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Source: postgresql-debversion
Section: database
Priority: optional
Maintainer: Debian PostgreSQL Maintainers <team+postgresql@tracker.debian.org>
Uploaders: Michael Banck <mbanck@debian.org>, Christoph Berg <myon@debian.org>
Build-Depends: debhelper-compat (= 13), libapt-pkg-dev, postgresql-all (>= 217~)
Standards-Version: 4.5.0
Rules-Requires-Root: no
Vcs-Browser: https://salsa.debian.org/postgresql/postgresql-debversion
Vcs-Git: https://salsa.debian.org/postgresql/postgresql-debversion.git
Package: postgresql-13-debversion
Architecture: any
Depends: ${misc:Depends}, ${shlibs:Depends}, postgresql-13
Description: Debian version number type for PostgreSQL
Debian version numbers, used to version Debian binary and source
packages, have a defined format, including specifications for how
versions should be compared in order to sort them. This package
implements a "debversion" type to represent Debian version numbers
within the PostgreSQL database. This also includes operators for
version comparison and index operator classes for creating indexes on
the debversion type.
.
Version comparison uses the algorithm used by the Debian package
manager, dpkg, using the implementation from libapt-pkg. This means
that columns in tables using the debversion type may be sorted and
compared correctly using the same logic as "dpkg --compare-versions".
It is also possible to create indexes on these columns.
.
postgresql-debversion implements the following features:
.
* The "debversion" type (internally derived from the "text" type)
* A full set of operators for version comparison (< <= = <> >= >)
including commutator and negator optimisation hints
* Operator classes for btree and hash indexes
* The aggregate functions min() and max()
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