Disruptive corruption of data during an update

[Using postgresql-8.4.8-0squeeze1 under GNU-linux/debian]


Hi all!

an entire table of my db has been corrupted as a consequence of this erroneous
update command:
--------
mydb=> update bibl set argomento='curatori', autore='DELLA VOLPE Galvano \
       (con due capitoli aggiunti e note di)  where n_prog=3285;
mydb'> ';

UPDATE 12845
mydb=>
--------

Having an adequate back-up I think I'll be able to recover the data, but
can someone explain what the hell happened?
I realized the single quote was missing after the closing parenthesis
and just wrote it plus a second semicolon ';' ....

Regards,
     ennio

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