st_isvalid function

Applies to: Databricks SQL Databricks Runtime 17.1 and above

Important

This feature is in Public Preview.

Note

This feature is not available on Databricks SQL Classic warehouses. To learn more about Databricks SQL warehouses, see SQL warehouse types.

Returns true if the input GEOMETRY value is a valid geometry in the OGC sense.

Syntax

st_isvalid ( geoExpr )

Arguments

• geoExpr: A GEOMETRY value.

Returns

A value of type BOOLEAN, true if the input GEOMETRY value is a valid geometry in the OGC sense.

The function returns NULL if the input is NULL.

Examples

-- Returns false for invalid geometry with self-intersecting polygon.
> SELECT st_isvalid(st_geomfromtext('POLYGON((0 0,10 10,10 0,0 10,0 0))'));
  false
-- Returns true for valid geometry.
> SELECT st_isvalid(st_geomfromtext('POLYGON((0 0,10 0,0 10,0 0))'));
  true

Related functions

• st_isempty function
• st_geometrytype function