ST_IsCollection()

Datum ST_IsCollection

(

PG_FUNCTION_ARGS

)

Definition at line 2085 of file lwgeom_functions_basic.c.

References dumpnode::geom, gserialized_get_type(), LWGEOM_makepoint(), lwtype_is_collection(), PG_FUNCTION_INFO_V1(), and ovdump::type.

Referenced by ST_MakeEnvelope().

{
        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));
}

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