position.idvalues are given their own fields, pre-fixed with a number. This ensures each parent entity (a company in this example) is contained within a single Airtable record.
position.idvalues create new records, duplicating the parent entity into multiple records.
positions.idvalue is put into the same field, which might be more useful to us, depending on what we are doing with the data.
categoriesarrays are combined into one field as comma-separated strings:
,in, you might want to use the pipe
|symbol as the separator.