LWGEOM_numgeometries_collection()

Datum LWGEOM_numgeometries_collection

(

PG_FUNCTION_ARGS

)

Definition at line 236 of file lwgeom_ogc.c.

{
        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);
}

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

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