On Nov 9, 2007 5:33 PM, Tom Lane <[EMAIL PROTECTED]> wrote: > he's got no MCVs, presumably because the field > is unique.
It is. The ancestors field contains the current folder itself so the id of the folder (which is the primary key) is in it. -- Guillaume ---------------------------(end of broadcast)--------------------------- TIP 7: You can help support the PostgreSQL project by donating at http://www.postgresql.org/about/donate