st_ymin 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 the minimum Y coordinate of the input GEOMETRY value, or NULL if the geometry is empty.

Syntax

st_ymin ( geoExpr )

Arguments

• geoExpr: A GEOMETRY value.

Returns

A value of type DOUBLE, equal to the minimum Y coordinate of the input GEOMETRY value.

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

Examples

-- Returns the minimum Y coordinate of a non-empty geometry.
> SELECT st_ymin(st_geomfromtext('LINESTRING(10 34,44 57,30 24)'));
  24.0
-- Returns `NULL` for an empty geometry.
> SELECT st_ymin(st_geomfromtext('POLYGON EMPTY'));
  NULL

Related functions

• st_m function
• st_x function
• st_y function
• st_ymax function
• st_z function