db/migrate/20150319082310_servers_change_timestamp_columns_to_decimal.rb
# change timestamp columns to support time with milliseconds (unix timestamp with milliseconds)
change timestamp columns to support time with milliseconds (unix timestamp with milliseconds)
change timestamp columns to support time with milliseconds ( unix timestamp with milliseconds )
def down
    Ping.delete_all
    change_column :servers, :last_ping_at, :datetime
    change_column :servers, :next_ping_at, :datetime
  end
def down Ping . delete_all change_column :servers , :last_ping_at , :datetime change_column :servers , :next_ping_at , :datetime end
change timestamp columns to support time with milliseconds (unix timestamp with milliseconds)
change timestamp columns to support time with milliseconds ( unix timestamp with milliseconds )