LWGEOM_same()

Datum LWGEOM_same

(

PG_FUNCTION_ARGS

)

Definition at line 2021 of file lwgeom_functions_basic.c.

References FALSE, gserialized_get_type(), gserialized_get_zm(), lwgeom_free(), lwgeom_from_gserialized(), lwgeom_same(), PG_FUNCTION_INFO_V1(), and ST_MakeEnvelope().

Referenced by LWGEOM_ndims().

{
        GSERIALIZED *g1 = PG_GETARG_GSERIALIZED_P(0);
        GSERIALIZED *g2 = PG_GETARG_GSERIALIZED_P(1);
        LWGEOM *lwg1, *lwg2;
        bool result;

        if ( gserialized_get_type(g1) != gserialized_get_type(g2) )
        {
                PG_FREE_IF_COPY(g1, 0);
                PG_FREE_IF_COPY(g2, 1);
                PG_RETURN_BOOL(FALSE); /* different types */
        }

        if ( gserialized_get_zm(g1) != gserialized_get_zm(g2) )
        {
                PG_FREE_IF_COPY(g1, 0);
                PG_FREE_IF_COPY(g2, 1);
                PG_RETURN_BOOL(FALSE); /* different dimensions */
        }

        /* ok, deserialize. */
        lwg1 = lwgeom_from_gserialized(g1);
        lwg2 = lwgeom_from_gserialized(g2);

        /* invoke appropriate function */
        result = lwgeom_same(lwg1, lwg2);

        /* Relase memory */
        lwgeom_free(lwg1);
        lwgeom_free(lwg2);
        PG_FREE_IF_COPY(g1, 0);
        PG_FREE_IF_COPY(g2, 1);

        PG_RETURN_BOOL(result);
}

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