developer is officially maintaining the package.
The rationale for changing this from "tech-pkg" to "pkgsrc-users" is
that it implies that any user can try to maintain the package (by
submitting patches to the mailing list). Since the folks most likely
to care about the package are the folks that want to use it or are
already using it, this would leverage the energy of users who aren't
developers.
and slightly modified by me.
IndexedCatalog is an extension to the Zope Object Database (ZODB) that
provides indexing and allows queries for objects based on attributes.
Which is accomplished by indexing all fields by type
(string/integer/float) and by a simple query language.