Zero-based index aligned with the input Keys array (the comparison column).
The composite key identifying this record (as supplied in the input).
A human-readable label for the record (name-field value when available, else the key).
Plain field-name → value map for this record (only the compared fields).
One record loaded for comparison. The
Keycorrelates this record back to the input column index;Valuesis a plain map of fieldName → value for that record.