class ActiveRecord::ConnectionAdapters::MySQL::SchemaDumper

def prepare_column_options(column)
  spec = super
  spec[:unsigned] = "true" if column.unsigned?
  spec[:auto_increment] = "true" if column.auto_increment?
  if /\A(?<size>tiny|medium|long)(?:text|blob)/ =~ column.sql_type
    spec = { size: size.to_sym.inspect }.merge!(spec)
  end
  if @connection.supports_virtual_columns? && column.virtual?
    spec[:as] = extract_expression_for_virtual_column(column)
    spec[:stored] = "true" if /\b(?:STORED|PERSISTENT)\b/.match?(column.extra)
    spec = { type: schema_type(column).inspect }.merge!(spec)
  end
  spec
end