[Bug] Adding columns messes joins

HI,
I am able to reproduce the same . 

I have RIGHT JOIN in a transformation. 

1. Input B now has 3 additional fields which are added , the join still works as earlier 
2. Open Joiner and ADD the 3 new fields into joiner falls down from earlier (8000 to only 3) , I tried saving opening re-opening , reproducible
3. If I were to delete this join and recreate it back again , the number goes up to 8000 (as earlier)

www.loom.com/share/097d313e819c4814a4074...22-957b-85c6700da494

This was very frustrating 

Yes this is very annoying... 
we will have a look at it for you.

We could not reproduce the problem.

Please provide us with transformation and data files so we can test it in the office.

I have emailed at info@

I think I have found the issue.

When you add new field to joiner you have to update all inked objects.

Also we found a bug and fixed it.

Basically if you delete the field but forget to delete it from joiner it will lead to AV


 

Thanks for catching this bug.

I think Field Selector also require some tweaking or maybe we need a new mechanism if the number of fields are updated downstream. 

1. I made changes in transformers ,as recommended to ensure output to writer is fine.
2. When running transformation , it still fails saying Field Selector failed as number of fields have increased. 
3. Upon opening Field Selector I see no errors , all fields are already updated in Field Selector
4. I then proceeded to disconnect Field Selector , and suddenly transformation works again. 
5. I connect Field Selector again , and other downstream calculations work again. 

Cheers,
PM