ceremonyclient/pebble/testdata/iter_histories/range_key_masking

reset
----

batch commit
range-key-set a d @8 boop
set a@2 a@2
set a@3 a@3
set a@9 a@9
set a@10 a@10
set b b
----
committed 6 keys

combined-iter
seek-prefix-ge a
next
next
next
next
next
----
a: (., [a-"a\x00") @8=boop UPDATED)
a@10: (a@10, [a-"a\x00") @8=boop)
a@9: (a@9, [a-"a\x00") @8=boop)
a@3: (a@3, [a-"a\x00") @8=boop)
a@2: (a@2, [a-"a\x00") @8=boop)
.

# Perform the above iteration with range-key masking enabled at a suffix equal
# to the range key's. The [a,d)@8 range key should serve as a masking, obscuring
# the points a@3 and a@2.

combined-iter mask-suffix=@8
seek-prefix-ge a
next
next
next
----
a: (., [a-"a\x00") @8=boop UPDATED)
a@10: (a@10, [a-"a\x00") @8=boop)
a@9: (a@9, [a-"a\x00") @8=boop)
.

# Perform the same thing but with a mask suffix below the range key's. All the
# points should be visible again.
#
# Then use SetOptions to raise the mask. The masked points should disappear.

combined-iter mask-suffix=@7
seek-prefix-ge a
next
next
next
next
next
set-options key-types=both mask-suffix=@8
seek-prefix-ge a
next
next
next
----
a: (., [a-"a\x00") @8=boop UPDATED)
a@10: (a@10, [a-"a\x00") @8=boop)
a@9: (a@9, [a-"a\x00") @8=boop)
a@3: (a@3, [a-"a\x00") @8=boop)
a@2: (a@2, [a-"a\x00") @8=boop)
.
.
a: (., [a-"a\x00") @8=boop UPDATED)
a@10: (a@10, [a-"a\x00") @8=boop)
a@9: (a@9, [a-"a\x00") @8=boop)
.

# Test that switching out of prefix iteration correctly expands the bounds
# beyond the scope of the previous prefix.

combined-iter
seek-prefix-ge a
next
seek-ge a@3
----
a: (., [a-"a\x00") @8=boop UPDATED)
a@10: (a@10, [a-"a\x00") @8=boop)
a@3: (a@3, [a-d) @8=boop UPDATED)

# Test a range key masking case where the range key is not immediately
# masking point keys, but masks point keys once positioned beneath it.

reset
----

batch commit
range-key-set d e @5 boop
set a@1 a1
set b@3 b3
set d@3 d3
----
committed 4 keys

combined-iter mask-suffix=@9
first
next
next
next
----
a@1: (a1, .)
b@3: (b3, .)
d: (., [d-e) @5=boop UPDATED)
.

# Test a broad range key that masks all the point keys.

reset block-size=20
----

batch commit
range-key-set a z @5 boop
set a@1 foo
set b@3 foo
set c@3 foo
set d@1 foo
set e@3 foo
set f@3 foo
set g@2 foo
set h@2 foo
set i@2 foo
set j@2 foo
set k@0 foo
set l@2 foo
set m@1 foo
set n@3 foo
set o@4 foo
set p@2 foo
set q@2 foo
set r@1 foo
set s@2 foo
set t@3 foo
set u@2 foo
set v@0 foo
set w@0 foo
set x@2 foo
set y@4 foo
----
committed 26 keys

flush
----

combined-iter mask-suffix=@9
first
next
stats
----
a: (., [a-z) @5=boop UPDATED)
.
stats: (interface (dir, seek, step): (fwd, 1, 1), (rev, 0, 0)), (internal (dir, seek, step): (fwd, 1, 1), (rev, 0, 0)),
(internal-stats: (block-bytes: (total 1.1KB, cached 0B, read-time 0s)), (points: (count 25, key-bytes 75B, value-bytes 75B, tombstoned 0))),
(range-key-stats: (count 1), (contained points: (count 25, skipped 25)))

# Repeat the above test, but with an iterator that uses a block-property filter
# mask. The internal stats should reflect fewer bytes read and fewer points
# visited by the internal iterators.

