> Character 2106 in my query is '-' in slony's column name:
>
> update cm set id=57139,...,_slony-i_test_rowid=null where  auto_id =
> 57691;
>                                   ^
>                                   ^
>                              This is character 2106 in my query.]
>

It seems that '-' is an illegal char, try renaming your column.

Regards,

Niels Breet