Thanks Don,
but no (change), it return me this :
aiss=# select acs_sc_binding__exists_p('FtsContentProvider','::xowiki::Page');
acs_sc_binding__exists_p
1
(1 row)
and when we do : AcsSc.ftscontentprovider.datasource.xowiki_page 423800
it return the content the content of the page :
Denis