From: Martijn Tonies Date: March 31 2005 10:53am Subject: Re: Index on boolean column List-Archive: http://lists.mysql.com/mysql/181964 Message-Id: <029e01c535df$ee76f640$3802a8c0@martijnws> MIME-Version: 1.0 Content-Type: text/plain; charset="ISO-8859-2" Content-Transfer-Encoding: 7bit > > I have to keep all transactions in one table for our reporting and futher > > analysing and if some other customers need exports I just can create batch > > sripts which will export their data for their own processing. > > > > Thank you for your help and time and also thanks others which responded to > > my question. > > The best thing you can do is creating a bunch of test data. Use the flag. > Test it. Next, try other ways. Test it. > > Measuring is knowing. And take a look at the query plans involved. btw, our tool "Database Workbench" has a neat "Test Data Generator" that can be used to create (semi) random data. Also, on our site: Advanced Data Generator (MySQL Editition). :-) With regards, Martijn Tonies Database Workbench - developer tool for InterBase, Firebird, MySQL & MS SQL Server Upscene Productions http://www.upscene.com