openstreetmap-website/db/migrate/049_improve_changeset_user_index.rb
2019-04-24 11:14:05 +01:00

11 lines
395 B
Ruby

class ImproveChangesetUserIndex < ActiveRecord::Migration[4.2]
def self.up
add_index :changesets, [:user_id, :id], :name => "changesets_user_id_id_idx"
remove_index :changesets, :name => "changesets_user_id_idx"
end
def self.down
add_index :changesets, [:user_id], :name => "changesets_user_id_idx"
remove_index :changesets, :name => "changesets_user_id_id_idx"
end
end