28.3.37 The INFORMATION_SCHEMA ST_UNITS_OF_MEASURE Table

The ST_UNITS_OF_MEASURE table provides information about acceptable units for the ST_Distance() function.

The ST_UNITS_OF_MEASURE table has these columns:

• UNIT_NAME

  The name of the unit.

• UNIT_TYPE

  The unit type (for example, LINEAR).

• CONVERSION_FACTOR

  A conversion factor used for internal calculations.

• DESCRIPTION

  A description of the unit.