possible you had set up some query cache in 4, but not currently in 5?
may not be optimized, but yes, query cache is enabled, all 25 MB of it. :-)
how did you 'upgraded' your data?
regrettably, in-place. interestingly, I was recovering after server crash that chopped of a table. after upgrading the server (in-place), I re-read the corrupt table from script dumped by mysqlbinlog. it is THAT table that is causing me grief. I thought it was some missing indices, but I have indices on all columns I use in WHERE.
what means this exactly? in reverse ordered tables, query is fast on second or on first table order?
'select ... from table1, table2, table3 ... order by table1.column' is FAST 'select ... from table1, table2, table3 ... order by table2.column' is SLOW
did your tried an EXPLAIN?
yes, thanks for reminding me to use it. I compared the two; the slow one uses temporary table and filesort; the fast one does not. Both use where and all select types are SIMPLE. So, with your help, I know why it is slow. Is there a way to out of this without downgrading the server? -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
