======= initial time, creating plan. ======

xpsql=# select toXML(id) from xpath_eval('//base');

NOTICE:  There is no allocated plan. create new plan.
                                  toxml
-------------------------------------------------------------------------
 <base><d1></d1><d2 attname="11"><e1></e1><e2></e2></d2><d3></d3></base>
(1 row)

====== second time, reusing prepared plan. =====
 
xpsql=# select toXML(id) from xpath_eval('//base');

NOTICE:  Show counters of prepared plans below.
Selecting..2, Others..0
 
NOTICE:  Reuse already prepared plan.
NOTICE:  Show counters of prepared plans below.
Selecting..2, Others..0
 
NOTICE:  Reuse already prepared plan.
                                  toxml
-------------------------------------------------------------------------
 <base><d1></d1><d2 attname="11"><e1></e1><e2></e2></d2><d3></d3></base>
(1 row)
