The sa_install_feature system procedure adds additional predefined units of measure not installed by default in a new database.
None.
CALL sa_install_feature('st_geometry_predefined_uom');
All additional units of measure are installed.
You can create a spatial reference system that uses the unit of measure.
You can find descriptions of these additional units of measure at www.epsg-registry.org/. On the web page, type the name of the unit of measure in the Name field, pick Unit of Measure (UOM) from the Type field, and then click Search.