Redshift primary key constraints not enforced causing data duplication

Redshift does not enforce primary key constraints, allowing duplicate rows to be inserted into tables. This can corrupt analytical data and cause incorrect business metrics if not detected.

Set primary key constraints on tables even though Redshift doesn't enforce them. Implement monitoring tasks (e.g., SendDuplicatedKeysToDatadog) that run after data loads to detect and alert on duplicated rows based on primary key columns. This enables early detection before stakeholders consume corrupted data.