Geometry Types
Contents
Description
MariaDB provides a standard way of creating spatial columns for geometry types, for example, with CREATE TABLE or ALTER TABLE. Currently, spatial columns are supported for MyISAM, InnoDB and ARCHIVE tables. See also SPATIAL INDEX.
The basic geometry type is GEOMETRY
. But the type can be more specific. The following types are supported:
Geometry Types |
---|
POINT |
LINESTRING |
POLYGON |
MULTIPOINT |
MULTILINESTRING |
MULTIPOLYGON |
GEOMETRYCOLLECTION |
GEOMETRY |
Examples
Note: For clarity, only one type is listed per table in the examples below, but a table row can contain multiple types. For example:
CREATE TABLE object (shapeA POLYGON, shapeB LINESTRING);
POINT
CREATE TABLE gis_point (g POINT); SHOW FIELDS FROM gis_point; INSERT INTO gis_point VALUES (PointFromText('POINT(10 10)')), (PointFromText('POINT(20 10)')), (PointFromText('POINT(20 20)')), (PointFromWKB(AsWKB(PointFromText('POINT(10 20)'))));
LINESTRING
CREATE TABLE gis_line (g LINESTRING); SHOW FIELDS FROM gis_line; INSERT INTO gis_line VALUES (LineFromText('LINESTRING(0 0,0 10,10 0)')), (LineStringFromText('LINESTRING(10 10,20 10,20 20,10 20,10 10)')), (LineStringFromWKB(AsWKB(LineString(Point(10, 10), Point(40, 10)))));
POLYGON
CREATE TABLE gis_polygon (g POLYGON); SHOW FIELDS FROM gis_polygon; INSERT INTO gis_polygon VALUES (PolygonFromText('POLYGON((10 10,20 10,20 20,10 20,10 10))')), (PolyFromText('POLYGON((0 0,50 0,50 50,0 50,0 0), (10 10,20 10,20 20,10 20,10 10))')), (PolyFromWKB(AsWKB(Polygon(LineString(Point(0, 0), Point(30, 0), Point(30, 30), Point(0, 0))))));
MULTIPOINT
CREATE TABLE gis_multi_point (g MULTIPOINT); SHOW FIELDS FROM gis_multi_point; INSERT INTO gis_multi_point VALUES (MultiPointFromText('MULTIPOINT(0 0,10 10,10 20,20 20)')), (MPointFromText('MULTIPOINT(1 1,11 11,11 21,21 21)')), (MPointFromWKB(AsWKB(MultiPoint(Point(3, 6), Point(4, 10)))));
MULTILINESTRING
CREATE TABLE gis_multi_line (g MULTILINESTRING); SHOW FIELDS FROM gis_multi_line; INSERT INTO gis_multi_line VALUES (MultiLineStringFromText('MULTILINESTRING((10 48,10 21,10 0),(16 0,16 23,16 48))')), (MLineFromText('MULTILINESTRING((10 48,10 21,10 0))')), (MLineFromWKB(AsWKB(MultiLineString(LineString(Point(1, 2), Point(3, 5)), LineString(Point(2, 5), Point(5, 8), Point(21, 7))))));
MULTIPOLYGON
CREATE TABLE gis_multi_polygon (g MULTIPOLYGON); SHOW FIELDS FROM gis_multi_polygon; INSERT INTO gis_multi_polygon VALUES (MultiPolygonFromText('MULTIPOLYGON(((28 26,28 0,84 0,84 42,28 26),(52 18,66 23,73 9,48 6,52 18)),((59 18,67 18,67 13,59 13,59 18)))')), (MPolyFromText('MULTIPOLYGON(((28 26,28 0,84 0,84 42,28 26),(52 18,66 23,73 9,48 6,52 18)),((59 18,67 18,67 13,59 13,59 18)))')), (MPolyFromWKB(AsWKB(MultiPolygon(Polygon(LineString(Point(0, 3), Point(3, 3), Point(3, 0), Point(0, 3)))))));
GEOMETRYCOLLECTION
CREATE TABLE gis_geometrycollection (g GEOMETRYCOLLECTION); SHOW FIELDS FROM gis_geometrycollection; INSERT INTO gis_geometrycollection VALUES (GeomCollFromText('GEOMETRYCOLLECTION(POINT(0 0), LINESTRING(0 0,10 10))')), (GeometryFromWKB(AsWKB(GeometryCollection(Point(44, 6), LineString(Point(3, 6), Point(7, 9)))))), (GeomFromText('GeometryCollection()')), (GeomFromText('GeometryCollection EMPTY'));
GEOMETRY
CREATE TABLE gis_geometry (g GEOMETRY); SHOW FIELDS FROM gis_geometry; INSERT into gis_geometry SELECT * FROM gis_point; INSERT into gis_geometry SELECT * FROM gis_line; INSERT into gis_geometry SELECT * FROM gis_polygon; INSERT into gis_geometry SELECT * FROM gis_multi_point; INSERT into gis_geometry SELECT * FROM gis_multi_line; INSERT into gis_geometry SELECT * FROM gis_multi_polygon; INSERT into gis_geometry SELECT * FROM gis_geometrycollection;
Content reproduced on this site is the property of its respective owners,
and this content is not reviewed in advance by MariaDB. The views, information and opinions
expressed by this content do not necessarily represent those of MariaDB or any other party.