define
a.SET.1:b
----

iter
first
next
----
a#1,1:b
.

define
a.SET.2:c
a.SET.1:b
----

iter
first
next
----
a#2,1:c
.

iter snapshots=0
first
next
----
a#2,1:c
.

iter snapshots=1
first
next
----
a#2,1:c
.

iter snapshots=2
first
next
next
----
a#2,1:c
a#1,1:b
.

define
a.DEL.2:
a.SET.1:b
----

iter
first
next
----
a#2,0:
.

iter elide-tombstones=true
first
----
.

iter elide-tombstones=true snapshots=2
first
next
next
----
a#2,0:
a#1,1:b
.

iter elide-tombstones=true snapshots=1
first
next
----
a#2,0:
.

define
a.DEL.2:
a.SET.1:b
b.SET.3:c
----

iter
first
next
next
----
a#2,0:
b#3,1:c
.

iter snapshots=1
first
next
next
----
a#2,0:
b#3,1:c
.

iter snapshots=2
first
next
next
next
----
a#2,0:
a#1,1:b
b#3,1:c
.

define
a.SET.1:a
b.SET.2:b
c.SET.3:c
----

iter
first
next
next
next
----
a#1,1:a
b#2,1:b
c#3,1:c
.

define
a.MERGE.3:d
a.MERGE.2:c
a.SET.1:b
b.MERGE.2:b
b.MERGE.1:a
----

iter
first
next
next
----
a#3,1:bcd[base]
b#2,2:ab
.

iter snapshots=3
first
next
next
next
----
a#3,2:d
a#2,1:bc[base]
b#2,2:ab
.

define
a.SET.9:b
a.DEL.8:
a.SET.7:d
a.DEL.6:
a.SET.5:f
----

iter
first
next
----
a#9,18:b
.

iter snapshots=6
first
next
next
----
a#9,18:b
a#5,1:f
.

iter snapshots=7
first
next
next
----
a#9,18:b
a#6,0:
.

iter snapshots=8
first
next
next
----
a#9,18:b
a#7,18:d
.

iter snapshots=9
first
next
next
----
a#9,1:b
a#8,0:
.

iter snapshots=10
first
next
----
a#9,18:b
.

iter snapshots=(5,6,7,8,9)
first
next
next
next
next
next
----
a#9,1:b
a#8,0:
a#7,1:d
a#6,0:
a#5,1:f
.

define
a.INVALID.2:b
a.SET.1:c
----

iter
first
----
err=invalid internal key kind: INVALID

define
a.SET.2:b
a.INVALID.1:c
----

iter
first
next
----
a#2,18:b
err=invalid internal key kind: INVALID

define
a.MERGE.2:b
a.INVALID.1:c
----

iter
first
next
----
a#2,2:b
err=invalid internal key kind: INVALID

define
a.INVALID.2:c
a.RANGEDEL.1:d
----

iter
first
tombstones
----
err=invalid internal key kind: INVALID
.

define
a.MERGE.2:b
a.MERGE.1:c
a.MERGE.0:d
----

iter snapshots=(1,2)
first
next
next
next
----
a#2,2:b
a#1,2:c
a#0,2:d
.

define
a.SET.2:b
a.RANGEDEL.1:c
b.RANGEDEL.4:d
b.SET.2:e
c.SET.3:f
----

iter
first
next
next
next
tombstones
----
a#2,18:b
a#1,15:c
b#4,15:d
.
a-b#1
b-c#4
c-d#4
.

iter snapshots=2
first
next
next
next
tombstones
----
a#2,1:b
a#1,15:c
b#4,15:d
.
a-b#1
b-c#4
b-c#1
c-d#4
.

iter snapshots=3
first
next
next
next
next
tombstones
----
a#2,18:b
a#1,15:c
b#4,15:d
b#2,1:e
.
a-b#1
b-c#4
b-c#1
c-d#4
.

iter snapshots=4
first
next
next
next
next
next
tombstones
----
a#2,18:b
a#1,15:c
b#4,15:d
b#2,1:e
c#3,1:f
.
a-b#1
b-c#4
b-c#1
c-d#4
.

