Index: openacs-4/packages/xowiki/tcl/xowiki-sc-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/xowiki/tcl/xowiki-sc-procs.tcl,v
diff -u -N -r1.39 -r1.39.2.1
--- openacs-4/packages/xowiki/tcl/xowiki-sc-procs.tcl	27 Apr 2015 15:28:23 -0000	1.39
+++ openacs-4/packages/xowiki/tcl/xowiki-sc-procs.tcl	7 Dec 2015 14:26:25 -0000	1.39.2.1
@@ -70,7 +70,7 @@
   # solution, where syndication does not depend on search....
   #
   $page instvar item_id
-  catch {
+  if {[::xo::db::require exists_table txt]} {
     ::xo::dc dml delete_old_revisions {
       delete from txt where object_id in \
           (select revision_id from cr_revisions