---
name: "UR::DataSource::RDBMS::PkConstraintColumn"
section: "3pm"
platform: "linux"
package: "libur-perl"
version: "0.470+ds-3"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/UR::DataSource::RDBMS::PkConstraintColumn"
---

# UR::DataSource::RDBMS::PkConstraintColumn(3pm)

metadata about a data source's primary keys

## NAME

UR::DataSource::RDBMS::PkConstraintColumn - metadata about a data source's primary keys

## DESCRIPTION

This class represents columns that make up a primary key.  Tables with multiple-column primary keys are ordered by their 'rank' property.