Ref: Example use of Database Lab to check Geo query performance

I've modified step 2 to insert records for tables which do not have the verifications fields. Example:

exec INSERT INTO upload_states (
  upload_id, 
  verification_state, 
  verification_started_at,
  verification_retry_at, 
  verification_retry_count, 
  verification_checksum,
  verification_failure, 
  verified_at
)
SELECT 
  id,
  2,
  NOW(),
  Null,
  0,
  'abc',
  Null,
  NOW()
FROM uploads
LIMIT 5000

⬆️ inserts 5000 "succeeded" records. An offset could probably be used to insert a further 5000 "failed" records if needed 😊