Hello
I want to create or add a unique key to a row after an transformer like a primary key in a database table just before updated my data. Did you know how to realize this operation ?
thanks
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The easiest way to do that would be a Counter, which simply counts each feature passing through and assigns it that value.
Ok. I understood this counter could create a sequence number. But, I think I misspoke , I can't to add this key on my row.
single key + data ==> single key | data
What is the correct design workflow to do this operation ?
You can then use an AttributeManager to add that unique key you just made to an existing attribute value.
how to call a sql function which calculates a field from the attribute manager?how to call a sql function which calculates a field from the attribute manager?Hi @jerome: If I understand your question, I don't think you necessarily need SQL. I think this video tutorial will help demonstrate how/where you can leverage existing fields/attributes to calculate another field/attribute. Hope this helps!