Package: postgresql-12-debversion Source: postgresql-debversion Version: 1.2.0-1.pgdg20.04+1 Architecture: amd64 Maintainer: Debian PostgreSQL Maintainers Installed-Size: 67 Depends: postgresql-12, postgresql-12-jit-llvm (>= 10), libapt-pkg6.0 (>= 0.8.0), libc6 (>= 2.2.5) Homepage: https://salsa.debian.org/postgresql/postgresql-debversion Priority: optional Section: database Filename: pool/main/p/postgresql-debversion/postgresql-12-debversion_1.2.0-1.pgdg20.04+1_amd64.deb Size: 16596 SHA256: 3237118814bc2e4136bf993056f5bcb4d6bf1778a4b607737778667f6a17dac0 SHA1: a320915daa7e0f83eb4c50eae88f355f70da2f76 MD5sum: 75325db44d5a213b7861e3e200f2c72b 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()