Wrong stat on pg_stat_user_tables

Hi all,

I have strange behavior with a stat of pg_stat_user_tables (explained
below), where number of live tuples is not the real number at all. (25M
vs 111M)


  - select n_live_tup, last_autoanalyze from pg_stat_user_tables where
relname = 'items'

n_live_tup : 111 191 791
last_autoanalyze : 2016-09-27 04:03:35.09233+02


  - select count (1) from items;
   count
----------
  25307071


I've comparated my 10 biggest tables, only this table gave me wrong results.

Does anyone have an idea about it ?

Thanks

--

Thomas