[refactor] Move cassandra implementation to internal package (#6639)
#3553
| Job | Run time |
|---|---|
| 5m 19s | |
| 6m 4s | |
| 11m 23s |
internal package (#6639)
#3553
| Job | Run time |
|---|---|
| 5m 19s | |
| 6m 4s | |
| 11m 23s |