That is probably a bug.
Could you create a jira for it.
Two months have passed and there has been absolutely no activity around this severe bug.
We have to take the decision whether to go on with JBoss Tools BIRT Integration or find another solution.
I would like to avoid to create 50 reports and then be on a dead end.
Could you comment on the activity and future prospect of this part of JBoss Tools?
Very similar issue here, when I try to do a CSV export containing a field named "user_id".
It seems to that the field value is incorrectly considered by BIRT as an Integer even if is defined as a String.