Subject Re: [firebird-support] Alter a procedure corrupts the database
Author Dmitry Yemanov
kokok_kokok wrote:

> I have a stored procedure without any return variable, then I alter
> the procedure adding an output variable. I do a backup without
> problems, but when I restore the database, I get
> "Invalid request BLR at offset 163. Output parameter mismatch for

Did you alter all the callers of this procedure?