Hi Greg,

A solution exist, and it is fast.
First you need to remove or close Candidate Index.

SELECT targetTable
* close or delete any index
INDEX ON uniqueExpression UNIQUE TAG TAG1
USE targetTable AGAIN ALIAS targetTableSearch IN 10000 ORDER 1
APPEND FROM textFile FOR !SEEK(uniqueExpression,100) OR RECNO()=RECNO(100)
USE IN 10000
* open index of targetTable
* REINDEX

Fabio