This is really not a bug. It is only a feature. Besides trimming of trailing spaces, MySQL also perform case-insensitive match. ie. SELECT 'abc' = 'ABC'; will return true.
In order to turn off this feature, you should add the keyword 'binary'. Examples: SELECT binary 'abc' = 'ABC'; will return false. SELECT binary 'abc' = 'abc '; will also return false. Best regards, KH > In the last episode (Feb 21), Zhestkov Victor said: > > I have a table with varchar column and when I execute SELECT query like that: > > SELECT * FROM sometable WHERE somecolumn='abc '; it returns records which > > contain records with bo 'abc ' value, and which are only 'abc'. > > Thry this SELECT 'abc' = 'abc '; it returns true. I think it rather strange. > > I have mysql installed from Debian 3.0 r0. > > >From the docs: > > * All string columns, except `BLOB' and `TEXT' columns, automatically > have all trailing spaces removed when retrieved. For `CHAR' > types this is okay, and may be regarded as a feature according > to ANSI SQL92. The bug is that in MySQL Server, `VARCHAR' > columns are treated the same way. > > It's mentioned in 3 other places as well. > > -- > Dan Nelson > [EMAIL PROTECTED] > > --------------------------------------------------------------------- > 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 <mysql-unsubscribe- [EMAIL PROTECTED]> > Trouble unsubscribing? Try: http://lists.mysql.com/php/unsubscribe.php -- Yours, KH Chiu C&A Computer Consultants Ltd. Tel: 3104 2070 Fax: 3010 0896 Email: [EMAIL PROTECTED] Website: www.caconsultant.com --------------------------------------------------------------------- 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
