=head1 NAME

MySQL::Util::Lite::ColumnConstraint

=cut


=head1 ATTRIBUTES

=head2 REQUIRED

none

=cut


=head2 OPTIONAL

=head3 column_name

=cut

=head3 parent_column_name

=cut

=head3 parent_schema_name

=cut

=head3 parent_table_name

=cut

=head3 schema_name

=cut

=head3 table_name

=cut


=head1 METHODS

