Geospatial functions¶

Geospatial functions operate on GEOGRAPHY and GEOMETRY and convert GEOGRAPHY and GEOMETRY values to and from other representations (such as VARCHAR).

Sub-category	Function	Notes
Conversion / Input / Parsing	ST_GEOGFROMGEOHASH	GEOGRAPHY only
	ST_GEOGPOINTFROMGEOHASH	GEOGRAPHY only
	ST_GEOGRAPHYFROMWKB	GEOGRAPHY only
	ST_GEOGRAPHYFROMWKT	GEOGRAPHY only
	ST_GEOMETRYFROMWKB	GEOMETRY only
	ST_GEOMETRYFROMWKT	GEOMETRY only
	ST_GEOMFROMGEOHASH	GEOMETRY only
	ST_GEOMPOINTFROMGEOHASH	GEOMETRY only
	TO_GEOGRAPHY	GEOGRAPHY only
	TO_GEOMETRY	GEOMETRY only
	TRY_TO_GEOGRAPHY	GEOGRAPHY only
	TRY_TO_GEOMETRY	GEOMETRY only
Conversion / Output / Formatting	ST_ASGEOJSON
	ST_ASWKB
	ST_ASBINARY	Alias for ST_ASWKB
	ST_ASEWKB
	ST_ASWKT
	ST_ASTEXT	Alias for ST_ASWKT
	ST_ASEWKT
	ST_GEOHASH
Constructor Functions	ST_MAKELINE
	ST_MAKEGEOMPOINT	GEOMETRY only
	ST_GEOMPOINT	Alias for ST_MAKEGEOMPOINT
	ST_MAKEPOINT	GEOGRAPHY only
	ST_POINT	Alias for ST_MAKEPOINT
	ST_MAKEPOLYGON
	ST_POLYGON	Alias for ST_MAKEPOLYGON
	ST_MAKEPOLYGONORIENTED	GEOGRAPHY only
Accessor Functions	ST_DIMENSION
	ST_ENDPOINT
	ST_POINTN
	ST_SRID
	ST_STARTPOINT
	ST_X
	ST_XMAX
	ST_XMIN
	ST_Y
	ST_YMAX
	ST_YMIN
Relationship and Measurement Functions	HAVERSINE
	ST_AREA
	ST_AZIMUTH
	ST_CONTAINS
	ST_COVEREDBY
	ST_COVERS
	ST_DISJOINT
	ST_DISTANCE
	ST_DWITHIN	GEOGRAPHY only
	ST_HAUSDORFFDISTANCE	GEOGRAPHY only
	ST_INTERSECTS
	ST_LENGTH
	ST_NPOINTS
	ST_NUMPOINTS	Alias for ST_NPOINTS
	ST_PERIMETER
	ST_WITHIN
Transformation Functions	ST_BUFFER	GEOMETRY only
	ST_CENTROID
	ST_COLLECT (Scalar and Aggregate)	GEOGRAPHY only
	ST_DIFFERENCE	GEOGRAPHY only
	ST_ENVELOPE	Deprecated for GEOGRAPHY
	ST_INTERPOLATE	GEOGRAPHY only
	ST_INTERSECTION	GEOGRAPHY only
	ST_INTERSECTION_AGG (Scalar and Aggregate)	GEOGRAPHY only
	ST_SETSRID	GEOMETRY only
	ST_SIMPLIFY
	ST_SYMDIFFERENCE	GEOGRAPHY only
	ST_TRANSFORM	GEOMETRY only
	ST_UNION	GEOGRAPHY only
	ST_UNION_AGG (Scalar and Aggregate)	GEOGRAPHY only
Utility Functions	ST_ISVALID
H3 Functions	H3_CELL_TO_BOUNDARY	GEOGRAPHY only
	H3_CELL_TO_CHILDREN	GEOGRAPHY only
	H3_CELL_TO_CHILDREN_STRING	GEOGRAPHY only
	H3_CELL_TO_PARENT	GEOGRAPHY only
	H3_CELL_TO_POINT	GEOGRAPHY only
	H3_COMPACT_CELLS	GEOGRAPHY only
	H3_COMPACT_CELLS_STRINGS	GEOGRAPHY only
	H3_COVERAGE	GEOGRAPHY only
	H3_COVERAGE_STRINGS	GEOGRAPHY only
	H3_GET_RESOLUTION	GEOGRAPHY only
	H3_GRID_DISTANCE	GEOGRAPHY only
	H3_GRID_DISK	GEOGRAPHY only
	H3_GRID_PATH	GEOGRAPHY only
	H3_INT_TO_STRING	GEOGRAPHY only
	H3_IS_PENTAGON	GEOGRAPHY only
	H3_IS_VALID_CELL	GEOGRAPHY only
	H3_LATLNG_TO_CELL	GEOGRAPHY only
	H3_LATLNG_TO_CELL_STRING	GEOGRAPHY only
	H3_POINT_TO_CELL	GEOGRAPHY only
	H3_POINT_TO_CELL_STRING	GEOGRAPHY only
	H3_POLYGON_TO_CELLS	GEOGRAPHY only
	H3_POLYGON_TO_CELLS_STRINGS	GEOGRAPHY only
	H3_STRING_TO_INT	GEOGRAPHY only
	H3_TRY_COVERAGE	GEOGRAPHY only
	H3_TRY_COVERAGE_STRINGS	GEOGRAPHY only
	H3_TRY_GRID_DISTANCE	GEOGRAPHY only
	H3_TRY_GRID_PATH	GEOGRAPHY only
	H3_TRY_POLYGON_TO_CELLS	GEOGRAPHY only
	H3_TRY_POLYGON_TO_CELLS_STRINGS	GEOGRAPHY only
	H3_UNCOMPACT_CELLS	GEOGRAPHY only
	H3_UNCOMPACT_CELLS_STRINGS	GEOGRAPHY only