get_namespace_name(RelationGetNamespace(onerel)),
                             RelationGetRelationName(onerel),
                             vacrelstats->num_index_scans);
-           appendStringInfo(&buf, _("pages: %d removed, %d remain\n"),
+           appendStringInfo(&buf, _("pages: %u removed, %u remain\n"),
                             vacrelstats->pages_removed,
                             vacrelstats->rel_pages);
            if (vacrelstats->pinned_pages > 0)
            {
                if (scan_all)
-                   appendStringInfo(&buf, _("waited for %d buffer pins\n"),
+                   appendStringInfo(&buf, _("waited for %u buffer pins\n"),
                                     vacrelstats->pinned_pages);
                else
                    appendStringInfo(&buf,
-                                    _("skipped %d pages due to buffer pins\n"),
+                                    _("skipped %u pages due to buffer pins\n"),
                                     vacrelstats->pinned_pages);
            }
            appendStringInfo(&buf,
    if (vacrelstats->pinned_pages > 0)
    {
        if (scan_all)
-           appendStringInfo(&buf, _("Waited for %d buffer pins.\n"),
+           appendStringInfo(&buf, _("Waited for %u buffer pins.\n"),
                             vacrelstats->pinned_pages);
        else
            appendStringInfo(&buf, _("Skipped %u pages due to buffer pins.\n"),