Fix lo_export usage in example programs.

lo_export returns -1, not zero, on failure.

diff --git a/src/test/examples/testlo.c b/src/test/examples/testlo.c
index 3fd97de995caa672891d18b97de2001d590bfa45..04539edd41764c8e90db01f50061df09816efa07 100644 (file)
--- a/src/test/examples/testlo.c
+++ b/src/test/examples/testlo.c
@@ -251,7 +251,7 @@ main(int argc, char **argv)
 
        printf("exporting large object to file \"%s\" ...\n", out_filename);
 /*     exportFile(conn, lobjOid, out_filename); */
-       if (!lo_export(conn, lobjOid, out_filename))
+       if (lo_export(conn, lobjOid, out_filename) < 0)
            fprintf(stderr, "%s\n", PQerrorMessage(conn));
    }