Hello! Just in case: I use FB2.5

How many space use a null timestamp field in a database?

I'm asking this because I'm thinking in a design that may have about 10 timestamp fields, and in some cases, some of them may be null.

So I don't know if I should use fields, or change the model and use anothe table with one timestamp field and add a record for each event. The events NEVER can be more than 10.

Thanks!!!

-sergio