Returns the perimeter of the previous geometric object.
 

1 geo.perimeter

<geo.perimeter
    pg_dim='2|3'
    ora_tol='ora_tol'
    ora_unit='M|KM|CM|MM|MILE|NAUT_MILE|FOOT|INCH|SQ_KM...'
>
    <geometry_column /> *
</geo.perimeter>
Example
Copy
<select>
    <columns>
        <geo.perimeter ora_tol='0.005' pg_dim='3' ora_unit='3'>a.the_geom</geo.perimeter>
    </columns>
    <from table='buildings' alias='a' />
    <where>
        a.name = 'MACBA'
    </where>
</select>