Expand description
Handler for the reclassify-relation CLI subcommand (GAP-13).
Renames a relation type in the relationships table — either a single
directed edge (--source, --target, --from-relation) or every edge of
a given type in the namespace (--batch).
When the rename would produce a duplicate (source_id, target_id, relation)
triple, UPDATE OR IGNORE skips the conflicting row and the subsequent
DELETE removes it; the count of such skipped rows is reported as
merged_duplicates.