How to configure new Joiner Node using flow variables for matching criteria

[takbb]

Hi @edphi , and welcome to the KNIME community forum. I didn’t see your message from 10 days ago, but I just spotted it whilst responding to a new and similar question. You are not alone!

see below

Configurable amount of join keys

Thanks for clarifying. I can certainly see why that change would be problematic! I admit I am not a fan of the non-array configuration of flow variables for such nodes as it makes it very difficult, if not impossible, to configure them programmatically, as you are demonstrating. The only thing I can suggest at the moment is searching the node repository for the deprecated version of the Joiner node, which is still available. (I think you may have to switch in Modern UI for this search to wor…