/usr/share/perl5/DBIx/DBSchema/ is in libdbix-dbschema-perl 0.39-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/perl5/DBIx/DBSchema/ColGroup/
/usr/share/perl5/DBIx/DBSchema/ColGroup.pm
/usr/share/perl5/DBIx/DBSchema/ColGroup/Index.pm
/usr/share/perl5/DBIx/DBSchema/ColGroup/Unique.pm
/usr/share/perl5/DBIx/DBSchema/Column.pm
/usr/share/perl5/DBIx/DBSchema/DBD/
/usr/share/perl5/DBIx/DBSchema/DBD.pm
/usr/share/perl5/DBIx/DBSchema/DBD/Oracle.pm
/usr/share/perl5/DBIx/DBSchema/DBD/Pg.pm
/usr/share/perl5/DBIx/DBSchema/DBD/SQLite.pm
/usr/share/perl5/DBIx/DBSchema/DBD/Sybase.pm
/usr/share/perl5/DBIx/DBSchema/DBD/mysql.pm
/usr/share/perl5/DBIx/DBSchema/Index.pm
/usr/share/perl5/DBIx/DBSchema/Table.pm
/usr/share/perl5/DBIx/DBSchema/_util.pm