PostGIS  2.5.0dev-r@@SVN_REVISION@@
Datum ST_IsCollection ( PG_FUNCTION_ARGS  )

Definition at line 2089 of file lwgeom_functions_basic.c.

References dumpnode::geom, gserialized_get_type(), and lwtype_is_collection().

2090 {
2091  GSERIALIZED *geom;
2092  int type;
2093  size_t size;
2094 
2095  /* Pull only a small amount of the tuple, enough to get the type. */
2096  /* header + srid/flags + bbox? + type number */
2097  size = VARHDRSZ + 8 + 32 + 4;
2098 
2099  geom = PG_GETARG_GSERIALIZED_P_SLICE(0, 0, size);
2100 
2101  type = gserialized_get_type(geom);
2102  PG_RETURN_BOOL(lwtype_is_collection(type));
2103 }
uint32_t gserialized_get_type(const GSERIALIZED *s)
Extract the geometry type from the serialized form (it hides in the anonymous data area...
Definition: g_serialized.c:86
LWGEOM * geom
int lwtype_is_collection(uint8_t type)
Determine whether a type number is a collection or not.
Definition: lwgeom.c:1086

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