define
a.RANGEDEL.3:e
b.SET.4:b
c.SET.3:c
d.SET.2:d
e.SET.1:e
----

iter
first
next
next
next
next
tombstones
----
a#3,15:e
b#4,1:b
c#3,1:c
e#1,1:e
.
a-e#3
.

define
a.RANGEDEL.3:e
b.MERGE.4:b
c.MERGE.3:c
d.MERGE.2:d
e.MERGE.1:e
----

iter
first
next
next
next
next
tombstones
----
a#3,15:e
b#4,2:b
c#3,2:c
e#1,2:e
.
a-e#3
.

define
a.RANGEDEL.3:c
b.MERGE.5:e
b.MERGE.4:d
b.MERGE.2:c
b.MERGE.1:b
d.MERGE.5:c
d.MERGE.4:b
d.RANGEDEL.3:f
d.MERGE.2:e
d.MERGE.1:d
----

iter
first
next
next
next
next
tombstones
----
a#3,15:c
b#5,1:de[base]
d#5,2:bc
d#3,15:f
.
a-c#3
d-f#3
.

define
a.RANGEDEL.3:d
b.RANGEDEL.2:e
c.RANGEDEL.1:f
----

iter
first
next
next
next
tombstones
----
a#3,15:d
b#2,15:e
c#1,15:f
.
a-b#3
b-c#3
c-d#3
d-e#2
e-f#1
.

iter snapshots=2
first
next
next
next
tombstones
----
a#3,15:d
b#2,15:e
c#1,15:f
.
a-b#3
b-c#3
c-d#3
c-d#1
d-e#2
d-e#1
e-f#1
.

iter snapshots=3
first
next
next
next
tombstones
----
a#3,15:d
b#2,15:e
c#1,15:f
.
a-b#3
b-c#3
b-c#2
c-d#3
c-d#2
d-e#2
e-f#1
.

iter snapshots=(2,3)
first
next
next
next
tombstones
----
a#3,15:d
b#2,15:e
c#1,15:f
.
a-b#3
b-c#3
b-c#2
c-d#3
c-d#2
c-d#1
d-e#2
d-e#1
e-f#1
.

define
a.RANGEDEL.10:k
f.SET.9:f
f.SET.8:f
----

iter snapshots=(9,10)
first
next
tombstones f
next
tombstones
----
a#10,15:k
f#9,1:f
a-f#10
.
f#8,1:f
f-k#10
.

define
f.RANGEDEL.10:k
f.SET.9:f
f.SET.8:f
----

iter snapshots=(9,10)
first
next
tombstones f
next
tombstones
----
f#10,15:k
f#9,1:f
.
f#8,1:f
f-k#10
.

define
a.SET.1:a
b.RANGEDEL.2:d
c.RANGEDEL.3:e
d.SET.4:d
----

iter
first
next
next
next
tombstones c
tombstones
----
a#1,1:a
b#2,15:d
c#3,15:e
d#4,1:d
b-c#2
.
c-d#3
d-e#3
.

iter snapshots=3
first
next
next
next
tombstones c
tombstones
----
a#1,1:a
b#2,15:d
c#3,15:e
d#4,1:d
b-c#2
.
c-d#3
c-d#2
d-e#3
.

define
a.SET.1:a
b.RANGEDEL.2:d
c.SET.4:d
----

iter
first
next
next
tombstones c
tombstones
----
a#1,1:a
b#2,15:d
c#4,1:d
b-c#2
.
c-d#2
.

define
a.RANGEDEL.2:d
a.SET.2:a
b.SET.2:b
c.SET.2:c
----

iter
first
next
next
next
next
----
a#2,15:d
a#2,1:a
b#2,1:b
c#2,1:c
.

define
a.SINGLEDEL.1:
----

iter
first
next
----
a#1,7:
.

iter elide-tombstones=true
first
----
.

define
a.SINGLEDEL.2:
a.SINGLEDEL.1:
----

iter
first
next
----
a#2,7:
.

define
a.SINGLEDEL.3:
a.SINGLEDEL.2:
a.SET.1:a
----

iter
first
----
.

define
a.SET.3:a
b.SINGLEDEL.2:
b.DEL.1:
----

iter
first
next
next
----
a#3,1:a
b#2,0:
.

define
a.SINGLEDEL.2:
a.DEL.1:
----

iter
first
next
----
a#2,0:
.

iter elide-tombstones=true
first
----
.

define
a.SINGLEDEL.2:
a.MERGE.1:
----

iter
first
next
----
a#2,0:
.

iter elide-tombstones=true
first
----
.

define
a.SINGLEDEL.2:
a.SET.1:b
----

iter
first
----
.

