Unused fields in albums table?

[eolica]

I'm converting a postnuke block listing categories to list categories (with number of albums) in coppermine.

To show some infos the block looks in the various tables, and I'm using  last_addition to mark categories with new entries.

But it doesn't work.
Why?
Because last_addition is always 0000-00-00 00:00:00 :!:
While looking to the database I've seen that also pic_count is always 0.
A bug of the port? No. Looking to the database for the CPG 1.2 standalone I see that they are both kept at the default value also there.

General bug or reserved for future use?

[DJMaze]

A lot of fields are in database which are never used.

Since we took over the dev. of the Great Big Greg we also still don't have a clue.

But these fields are actualy not needed cos a query COUNT(*) does it already.
And the last picture always has the highest ID