Size of TMP4 file before the Timestamp extract: 0 /tmp/tmp.jJXlzwQOJ4
First 10 records of TMP4
Size of TMP1 file: 0 /tmp/tmp.94MgJg7MTA

Processing complete:
✓ Valid JSON rows: 0 (saved to /tmp/tmp.Dwof7WpFpG)
✗ Invalid rows: 0 (saved to invalid_rows.txt)
Empty so no processing required