combined-iter mask-suffix=@9 mask-filter
first
next
stats
----
a: (., [a-z) @5=boop UPDATED)
.
stats: (interface (dir, seek, step): (fwd, 1, 1), (rev, 0, 0)), (internal (dir, seek, step): (fwd, 1, 1), (rev, 0, 0)),
(internal-stats: (block-bytes: (total 514B, cached 514B, read-time 0s)), (points: (count 2, key-bytes 6B, value-bytes 6B, tombstoned 0))),
(range-key-stats: (count 1), (contained points: (count 2, skipped 2)))

# Perform a similar comparison in reverse.

combined-iter mask-suffix=@9
last
prev
stats
----
a: (., [a-z) @5=boop UPDATED)
.
stats: (interface (dir, seek, step): (fwd, 0, 0), (rev, 1, 1)), (internal (dir, seek, step): (fwd, 0, 0), (rev, 1, 1)),
(internal-stats: (block-bytes: (total 1.1KB, cached 1.1KB, read-time 0s)), (points: (count 25, key-bytes 75B, value-bytes 75B, tombstoned 0))),
(range-key-stats: (count 1), (contained points: (count 25, skipped 25)))

combined-iter mask-suffix=@9 mask-filter
last
prev
stats
----
a: (., [a-z) @5=boop UPDATED)
.
stats: (interface (dir, seek, step): (fwd, 0, 0), (rev, 1, 1)), (internal (dir, seek, step): (fwd, 0, 0), (rev, 1, 1)),
(internal-stats: (block-bytes: (total 514B, cached 514B, read-time 0s)), (points: (count 2, key-bytes 6B, value-bytes 6B, tombstoned 0))),
(range-key-stats: (count 1), (contained points: (count 2, skipped 2)))

# Perform similar comparisons with seeks.

combined-iter mask-suffix=@9
seek-ge m
next
stats
----
m: (., [a-z) @5=boop UPDATED)
.
stats: (interface (dir, seek, step): (fwd, 1, 1), (rev, 0, 0)), (internal (dir, seek, step): (fwd, 1, 1), (rev, 0, 0)),
(internal-stats: (block-bytes: (total 789B, cached 789B, read-time 0s)), (points: (count 13, key-bytes 39B, value-bytes 39B, tombstoned 0))),
(range-key-stats: (count 1), (contained points: (count 13, skipped 13)))

combined-iter mask-suffix=@9 mask-filter
seek-ge m
next
stats
----
m: (., [a-z) @5=boop UPDATED)
.
stats: (interface (dir, seek, step): (fwd, 1, 1), (rev, 0, 0)), (internal (dir, seek, step): (fwd, 1, 1), (rev, 0, 0)),
(internal-stats: (block-bytes: (total 514B, cached 514B, read-time 0s)), (points: (count 2, key-bytes 6B, value-bytes 6B, tombstoned 0))),
(range-key-stats: (count 1), (contained points: (count 2, skipped 2)))

combined-iter mask-suffix=@9
seek-lt m
prev
stats
----
a: (., [a-z) @5=boop UPDATED)
.
stats: (interface (dir, seek, step): (fwd, 0, 0), (rev, 1, 1)), (internal (dir, seek, step): (fwd, 0, 0), (rev, 1, 1)),
(internal-stats: (block-bytes: (total 789B, cached 789B, read-time 0s)), (points: (count 12, key-bytes 36B, value-bytes 36B, tombstoned 0))),
(range-key-stats: (count 1), (contained points: (count 12, skipped 12)))

combined-iter mask-suffix=@9 mask-filter
seek-lt m
prev
stats
----
a: (., [a-z) @5=boop UPDATED)
.
stats: (interface (dir, seek, step): (fwd, 0, 0), (rev, 1, 1)), (internal (dir, seek, step): (fwd, 0, 0), (rev, 1, 1)),
(internal-stats: (block-bytes: (total 539B, cached 539B, read-time 0s)), (points: (count 2, key-bytes 6B, value-bytes 6B, tombstoned 0))),
(range-key-stats: (count 1), (contained points: (count 2, skipped 2)))