default => 'Post', :null => false
+      # end
 
-    sql << "CHANGE COLUMN post_id shareable_id int NOT NULL"
-    sql << "ADD shareable_type varchar(255) NOT NULL DEFAULT 'Post'"
+      sql << "CHANGE COLUMN post_id shareable_id int NOT NULL"
+      sql << "ADD shareable_type varchar(255) NOT NULL DEFAULT 'Post'"
 
 
-    # add_index :aspect_visibilities, [:shareable_id, :shareable_type, :aspect_id], :name => 'shareable_and_aspect_id'
-    # add_index :aspect_visibilities, [:shareable_id, :shareable_type]
+      # add_index :aspect_visibilities, [:shareable_id, :shareable_type, :aspect_id], :name => 'shareable_and_aspect_id'
+      # add_index :aspect_visibilities, [:shareable_id, :shareable_type]
 
-    sql << "add index `shareable_and_aspect_id` (`shareable_id`, `shareable_type`, `aspect_id`)"
-    sql << "add index `index_aspect_visibilities_on_shareable_id_and_shareable_type` (`shareable_id`, `shareable_type`)"
+      sql << "add index `shareable_and_aspect_id` (`shareable_id`, `shareable_type`, `aspect_id`)"
+      sql << "add index `index_aspect_visibilities_on_shareable_id_and_shareable_type` (`shareable_id`, `shareable_type`)"
 
 
-    execute(start_sql + sql.join(', ') + ';')
+      execute(start_sql + sql.join(', ') + ';')
+    end
 
 
 
     remove_foreign_key :post_visibilities, :posts
     rename_table :post_visibilities, :share_visibilities
 
-    start_sql = "ALTER TABLE share_visibilities "
-    sql = []
+    if postgres?
+      execute "DROP INDEX index_post_visibilities_on_contact_id_and_post_id"
+      execute "DROP INDEX index_post_visibilities_on_post_id_and_hidden_and_contact_id"
+      execute "ALTER TABLE share_visibilities RENAME COLUMN post_id TO shareable_id"
+      execute "ALTER TABLE share_visibilities ADD COLUMN shareable_type VARCHAR(60) NOT NULL DEFAULT 'Post'"
+      execute "CREATE INDEX shareable_and_contact_id ON share_visibilities ( shareable_id, shareable_type, contact_id )"
+      execute "CREATE INDEX shareable_and_hidden_and_contact_id ON share_visibilities ( shareable_id, shareable_type, hidden, contact_id )"
+    else
+      start_sql = "ALTER TABLE share_visibilities "
+      sql = []
 
-    #remove_index :post_visibilities, :contact_id_and_post_id
-    #remove_index :post_visibilities, :post_id_and_hidden_and_contact_id
+      #remove_index :post_visibilities, :contact_id_and_post_id
+      #remove_index :post_visibilities, :post_id_and_hidden_and_contact_id
 
-    sql << "DROP INDEX `index_post_visibilities_on_contact_id_and_post_id`"
-    sql << "DROP INDEX `index_post_visibilities_on_post_id_and_hidden_and_contact_id`"
+      sql << "DROP INDEX `index_post_visibilities_on_contact_id_and_post_id`"
+      sql << "DROP INDEX `index_post_visibilities_on_post_id_and_hidden_and_contact_id`"
 
-    #change_table :post_visibilities do |t|
-    #  t.rename :post_id, :shareable_id
-    #  t.string :shareable_type, :default => 'Post', :null => false
-    #end
+      #change_table :post_visibilities do |t|
+      #  t.rename :post_id, :shareable_id
+      #  t.string :shareable_type, :default => 'Post', :null => false
+      #end
 
-    sql << "CHANGE COLUMN post_id shareable_id int NOT NULL"
-    sql << "ADD shareable_type varchar(60) NOT NULL DEFAULT 'Post'"
+      sql << "CHANGE COLUMN post_id shareable_id int NOT NULL"
+      sql << "ADD shareable_type varchar(60) NOT NULL DEFAULT 'Post'"
 
-    #add_index :share_visibilities, [:shareable_id, :shareable_type, :contact_id], :name => 'shareable_and_contact_id'
-    #add_index :share_visibilities, [:shareable_id, :shareable_type, :hidden, :contact_id], :name => 'shareable_and_hidden_and_contact_id'
+      #add_index :share_visibilities, [:shareable_id, :shareable_type, :contact_id], :name => 'shareable_and_contact_id'
+      #add_index :share_visibilities, [:shareable_id, :shareable_type, :hidden, :contact_id], :name => 'shareable_and_hidden_and_contact_id'
 
-    sql << "add index `shareable_and_contact_id` (`shareable_id`, `shareable_type`, `contact_id`)"
-    sql << "add index `shareable_and_hidden_and_contact_id` (`shareable_id`, `shareable_type`, `hidden`, `contact_id`)"
+      sql << "add index `shareable_and_contact_id` (`shareable_id`, `shareable_type`, `contact_id`)"
+      sql << "add index `shareable_and_hidden_and_contact_id` (`shareable_id`, `shareable_type`, `hidden`, `contact_id`)"
 
-    execute(start_sql + sql.join(', ') + ';')
+      execute(start_sql + sql.join(', ') + ';')
+    end
 
   end