alter-table with mysql possible?

[stefanraabe]

I have a problem with alter-table it does not work. Everytime if i use that it will be ignored or callback only Failure. Is there any solution.
Background is for example to make the update process during development and work easier. I work Jboss 4.0.3 and MySQL 5.0. Thanks for answer.

* @jboss.persistence
* datasource = "java:jdbc/scm_data"
* datasource-mapping = "mySQL"
* create-table="false"
* alter-table="true"
* remove-table="true"

[stefanraabe]

I found the problem it was my brain. It is everything ok, but you have to set the correct rights.