mastodon-docker-playground/db/migrate/20171125190735_remove_old_r...

15 lines
419 B
Ruby

class RemoveOldReblogIndexOnStatuses < ActiveRecord::Migration[5.1]
disable_ddl_transaction!
def up
# This index may not exists (see migration 20171122120436)
remove_index :statuses, [:account_id, :reblog_of_id] if index_exists?(:statuses, [:account_id, :reblog_of_id])
remove_index :statuses, :reblog_of_id
end
def down
add_index :statuses, :reblog_of_id, algorithm: :concurrently
end
end