> DB>I still have performance problem with my big MyISAM table. > DB>In fact, mysql keep locking my table, even for doing select :(
PDB> That's how MyISAM works -- it uses table locks for everything. PDB> Given that fact, if it didn't lock the table for reading, that would PDB> allow other clients to update the table at the same time -- leading PDB> to disastrous results. > DB>I don't know why but it's very very annoying. > DB>1% of my query are search ones. > DB>Theses queries are slow, too slow. I found my problem and why Mysql lock my table for a select. In fact, mysql sometimes don't use the right index and so does a 'Table sort' that lock my table. I modify the query to add USE INDEX clause and now, all seems to work well ... I just need to test during several days to be sure that's i'm right .. Thanks David --------------------------------------------------------------------- Before posting, please check: http://www.mysql.com/manual.php (the manual) http://lists.mysql.com/ (the list archive) To request this thread, e-mail <[EMAIL PROTECTED]> To unsubscribe, e-mail <[EMAIL PROTECTED]> Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php
