[refactor] Move cassandra implementation to internal package (#6639)
#3553
| Job | Run time |
|---|---|
| 14m 50s | |
| 17m 42s | |
| 32m 32s |
internal package (#6639)
#3553
| Job | Run time |
|---|---|
| 14m 50s | |
| 17m 42s | |
| 32m 32s |