ST_IsCollection()

Datum ST_IsCollection

(

PG_FUNCTION_ARGS

)

Definition at line 2108 of file lwgeom_functions_basic.c.

{
        GSERIALIZED *geom;
        int type;
        size_t size;
 
        /* Pull only a small amount of the tuple, enough to get the type. */
        /* header + srid/flags + bbox? + type number */
        size = VARHDRSZ + 8 + 32 + 4;
 
        geom = PG_GETARG_GSERIALIZED_P_SLICE(0, 0, size);
 
        type = gserialized_get_type(geom);
        PG_RETURN_BOOL(lwtype_is_collection(type));
}

References gserialized_get_type(), and lwtype_is_collection().

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