Определение
ST_GeomCollection создает совокупность геометрии из формата WKT.
Синтаксис
Oracle
sde.st_multilinestring (wkt clob, srid integer) sde.st_multipoint (wkt clob, srid integer) sde.st_multipolygon (wkt clob, srid integer)
PostgreSQL
sde.st_multilinestring (wkt, srid integer) sde.st_multilinestring (esri_shape bytea, srid integer) sde.st_multipoint (wkt, srid integer) sde.st_multipoint (esri_shape bytea, srid integer) sde.st_multipolygon (wkt, srid integer) sde.st_multipolygon (esri_shape bytea, srid integer)
Тип возврата
ST_GeomCollection
Пример
Создайте таблицу geomcoll_test.
CREATE TABLE geomcoll_test (id integer, geometry sde.st_geometry);
INSERT INTO geomcoll_test (id, geometry) VALUES (
1901,
sde.st_multipoint ('multipoint (1 2, 4 3, 5 6)', 0)
);
INSERT INTO geomcoll_test (id, geometry) VALUES (
1902,
sde.st_multilinestring ('multilinestring ((33 2, 34 3, 35 6),
(28 4, 29 5, 31 8, 43 12), (39 3, 37 4, 36 7))', 0)
);
INSERT INTO geomcoll_test (id, geometry) VALUES (
1903,
sde.st_multipolygon ('multipolygon (((3 3, 4 6, 5 3, 3 3),
(8 24, 9 25, 1 28, 8 24), (13 33, 7 36, 1 40, 10 43, 13 33)))', 0)
);
Выберите совокупность геометрии в таблице geomcoll_test.
Oracle
SELECT id, sde.st_astext (geometry) Geomcollection
FROM GEOMCOLL_TEST;
ID GEOMCOLLECTION
1901 MULTIPOINT (1.00000000 2.00000000, 4.00000000 3.00000000,
5.00000000 6.00000000)
1902 MULTILINESTRING ((33.00000000 2.00000000, 34.00000000
3.00000000, 35.00000000 6.00000000),(28.00000000 4.00000000,
29.00000000 5.00000000, 31.00000000 8.00000000, 43.00000000
12.00000000),(39.00000000 3.00000000, 37.00000000
4.00000000, 36.00000000 7.00000000))
1903 MULTIPOLYGON (((13.00000000 33.00000000, 10.00000000
43.00000000, 1.00000000 40.00000000, 7.00000000 36.00000000,
13.00000000 33.00000000)),((8.00000000 24.00000000,
9.00000000 25.00000000, 1.00000000 28.00000000, 8.00000000
24.00000000)), ((3.00000000 3.00000000,5.00000000
3.00000000, 4.00000000 6.00000000,3.00000000 3.00000000)))
PostgreSQL
SELECT id, sde.st_astext (geometry)
AS geomcollection
FROM geomcoll_test;
id geomcollection
1901 MULTIPOINT (1 2, 4 3, 5 6)
1902 MULTILINESTRING ((33 2, 34 3, 35 6),(28 4,
29 5, 31 8, 43 12),(39 3, 37 4, 36 7))
1903 MULTIPOLYGON (((13 33, 10 43, 1 40, 7 36,
13 33)),((8 24, 9 25, 1 28, 8 24)), 3 3, 5 3, 4 6, 3 3)))