Unverified50% confidenceFactExact time
A deduplication key is the set of fields used at data ingestion or query time to determine whether two records 'belong to the same one', and it directly determines the database's UNIQUE constraints, the ETL merge logic, and the API's returned set.
1
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50%
Confidence
Long-term
Relevance
10/14/2026
First Seen
Sources
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