Load log file errors

If the system identifies incorrect data during loading (either with the nzload command or the CREATE EXTERNAL TABLE command), it writes a message to the log file. There are two types of errors:
Malformed UTF-8
The message displays multiple pairs of hexadecimal digits that contain 1 - 4 bytes. The system encloses the incorrect bytes with square brackets and provides a clue as to why it was rejected.
Unassigned and unsupported characters
If the characters you attempted to load are unassigned in Unicode or unsupported by Netezza Performance Server, the system displays the error message as U + 4 or 5 digits.