Converts a geomgrid object to a binary structure as a bytea value.
Syntax
bytea ST_AsBinary(geomgrid grid)Parameters
| Parameter | Description |
|---|---|
grid | The geomgrid object to convert. |
Example
The following example generates a level-15 grid from a point geometry and converts it to binary.
WITH g AS (
SELECT unnest(ST_AsGridCode(
ST_GeomFromText('POINT(116.31522216796875 39.910277777777778)', 4490), 15)) AS grid
)
SELECT ST_AsBinary(grid) FROM g;Output:
st_asbinary
--------------------
\x01010c0f74271236