{"id":"clm_96E744597CCF","entity":"databricks","predicate":"feature_added","value":"UNIQUE constraints","value_json":{"feed":"databricks-blog","item":"https://www.databricks.com/blog/declare-and-optimize-unique-constraints-databricks","tags":{"v":2,"ai":false,"by":"claude-haiku-5-5","on":"2026-11-05","themes":["developer_platform"]},"check":{"on":"2026-11-05","url":"https://www.databricks.com/blog/declare-and-optimize-unique-constraints-databricks","pages":1,"quote":"UNIQUE constraints, now available in Public Preview for Unity Catalog Delta tables in Databricks SQL and Databricks Runtime 18.2 and above, add a way to record the other uniqueness guarantees.","outcome":"checked"},"evidence":"Data teams often maintain uniqueness guarantees in their pipelines, but without a...","extracted_by":"claude-haiku-5-5","primary_source":true},"valid_from":"2026-11-03","valid_to":null,"published":"2026-11-03","recorded":"2026-11-05","confidence":0.7,"status":"valid","assertable":true,"superseded_by":null,"supersedes":[],"first_seen_at":"2026-11-05T00:11:54.506789+00:00","updated_at":"2026-11-05T00:32:39.099606+00:00","sources":[{"url":"https://www.databricks.com/blog/declare-and-optimize-unique-constraints-databricks","tier":"primary","publisher":"Databricks","published_at":"2026-11-03T00:00:00+00:00"}],"evidence":{"by":"page-read","on":"2026-11-05","quote":"UNIQUE constraints, now available in Public Preview for Unity Catalog Delta tables in Databricks SQL and Databricks Runtime 18.2 and above, add a way to record the other uniqueness guarantees.","url":"https://www.databricks.com/blog/declare-and-optimize-unique-constraints-databricks","excerpt":"Data teams often maintain uniqueness guarantees in their pipelines, but without a..."},"legend":{"dates":"valid_from: when the claim took effect (a period figure: the day its period closed). published: the earliest day a source on the record published it (a filing's filing date, a post's date; null when no source carries one). recorded: the day AsOf first held it. A figure can take effect weeks before it is published.","why_not":{},"checked_by":{"page-read":"its source page states the value and the date"}}}