Index: openacs-4/packages/tsearch2-driver/tcl/tsearch2-driver-procs.tcl
===================================================================
RCS file: /usr/local/cvsroot/openacs-4/packages/tsearch2-driver/tcl/tsearch2-driver-procs.tcl,v
diff -u -N -r1.30 -r1.31
--- openacs-4/packages/tsearch2-driver/tcl/tsearch2-driver-procs.tcl	27 Oct 2014 16:42:00 -0000	1.30
+++ openacs-4/packages/tsearch2-driver/tcl/tsearch2-driver-procs.tcl	27 Apr 2015 15:28:20 -0000	1.31
@@ -133,6 +133,10 @@
     # clean up query for tsearch2
     set query [tsearch2::build_query -query $query]
 
+    set where_clauses ""
+    set from_clauses ""
+    if {![info exists user_id]} {set user_id 0}
+
     # don't use bind vars since pg7.3 yacks for '1' (which is what comes out of bind vars)
     set limit_clause ""
     set offset_clause ""