#173 Add flag used/unused column

[Marco Cellarosi]

The idea is to insert a new flag in interface that means used/unused columns.

In more project often happen that one columns become useless or deprecated, and when you study a logic of tables, can be difficult to understand or remember which column you have to considered and which no. Also not even you can delete that column because is not safe in that situation or for other reasons.
So i think would be useful to insert a flag that advise you if that column is obsolete, for example coloring the background in red or stuff like that.
I can do it if you think is a good idea.

[J.Guillaume (ioguix) de Rorthais]

Hello Marco,

Well, I am not convinced about this feature at all...

In my opinion, if a column become useless, obsolete or obscure, you have to consider consequences and drop it at some point. If you don't, it will definitly brings some problems at some point.
A database is accessible from many different way. This feature you want in PPA will not exists in pgAdmin or any other application as instance...

Moreover, consider documenting your schema using comments on columns. It is a good starting point to keep things clear for you and anyone that is working or will woek with your database schema :)