After my server upgrade, I noticed a strange problem that arises only after publishing/updating posts. Every time, I get many errors of this kind :
Warning: mysql_affected_rows() [function.mysql-affected-rows]: A link to the server could not be established in /home/path_to_my_blog/wp-includes/wp-db.php on line 183
But, the publish/update action if actually executed ! So I tried to get in the [...]
