Blas,

> I don't work on the precision bug because I think we can't
> solve it without some modification in firebird API.

In theory you can calculate something. We have type (SMALL, INTEGER,
INT64) and we have scale. So, some estimation we can make. This is
the only thing I wanted to implement (or check if it is implemented).

> About the char column length if we know the maximum number of
> bytes for a character set, and which character set is used in a
> column we can calculate the column length.

This is what I'm going to implement.

Best regards,
Roman Rokytskyy