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78 lines
1.1 KiB
Plaintext
78 lines
1.1 KiB
Plaintext
# This is not actually a manual compaction test, and simply uses manual
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# compaction to demonstrate single delete semantics. Specifically, it
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# demonstrates that the behavior can be non-deterministic if not used
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# correctly.
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# Define a sequence of SET=>SET=>DEL=>SET=>SINGLEDEL.
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define target-file-sizes=(1, 1, 1, 1, 1)
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L1
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a.SINGLEDEL.10:
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L2
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a.SET.9:v3
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L3
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a.DEL.8:
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L4
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a.SET.7:v2
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L5
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a.SET.6:v1
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----
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1:
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000004:[a#10,SINGLEDEL-a#10,SINGLEDEL]
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2:
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000005:[a#9,SET-a#9,SET]
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3:
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000006:[a#8,DEL-a#8,DEL]
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4:
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000007:[a#7,SET-a#7,SET]
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5:
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000008:[a#6,SET-a#6,SET]
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# No data.
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iter
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first
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----
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.
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# Compact away the DEL.
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compact a-b L2
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----
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1:
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000004:[a#10,SINGLEDEL-a#10,SINGLEDEL]
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3:
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000009:[a#9,SET-a#9,SET]
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4:
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000007:[a#7,SET-a#7,SET]
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5:
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000008:[a#6,SET-a#6,SET]
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# No data.
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iter
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first
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----
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.
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# Do two compactions to compact away the SINGLEDEL and 1 SET.
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compact a-b L1
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----
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2:
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000010:[a#10,SINGLEDEL-a#10,SINGLEDEL]
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3:
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000009:[a#9,SET-a#9,SET]
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4:
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000007:[a#7,SET-a#7,SET]
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5:
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000008:[a#6,SET-a#6,SET]
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compact a-b L2
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----
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4:
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000007:[a#7,SET-a#7,SET]
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5:
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000008:[a#6,SET-a#6,SET]
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# Deleted data reappears.
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iter
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first
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----
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a: (v2, .)
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