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st_xmax function

Applies to: check marked yes Databricks SQL check marked yes Databricks Runtime 17.1 and above

Important

This feature is in Public Preview. You can confirm preview enrollment on the Previews page. See Manage Azure Databricks previews.

Note

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

Returns the maximum X coordinate of the input GEOMETRY value, or NULL if the geometry is empty.

Syntax

st_xmax ( geoExpr )

Arguments

  • geoExpr: A GEOMETRY value.

Returns

A value of type DOUBLE, equal to the maximum X coordinate of the input GEOMETRY value.

The function returns NULL if the input is NULL or if the geometry is empty.

Examples

-- Returns the maximum X coordinate of a non-empty geometry.
> SELECT st_xmax(st_geomfromtext('LINESTRING(10 34,44 57,30 24)'));
  44.0
-- Returns `NULL` for an empty geometry.
> SELECT st_xmax(st_geomfromtext('POLYGON EMPTY'));
  NULL
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