Thanks for your comments. I just gave him a sample value. On Fri, Apr 17, 2009 at 11:10 PM, Andrew Braithwaite < andrew.braithwa...@lovefilm.com> wrote:
> >> If you can not eliminate your temporary tables, you have to adjust > the > following parameters in my.cnf [mysqld] > >>max_heap_table_size=1G > >>tmp_table_size=1G > > You're making a lot of assumptions about this guy's setup. You > shouldn't just tell > him to apply these kinds of settings as you don't what effect they will > have on his > system. If he only has 512MB available for MySQL and he starts writing > lots of > 1GB temporary tables what's going to happen to the performance of his > server? > > With advice like that you could grind his server/s to a halt and cause > his site > To die a miserable swappy death. > > Andrew > > -----Original Message----- > From: Moon's Father [mailto:yueliangdao0...@gmail.com] > Sent: 17 April 2009 06:36 > To: Manoj Singh > Cc: php...@lists.php.net; mysql@lists.mysql.com > Subject: Re: Is Temporary table right approach > > If you can not eliminate your temporary tables, you have to adjust the > following parameters in my.cnf > [mysqld] > max_heap_table_size=1G > tmp_table_size=1G > > On Fri, Apr 17, 2009 at 12:57 PM, Manoj Singh > <manojsingh2...@gmail.com>wrote: > > > Hi All, > > > > Thanks for your valuable input. > > > > I have decided to use temporary table approach. Since I am using it > for the > > first time and this has to be done in the production server. Do I need > to > > consider some facts before using this such as setting some parameters > in > > my.cnf etc or the MYSQL will handle all. Actually I want to know if > any one > > has faces issues practically when implementing temporary tables. > > > > Waiting for your suggestion. > > > > Thanks, > > Manoj > > > > > > On Fri, Apr 17, 2009 at 8:21 AM, Moon's Father > <yueliangdao0...@gmail.com>wrote: > > > >> Use temporary table can be a good idea. But I think you performance > would > >> be boost so much if you can do something else to replace the > temporary > >> table. > >> On Wed, Apr 15, 2009 at 2:03 PM, Manoj Singh > <manojsingh2...@gmail.com>wrote: > >> > >>> Hi All, > >>> > >>> I have a query which returns the large number of ids which i am > using in > >>> other queries. I am doing this in PHP. Now the first query can > return > >>> unlimited number of ids which might create problem in PHP. I want to > >>> store > >>> this ids in MYSQL through temporary table so that i can access that > ids > >>> in > >>> other queries directly. > >>> > >>> Do you think the approach is right or there is any other good > approach? > >>> > >>> Please suggest. > >>> > >>> Regards, > >>> Manoj > >>> > >> > >> > >> > >> -- > >> I'm a MySQL DBA in china. > >> More about me just visit here: > >> http://yueliangdao0608.cublog.cn > >> > > > > > > > -- > I'm a MySQL DBA in china. > More about me just visit here: > http://yueliangdao0608.cublog.cn > -- David Yeung, MySQL Senior Support Engineer, Sun Gold Partner. My Blog:http://yueliangdao0608.cublog.cn Comanpy: http://www.actionsky.com
