What the use of 'slots' table in gnucash with mysql

[Jorge Zapata]

Hi, I'm developing a PHP web application and I want this app to read/write
into gnucash mysql database just like the program does. I have an idea what
is the goal of most of the tables but I simply don't what's the use of
slots table.
I activated a log in mysql server just to understand which insertions are
performed by gnucash in simple transactions and I've realized that every
insertion involves the slots table.
Can someone explain me what slots table does? If I don't want to consider
sots table in my application will that cause a problem when working with
the same database but using the program?

Thanks

-- 
*Ing. Jorge A. Zapata Guridi*
*Software Developer*