Refs -- Updated support backends docs for isvalid lookup.
@@ -306,7 +306,8 @@ SpatiaLite ``Intersects(poly, geom)``
``isvalid``
-----------
-*Availability*: `PostGIS <https://postgis.net/docs/ST_IsValid.html>`__
+*Availability*: `PostGIS <https://postgis.net/docs/ST_IsValid.html>`__,
+Oracle, SpatiaLite
Tests if the geometry is valid.
@@ -314,9 +315,16 @@ Example::
Zipcode.objects.filter(poly__isvalid=True)
-PostGIS equivalent::
+=================== ================================================================
+Backend SQL Equivalent
+=================== ================================================================
+PostGIS, SpatiaLite ``ST_IsValid(poly)``
+Oracle ``SDO_GEOM.VALIDATE_GEOMETRY_WITH_CONTEXT(poly, 0.05) = 'TRUE'``
+=================== ================================================================
+
+.. versionchanged:: 1.11
- SELECT ... WHERE ST_IsValid(poly)
+ Oracle and SpatiaLite support was added.
.. fieldlookup:: overlaps
