Trying to export product system seems to export the entire database - version 2.6.0

Question

Hello everyone, 

I'm new in using OpenLCA, and I run into an export issue for which I didn't find a solution anywhere yet.

I'm using ecoinvent database, and I try to export specifically a Product systems entity in JSON-LD.

So, I right-click on my Product system entity > export > JSON-LD, and then I make sure that my product systems is selected, and that all the other entities are not selected (processes etc).
But when I click "Finish", it seems to export everything anyway: I end-up with a file that's 144 MB.

I searched a bit on the forum, I found the following thread but it dates back to a couple years ago and doesn't provide a solution:
https://ask.openlca.org/8301/export-and-import-of-a-product-system-or-a-process?show=8301#q8301 

Am I doing something wrong? Is it impossible to export just the product system entity (but then, what is the role of the menue where we check/uncheck what to export?)

Thanks in advance

Answer 1

Hi and welcome, this is as intendeded, the processes linked in a product system depend on the database, ecoinvent for example typically links "almost every" process of the database in every product system, but with a different contribution of course, depending on the product system and thus case. If you want you can test that not the entire database is exported: make a new process with a new product flow, add some elementary flows, and you will see that this is not part of the product system.