I am kind of surprised with a thing that i noticed while loading data via text addon. At first I thought it is a limit of the addon...but it turns out that GDL has a limit of digits. I needed to process INT numbers like 1000000000000 (needed for filtering some features of a product) and it seems that GDL can handle only 1000000000. I have never seen any info about it... So in case someone stepped on funny results of loading external data this limit can be a reason.
Exceeding 2000000000+ something will load the negatives. I tried to use the internal variables and do some modulo operations to bypass eventual limit, but the limit is also in the internal variables. It is not regarding INT numbers, but ANY numbers...
GDL only uses what's called "Long Int" (or sometimes referred to as "MAX32") – that's a signed 32 bit integer.
So "2'147'483'647" is the highest possible number, and going over that will cause an overflow. Numbers below "-2'147'483'648" will cause an underflow accordingly.
If you need integers bigger than that: You don't.
(However, the workaround is to use floats instead. They can go larger and will just experience a loss of precision; = the available "depth" of the decimal fraction shrinks. That will yield you numbers up until 2^53. Not too bad.)
