These functions aren’t in the updated function reference yet. The details below come from the previous docs, and the product team is confirming them.
H3 Functions
H3_LATLNG_TO_CELL
Converts latitude/longitude into an H3 cell index (INT).
H3_LATLNG_TO_CELLADDRESS
Converts lat/lng into an H3 cell address (STRING).
H3_CELL_TO_PARENT
Gets the parent cell index for a given cell.
H3_CELLADDRESS_TO_PARENT
Gets the parent cell address for a given cell address.
H3_CELL_TO_CELLADDRESS
Converts an H3 numeric cell index to its alphanumeric cell address.
H3_CELLADDRESS_TO_CELL
Converts H3 cell address back to numeric index.
H3_CELL_TO_LATLNG
Returns the lat/lng center of a cell as an array [lat, lng].
H3_CELLADDRESS_TO_LATLNG
Returns the lat/lng center of a cell address.
H3_CELL_TO_BOUNDARY_AS_GEOJSON
Returns the cell boundary as a GeoJSON polygon.
H3_POINT_TO_CELL
Converts an ST_POINT geometry to an H3 index.
H3_POINT_TO_CELLADDRESS
Converts an ST_POINT geometry to an H3 cell address.
H3_POLYGON_TO_CELLS
Returns list of H3 cell indices covering a GeoJSON polygon.
H3_POLYGON_TO_CELLADDRESSES
Returns list of H3 cell addresses covering a GeoJSON polygon.
H3_GRID_DISK
Returns neighboring cells within hex distance k.
Bing Tile Functions
BING_TILE_AT
Returns the Bing tile ID at the given location and zoom level.
BING_TILE_QUADKEY
Converts a Bing tile ID to its QuadKey representation.
ST Functions
ST_POINT
Creates a GEOGRAPHY point (lng, lat).
ST_CONTAINS
Checks whether one geography fully contains another.
Last modified on October 15, 2026
