Added description, example, and SQL equivalents for equals and same_as GIS lookups.
@@ -279,6 +279,21 @@ SpatiaLite ``Disjoint(poly, geom)``
*Availability*: `PostGIS <https://postgis.net/docs/ST_Equals.html>`__,
Oracle, MySQL, SpatiaLite, PGRaster (Conversion)
+Tests if the geometry field is spatially equal to the lookup geometry.
+
+Example::
+
+ Zipcode.objects.filter(poly__equals=geom)
+
+========== =================================================
+Backend SQL Equivalent
+========== =================================================
+PostGIS ``ST_Equals(poly, geom)``
+Oracle ``SDO_EQUAL(poly, geom)``
+MySQL ``MBREquals(poly, geom)``
+SpatiaLite ``Equals(poly, geom)``
+========== =================================================
+
.. fieldlookup:: exact
.. fieldlookup:: same_as
@@ -288,6 +303,23 @@ Oracle, MySQL, SpatiaLite, PGRaster (Conversion)
*Availability*: `PostGIS <https://postgis.net/docs/ST_Geometry_Same.html>`__,
Oracle, MySQL, SpatiaLite, PGRaster (Bilateral)
+Tests if the geometry field is "equal" to the lookup geometry. On Oracle and
+SpatiaLite it tests spatial equality, while on MySQL and PostGIS it tests
+equality of bounding boxes.
+
+Example::
+
+ Zipcode.objects.filter(poly=geom)
+
+========== =================================================
+Backend SQL Equivalent
+========== =================================================
+PostGIS ``poly ~= geom``
+Oracle ``SDO_EQUAL(poly, geom)``
+MySQL ``MBREquals(poly, geom)``
+SpatiaLite ``Equals(poly, geom)``
+========== =================================================
+
.. fieldlookup:: intersects
``intersects``
