--- In firebird-support@yahoogroups.com, "robert_difalco"
<rdifalco@t...> wrote:

> Out of curiousity, why would you add a flag?
>

Mostly out of convention. What do you do if there is data both in the
varchar and BLOB field? Do other developers know which field is the
master. There is no requirement for it, but in SPs and triggers you
may be interested in the value, and it might make it easier to know
which one is which.

Adam