I'm using Ubuntu 10.10 and Lazarus, FPC from svn/trunk (today) and I got the MySQL51 database component to pickup the field returned during the Query.Open command.

http://bugs.freepascal.org/view.php?id=17661

I've traced into where FPC is looking for the field type and goes through the list of known types before assigning a field to the result. My database fields that I'm adding are FIELD_TYPE_LONGLONG (for Int64) so I would expect the resultant field in the datagram to be recognized as FIELD_TYPE_LONGLONG.

Now the problem is, the field is defined as the wrong type.