This change adds a NOT NULL constraint to the created_at column in the segment table. All occurrences of CreatedAt as a pointer are changed to non pointer version (metabase, segment loop, etc) Change-Id: I3efd476ebd1edd3327b69c9223d9edc800e1cc52
Method will delete all segments for given part. Change-Id: I11bdfdf30176749aee03cea0d1d2fa467f7cebea
Change-Id: Iaa607996478497d5c97c6a6973d099b315b3abf0