By default, the VACUUM command in Databricks prevents the deletion of files less than 7 days old to ensure no long-running operations are referencing them. If you're certain no operations (like insert, upsert, delete, or optimize) are being performed on the table, you can disable this safety check by setting spark.databricks.delta.retentionDurationCheck.enabled to false. Learn More: Safety check for VACUUM command in Databricks