LWGEOM_numgeometries_collection()

Datum LWGEOM_numgeometries_collection

(

PG_FUNCTION_ARGS

)

Definition at line 228 of file lwgeom_ogc.c.

References lwgeom_as_lwcollection(), lwgeom_free(), lwgeom_from_gserialized(), LWGEOM_geometryn_collection(), lwgeom_is_collection(), lwgeom_is_empty(), LWCOLLECTION::ngeoms, and PG_FUNCTION_INFO_V1().

Referenced by LWGEOM_numpoints_linestring().

{
        GSERIALIZED *geom = PG_GETARG_GSERIALIZED_P(0);
        LWGEOM *lwgeom;
        int32 ret = 1;

        lwgeom = lwgeom_from_gserialized(geom);
        if ( lwgeom_is_empty(lwgeom) )
        {
                ret = 0;
        }
        else if ( lwgeom_is_collection(lwgeom) )
        {
                LWCOLLECTION *col = lwgeom_as_lwcollection(lwgeom);
                ret = col->ngeoms;
        }
        lwgeom_free(lwgeom);
        PG_FREE_IF_COPY(geom, 0);
        PG_RETURN_INT32(ret);
}

Here is the call graph for this function:

Here is the caller graph for this function: