Maybe go to the source data? I was hoping to find an sqlite DB under the hood, but this is the closest I found to any package DB; and this doesn't look any worse than the zypper info output or the XML, https://github.com/openSUSE/zypper/blob/master/tests/data/openSUSE-11.1/suse/setup/descr/packages.gz - I couldn't find the descriptions and this might be very outdated; so, ymmv:

##----------------------------------------
=Pkg: perl-Net-DNS 0.62 4.1 i586
=Cks: SHA1 21e4716e48ea345bf53df78b55fdd6d147d8ebf2
+Req:
perl-Digest-HMAC
perl-Net-IP
perl = 5.10.0
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(VersionedDependencies) <= 3.0.3-1
libc.so.6
libc.so.6(GLIBC_2.1.3)
libc.so.6(GLIBC_2.4)
rpmlib(PayloadIsBzip2) <= 3.0.5-1
-Req:
+Prq:
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(VersionedDependencies) <= 3.0.3-1
rpmlib(PayloadIsBzip2) <= 3.0.5-1
-Prq:
+Prv:
perl_dns
DNS.so
perl(Net::DNS) = 0.62
perl(Net::DNS::Header) = 622
perl(Net::DNS::Nameserver) = 688
perl(Net::DNS::Packet) = 688
perl(Net::DNS::Question) = 690
perl(Net::DNS::RR) = 688
perl(Net::DNS::RR::A) = 546
perl(Net::DNS::RR::AAAA) = 388
perl(Net::DNS::RR::AFSDB) = 632
perl(Net::DNS::RR::CERT) = 388
perl(Net::DNS::RR::CNAME) = 632
perl(Net::DNS::RR::DNAME) = 388
perl(Net::DNS::RR::EID) = 388
perl(Net::DNS::RR::HINFO) = 639
perl(Net::DNS::RR::IPSECKEY) = 654
perl(Net::DNS::RR::ISDN) = 388
perl(Net::DNS::RR::LOC) = 388
perl(Net::DNS::RR::MB) = 632
perl(Net::DNS::RR::MG) = 632
perl(Net::DNS::RR::MINFO) = 632
perl(Net::DNS::RR::MR) = 632
perl(Net::DNS::RR::MX) = 632
perl(Net::DNS::RR::NAPTR) = 583
perl(Net::DNS::RR::NIMLOC) = 388
perl(Net::DNS::RR::NS) = 632
perl(Net::DNS::RR::NSAP) = 388
perl(Net::DNS::RR::NULL) = 388
perl(Net::DNS::RR::OPT) = 393
perl(Net::DNS::RR::PTR) = 632
perl(Net::DNS::RR::PX) = 632
perl(Net::DNS::RR::RP) = 632
perl(Net::DNS::RR::RT) = 632
perl(Net::DNS::RR::SOA) = 632
perl(Net::DNS::RR::SPF) = 684
perl(Net::DNS::RR::SRV) = 583
perl(Net::DNS::RR::SSHFP) = 626
perl(Net::DNS::RR::TKEY) = 388
perl(Net::DNS::RR::TSIG) = 388
perl(Net::DNS::RR::TXT) = 582
perl(Net::DNS::RR::Unknown) = 388
perl(Net::DNS::RR::X25) = 388
perl(Net::DNS::Resolver) = 614
perl(Net::DNS::Resolver::Base) = 698
perl(Net::DNS::Resolver::Cygwin) = 696
perl(Net::DNS::Resolver::Recurse) = 591
perl(Net::DNS::Resolver::UNIX) = 482
perl(Net::DNS::Resolver::Win32) = 588
perl(Net::DNS::Update) = 517
perl-Net-DNS = 0.62-4.1
-Prv:
+Obs:
perl_dns
-Obs:
=Grp: Development/Libraries/Perl
=Lic: Artistic License; GPL v2 or later
=Src: perl-Net-DNS 0.62 4.1 src
=Tim: 1202709958
=Loc: 1 perl-Net-DNS-0.62-4.1.i586.rpm
=Siz: 258592 576685
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