i have a table like the image above with 500 rows.
i want to count the unique products in the WHOLE table not just the column or row.
the product is/can be repeated in any column and in any row.
One possible solution for your task could be this approach:
Use the column filter to extract one column from your table
Apply this to every column
Now use the Concatenate Node to create a list with the content of all columns. You can add multiple input ports in that node: Right click the node and select “Add Port”
Now you may apply a Duplicate-Row-Filter Node to get only the different entries.