ST_BUFFER()
This page is part of MariaDB's SkySQL Documentation.
The parent of this page is: Functions
Topics on this page:
Overview
Returns a geometry representing the points that are at the specified distance from the specified geometry.
See also: Functions in 10.6 ES, in 10.5 ES, and in 10.4 ES
EXAMPLES
SELECT SUBSTRING(ST_AsWKT(ST_BUFFER(Point(5, 5), 1)), 1, 72) AS `Buffer substring`;
+--------------------------------------------------------------------------+
| Buffer substring |
+--------------------------------------------------------------------------+
| POLYGON((5 4,4.950932325672582 4.001204543794827,4.901982859670439 4.004 |
+--------------------------------------------------------------------------+
SET @point = ST_GeomFromText('POINT(1 1)');
SELECT ST_AsText(ST_Buffer(@point, 0));
+---------------------------------+
| ST_AsText(ST_Buffer(@point, 0)) |
+---------------------------------+
| POINT(1 1) |
+---------------------------------+
SET @point = ST_GeomFromText('POINT(1 1)');
SELECT ST_AsText(ST_Buffer(@point, -1));
+----------------------------------+
| ST_AsText(ST_Buffer(@point, -1)) |
+----------------------------------+
| GEOMETRYCOLLECTION EMPTY |
+----------------------------------+
CHANGE HISTORY
Release Series | History |
---|---|
10.6 Enterprise |
|
10.5 Enterprise |
|
10.4 Enterprise |
|
EXTERNAL REFERENCES
Additional information on this topic may be found in the MariaDB Public Knowledge Base.
This page shows information specific to MariaDB SkySQL. Information for non-SkySQL use can be found on the ST_BUFFER() page in the MariaDB Enterprise Documentation.