sde.st_multilinestring (wkt clob, srid integer)
sde.st_multipoint (wkt clob, srid integer)
sde.st_multipolygon (wkt clob, srid integer)

st_multilinestring (wkt, srid integer)
st_multilinestring (esri_shape bytea, srid integer)
st_multipoint (wkt, srid integer)
st_multipoint (esri_shape bytea, srid integer)
st_multipolygon (wkt, srid integer)
st_multipolygon (esri_shape bytea, srid integer)

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)
);

CREATE TABLE geomcoll_test (id integer, geometry st_geometry);

INSERT INTO geomcoll_test (id, geometry) VALUES (
1901,
st_multipoint ('multipoint (1 2, 4 3, 5 6)', 0)
);

INSERT INTO geomcoll_test (id, geometry) VALUES (
1902,
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,
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)
);

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)))

SELECT id, 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)))