placekey
CORE
Placekey is a free and open universal standard identifier for any physical place, so that the data pertaining to those places can be shared across organizations easily. Since Placekey is based on H3, here we offer a way to transform to and from that index and delegate any extra functionality to H3 itself.
You can learn more about Placekey on their website or in the Spatial Indexes section of this documentation.
PLACEKEY_ASH3(placekey)
Description
Returns the H3 index equivalent to the given placekey.
placekey
:VARCHAR
Placekey identifier.
Return type
VARCHAR
Example
1
SELECT carto.PLACEKEY_ASH3('@7dd-dc3-52k');
2
-- 8a390cbffffffff
PLACEKEY_FROMH3(h3index)
Description
Returns the Placekey equivalent to the given H3 index.
h3index
:VARCHAR
H3 identifier.
Return type
VARCHAR
Example
1
SELECT carto.PLACEKEY_FROMH3('84390cbffffffff');
2
-- @7dd-dc3-52k
PLACEKEY_ISVALID(placekey)
Description
Returns a boolean value
true
when the given string represents a valid Placekey, false
otherwise.placekey
:VARCHAR
Placekey identifier.
Return type
BOOLEAN
Examples
1
SELECT carto.PLACEKEY_ISVALID('@7dd-dc3-52k');
2
-- true
1
SELECT carto.PLACEKEY_ISVALID('7dd-dc3-52k');
2
-- true
1
SELECT carto.PLACEKEY_ISVALID('x');
2
-- false
Last modified 4mo ago