After upgrade to 2.0.6 the following occurs.
When a published post is edited then saved the following error message is displayed.
WordPress database error: [Lost connection to MySQL server during query]
INSERT INTO wpdb_postmeta (post_id,meta_key,meta_value) VALUES ('87','_pingme','1')
Warning: Cannot modify header information - headers already sent by (output started at /blogdirectory/wp-includes/wp-db.php:104) in /blogdirectory/wp-includes/pluggable-functions.php on line 270
This occurs no matter if the post is a new (post upgrade) post or a old (pre-upgrade) post. Posts can be created and saved as draft without the error, however when the status is changed to Published and the post saved the error occurs.
With the changes I have tested the change appears to stick in the database regardless of the error (example: Change the ping status of the post and save, the error occurs, however when going back to the post through the wp-admin interface the ping status is changed as requested.)
Any thoughts? To date I have reinstalled the wp code by a full delete of all folders except wp-content and wp-config.php and reinstalled to guard against any ftp upload corruption.
Thanks in advance for any ideas on a next step.