key0:int:0 f0:string:1 f1:int:2 f2:int:3 f3:double:4
partition key: key0
bucket count: -1
"metadata.stats-dense-store", "true"
"fields.f3.stats-mode", "none"

Msgs:
snapshot-1
Add(0, "Alice", 11, 21, 31.1)
Add(0, "Bob", 12, 22, 32.2)

Add(1, "Cathy", 13, 23, 33.3)
Add(1, "David", 14, 24, 34.4)

NoCompact

schema evolution
f0 is deleted
f1 is renamed to f2
f2 is renamed to f1
f4 is added to the last field

key0:int:0 f2:int:2 f1:int:3 f3:double:4 f4:int:5

snapshot-2
Add(0, 25, 15, 35.5, 45)
Add(0, 26, 16, 36.6, 46)

Add(1, 27, 17, 37.7, 47)
Add(1, 28, 18, 38.8, 48)

NoCompact
