Release 10.1A: OpenEdge Development:
Progress 4GL Reference

ORIGIN-ROWID attribute

Returns the ROWID of the row in the original before-image table that corresponds to the row in the change table currently associated with this buffer handle.

Data type: ROWID

Access: Readable

Applies to: Buffer object handle

Progress uses this value to match up temp-table rows in a MERGE-CHANGES operation.