# SET that meets a SINGLEDEL is transformed into a SETWITHDEL.

define
a.SET.2:b
a.SINGLEDEL.1:
----

iter
first
next
----
a#2,18:b
.

define
a.MERGE.6:b
a.SINGLEDEL.5:
a.SET.4:a
----

iter
first
next
----
a#6,18:b[base]
.

# Non-deterministic use of SINGLEDEL where there are two older SETs that have
# not been deleted or single deleted. It is permitted to shadow both.
define
a.MERGE.6:b
a.SINGLEDEL.5:
a.SET.4:a
a.SET.3:a
----

iter
first
next
----
a#6,18:b[base]
.

define
a.SINGLEDEL.2:
a.SET.1:b
b.SET.3:c
----

iter
first
next
----
b#3,1:c
.

define
a.SINGLEDEL.3:
a.SET.2:b
a.SET.1:a
----

iter
first
next
----
a#1,1:a
.

define
a.SINGLEDEL.3:
a.MERGE.2:b
a.MERGE.1:a
----

iter
first
next
----
a#3,0:
.

define
a.SINGLEDEL.4:
a.SET.3:val
a.SINGLEDEL.2:
a.SET.1:val
----

iter
first
----
.

iter snapshots=2
first
next
next
----
a#2,7:
a#1,1:val
.

define
a.SINGLEDEL.4:
a.SET.3:val
a.DEL.2:
a.SET.1:val
----

iter
first
next
----
a#2,0:
.

iter snapshots=2
first
next
next
----
a#2,0:
a#1,1:val
.

iter snapshots=3
first
next
----
a#2,0:
.

iter snapshots=(2,3)
first
next
next
----
a#2,0:
a#1,1:val
.

define
a.SINGLEDEL.4:
a.SET.3:c
a.MERGE.2:b
a.SET.1:a
----

iter
first
next
----
a#2,1:ab[base]
.

iter snapshots=2
first
next
next
----
a#2,2:b
a#1,1:a
.

iter snapshots=3
first
next
----
a#2,1:ab[base]
.

iter snapshots=(2,3,4)
first
next
next
next
next
----
a#4,7:
a#3,1:c
a#2,2:b
a#1,1:a
.

define
a.SINGLEDEL.3:
a.RANGEDEL.2:c
a.SET.1:val
----

iter
first
next
next
tombstones
----
a#3,7:
a#2,15:c
.
a-c#2
.

define
a.RANGEDEL.3:d
a.DEL.2:
a.SET.1:a
d.DEL.2:
----

iter
first
next
next
tombstones
----
a#3,15:d
d#2,0:
.
a-d#3
.

iter snapshots=3
first
next
next
next
----
a#3,15:d
a#2,0:
d#2,0:
.

iter snapshots=2
first
next
next
next
----
a#3,15:d
a#1,1:a
d#2,0:
.

iter snapshots=1
first
next
next
----
a#3,15:d
d#2,0:
.

define
a.MERGE.2:a
b.RANGEDEL.1:c
----

iter
first
tombstones a
next
next
tombstones
----
a#2,2:a
.
b#1,15:c
.
b-c#1
.

define
a.MERGE.2:v2
a.RANGEDEL.1:b
a.MERGE.1:v1
----

iter allow-zero-seqnum=true
first
next
next
next
tombstones
----
a#2,2:v2
a#1,15:b
a#0,2:v1
.
a-b#1
.

