YashanDB ST_MAKEENVELOPE函数

st_makeenvelope::= ST_MakeEnvelope "("xmin", "ymin", "xmax", "ymax"["srid"])"

SELECT st_astext(st_MakeEnvelope(1,2,3,4,4326), 0) geom FROM dual;

GEOM
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POLYGON ((1 2, 3 2, 3 4, 1 4, 1 2))

SELECT st_srid(st_MakeEnvelope(1,2,3,4,4326))  srid FROM dual;

SRID
------------
4326

SELECT st_srid(st_MakeEnvelope(1,2,3,4)) srid FROM dual;

SRID
------------
0

SELECT st_astext(st_MakeEnvelope(1,2,3,4,null), 0) geom FROM dual;

GEOM
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SELECT st_astext(st_MakeEnvelope(1,2,3,null), 0) geom FROM dual;

GEOM
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