echo
----
db0.Put(ctx, tk(2), sv(1)) // @0.000000001,0 <nil>
db0.Get(ctx, tk(2)) // @0.000000002,0 (v1, <nil>)
db0.DelRangeUsingTombstone(ctx, tk(1), tk(3) /* @s3 */) // @0.000000003,0 <nil>
/Table/100/"0000000000000002"/0.000000001,0 @ s1 v1
/Table/100/"000000000000000{1"-3"}/0.000000003,0 @ s3 <nil>
