I jsut want to add the rows of a second table to the rows of the first table, keeping the column names of the first table and not consider what the names are of the second table (they are different).
Is that too complex to be solvable?
Same direction: Why is there no possibility to reset the column names to default? Row ID is there, but not column ID. How to do that?
You can use the extract column header node. One of the outputs is a mapping from basic column names to the original ones. the second one contains the original data tabel with the new basic column names.
If you apply those on both of your tables, than concatenate them and finally insert the column names from the first table you get your desired behavior.