On a seperate issue -- I notice that you posted the same question 4 times ( the duplicates have been removed) ---- were you getting an Error page and resending ??
Like this .......
General Error
SQL ERROR [ mssql_odbc ]
[Microsoft][ODBC SQL Server Driver][SQL Server]The query processor ran out of internal resources and could not produce a query plan. This is a rare event and only expected for extremely complex queries or queries that reference a very large number of tables or partitions. Please simplify the query. If you believe you have received this message in error, contact Customer Support Services for more information. [37000]
SQL
UPDATE phpbb_notifications SET notification_read = 1 WHERE notification_time <= 1554551832 AND notification_type_id IN (1, 8, 9, 2) AND item_parent_id IN ('6264', '9432', '13189', '13288', '13809', '13848', '13917', '14057', '14108', '14158', '14292', '14345', '14639', '14725', '14738', '14779', '14827', '14851', '14852', '14881', '14926', '14951', '14962', '14963', '14964', '14967', '14969', '14972', '14973', '14976', '14984', '14985', '14988', '14993', '14994', '
My opinions are merely that .. opinions based on experience. Always seek professional advice.
IVA Completed 23rd July 2013 .... C.C. 10th January 2014