A tripwire on the assumed business uniqueness key. After polis_upsert() has
reduced the data to one row per id, a well-formed dataset should also be
unique on its business key. Rows that violate this are surfaced to QA – and
left in the data – so a genuine reclassification is never silently dropped.
Usage
flag_ambiguous(data, key, id = "id", sink = NULL)
Arguments
- data
A data frame (already deduped by id).
- key
Character vector naming the business key columns.
- id
Name of the identifier column (default "id").
- sink
Optional destination for the flagged rows: a file path (CSV is
written) or NULL (flags are attached as the polis_ambiguous attribute).
Value
data, unchanged, possibly carrying a polis_ambiguous attribute.
