table used by trigger with language dependency - trigger invalid
  on COMMIT

  Explanation:  There are one or more triggers  that  depend  upon
  this   object  with  a  language  semantics  dependency.   Those
  triggers will be  marked  invalid  and  need  to  be  recompiled
  through the language interface before reuse.

  User Action:  Review your database design,  and  understand  the
  implications  of  this data definition language operation.  Roll
  back the transaction if you do not want the trigger to be marked
  invalid.