I have entries in my slow query log for identical queries but, as you can see 
from the log entries below (including one irrelevant query), the number rows 
examined and returned varies. The tables are _not_ being updated.

The query cache is 'on demand', so I'm also not sure why the subsequent queries 
were not dealt with by the query cache.

Any ideas?

Thanks, James Harvard

# Time: 060103  9:45:12
# [EMAIL PROTECTED]: lasso[lasso] @ localhost [127.0.0.1]
# Query_time: 86  Lock_time: 0  Rows_sent: 12  Rows_examined: 6733255
select sql_cache dates.date_month from data_gb_e data inner join dates on 
data.date_id = dates.date_id and dates.date_year = 1998 group by 
dates.date_month order by dates.date_month;
# Time: 060103  9:45:46
# [EMAIL PROTECTED]: lasso[lasso] @ localhost [127.0.0.1]
# Query_time: 70  Lock_time: 0  Rows_sent: 7  Rows_examined: 3737912
select sql_cache dates.date_month from data_gb_e data inner join dates on 
data.date_id = dates.date_id and dates.date_year = 1998 group by 
dates.date_month order by dates.date_month;
# [EMAIL PROTECTED]: lasso[lasso] @ localhost [127.0.0.1]
# Query_time: 50  Lock_time: 0  Rows_sent: 4  Rows_examined: 1585713
select sql_cache dates.date_month from data_gb_e data inner join dates on 
data.date_id = dates.date_id and dates.date_year = 2000 group by 
dates.date_month order by dates.date_month;
# [EMAIL PROTECTED]: lasso[lasso] @ localhost [127.0.0.1]
# Query_time: 117  Lock_time: 0  Rows_sent: 9  Rows_examined: 5196480
select sql_cache dates.date_month from data_gb_e data inner join dates on 
data.date_id = dates.date_id and dates.date_year = 1998 group by 
dates.date_month order by dates.date_month;
# [EMAIL PROTECTED]: lasso[lasso] @ localhost [127.0.0.1]
# Query_time: 113  Lock_time: 0  Rows_sent: 9  Rows_examined: 5196063
select sql_cache dates.date_month from data_gb_e data inner join dates on 
data.date_id = dates.date_id and dates.date_year = 1998 group by 
dates.date_month order by dates.date_month;

-- 
MySQL General Mailing List
For list archives: http://lists.mysql.com/mysql
To unsubscribe:    http://lists.mysql.com/[EMAIL PROTECTED]

Reply via email to