... obsolete archive2 not present
... add column archive.ar_len
PHP Warning:  pg_query(): Query failed: ERROR:  "archive" is not a table in /srv/www/htdocs/mediawiki/includes/DatabasePostgres.php on line 478
A database error has occurred
Query: ALTER TABLE archive ADD ar_len INTEGER
Function: 
Error: 1 ERROR:  "archive" is not a table