Hello all,

the following message is only interesting for people who uses the MySQL-CLI (the "mysql"-command on the command-line) or the "sql"-script. It doesn't matter if you use php, perl, phyton, java or other languages.

The problem is that the mysql-cli strips out comments by default (see bugreport [1]). That is bad for us, because it strips all SLOW_OK or LIMIT: too; so if you add a SLOW_OK at the mysql-cli it will stript out and the query-killer will kill it sooner. To prevent this, I changed the mysql-config in a way that comments will NOT be stripted yesterday [2] .

In the last hour a user told me, that this has a problematic side-effect: if you use /* foobar */ in a mysql-file OUTSIDE of a query, the file will fail; the user was angry because I changed the default without telling.

I still think that the mysql-default (to strip comments) is stupid (because in my eyes the user doesn't expect that comments he/she inserts will be removed).

So here is my plan: I will revert my changes for now (so the mysql-cli will strip comments again). And I hereby announce that I'm going to change the default at wednesday, the 31. August, in a way that comments will NOT the striped out.

You what that means for you: -If you don't use comments at the mysql-cli: nothing. -If you use comments at the mysql-cli: You have to add the following lines to ,your .my.cnf-file (you can find this hidden file in your home – please notice the "." at the start):

--snip-- [mysql] comments --snap--

-If you need the default of the mysql-cli after the 31. August, you have to add the following lines to your .my.cnf:

--snip-- [mysql] skip-comments --snap--

My revert will not affect the "sql"-script (our recommend way to uise myql on the command-line): It will still not strip the comments.

Please feel free to discuss this and ask for details on the mailinglist.

Sincerly, DaB.

[1] http://bugs.mysql.com/bug.php?id=26215 [2] https://jira.toolserver.org/browse/MNT-1072