# Verify that we transform merge+del -> set.

define
a.MERGE.5:5
a.DEL.3:
a.MERGE.1:1
----

iter
first
next
----
a#5,18:5[base]
.

iter allow-zero-seqnum=true
first
next
----
a#0,18:5[base]
.

iter elide-tombstones=true
first
next
----
a#5,18:5[base]
.

iter snapshots=2
first
next
next
----
a#5,18:5[base]
a#1,2:1
.

iter snapshots=2 elide-tombstones=true
first
next
next
----
a#5,18:5[base]
a#1,2:1
.

# Verify that we transform merge+rangedel -> set. This isn't strictly
# necessary, but provides consistency with the behavior for merge+del.

define
a.RANGEDEL.3:c
b.MERGE.5:5
b.SET.2:2
b.MERGE.1:1
----

iter
first
next
next
----
a#3,15:c
b#5,1:5[base]
.

iter allow-zero-seqnum=true
first
next
next
----
a#3,15:c
b#0,1:5[base]
.

iter snapshots=2
first
next
next
----
a#3,15:c
b#5,1:5[base]
b#1,2:1

define
a.RANGEDEL.3:c
b.MERGE.5:5
b.MERGE.2:2
b.MERGE.1:1
----

iter
first
next
next
----
a#3,15:c
b#5,1:5[base]
.

iter snapshots=2
first
next
next
----
a#3,15:c
b#5,1:5[base]
b#1,2:1

# SET that meets a DEL is transformed into a SETWITHDEL.

define
a.SET.2:b
a.DEL.1:
----

iter
first
next
----
a#2,18:b
.

iter snapshots=2
first
next
next
----
a#2,1:b
a#1,0:
.

define
a.SET.3:c
a.DEL.2:
a.SET.1:b
----

iter
first
next
----
a#3,18:c
.

iter snapshots=2
first
next
next
----
a#3,18:c
a#1,1:b
.

define
a.SET.3:c
a.SET.2:b
a.DEL.1:
----

iter
first
next
----
a#3,18:c
.

iter snapshots=3
first
next
next
----
a#3,1:c
a#2,18:b
.

iter snapshots=2
first
next
next
----
a#3,1:c
a#1,0:
.

define
a.DEL.3:
a.SET.2:b
a.DEL.1:
----

iter
first
next
----
a#3,0:
.

iter snapshots=3
first
next
next
----
a#3,0:
a#2,18:b
.

iter snapshots=2
first
next
next
----
a#3,0:
a#1,0:
.

# SETWITHDEL-eligible entries at or under a RANGEDEL at the same user key should
# be skipped.
define
a.SET.3:c
a.RANGEDEL.2:z
a.SET.2:b
a.DEL.1:
----

iter allow-zero-seqnum=true
first
next
next
----
a#0,18:c
a#2,15:z
.

iter allow-zero-seqnum=true snapshots=3
first
next
next
next
----
a#3,1:c
a#2,15:z
a#0,18:b
.

iter allow-zero-seqnum=true snapshots=2
first
next
next
next
----
a#3,18:c
a#2,15:z
a#1,0:
.

define
a.SET.4:c
a.RANGEDEL.3:z
a.SET.2:b
a.DEL.1:
----

iter
first
next
next
----
a#4,18:c
a#3,15:z
.

# Invalid keys are emitted under SETWITHDEL.

define
a.SET.2:b
a.INVALID.1:
----

iter
first
next
----
a#2,18:b
err=invalid internal key kind: INVALID

define
a.SET.3:c
a.INVALID.2:
a.SET.1:b
----

iter
first
next
----
a#3,18:c
err=invalid internal key kind: INVALID

# SINGLEDEL that meets a SETWITHDEL is transformed into a DEL.

define
a.SINGLEDEL.3:
a.SETWITHDEL.2:d
b.SET.1:c
----

iter
first
next
next
----
a#3,0:
b#1,1:c
.

iter snapshots=2
first
next
next
----
a#3,0:
b#1,1:c
.

iter snapshots=3
first
next
next
next
----
a#3,7:
a#2,18:d
b#1,1:c
.

define
a.SETWITHDEL.3:3
a.SET.2:d
b.SET.1:c
----

iter
first
next
next
----
a#3,18:3
b#1,1:c
.

iter snapshots=3
first
next
next
next
----
a#3,18:3
a#2,1:d
b#1,1:c
.
