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st_reverse function

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

Preview

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nota

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

Reverses the input GEOGRAPHY or GEOMETRY value.

Syntax​

st_reverse ( geoExpr )

Arguments​

  • geoExpr: A GEOGRAPHY or GEOMETRY value.

Returns​

A value of type GEOGRAPHY or GEOMETRY, representing the reversed geospatial value.

The SRID value of the output GEOGRAPHY or GEOMETRY value is equal to that of the input value.

The dimension of the output GEOGRAPHY or GEOMETRY value is the same as that of the input value.

The function returns NULL if any of the inputs is NULL.

Examples​

SQL
-- Reverse a linestring geometry.
> SELECT st_astext(st_reverse(st_geomfromtext('LINESTRING(1 2,3 4,5 6)')));
  LINESTRING(5 6,3 4,1 2)
-- Reverse a multipoint geography.
> SELECT st_asewkt(st_reverse(st_geogfromtext('MULTIPOINT((1 2),EMPTY,(3 4),(5 6),EMPTY)')));
  SRID=4326;MULTIPOINT((1 2),EMPTY,(3 4),(5 6),EMPTY)
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