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Fixed minor typo in comment for MergeOperator::FullMergeV2() (#6759)

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Summary:
Fixed minor typo in comment for FullMergeV2().
Last operand up to snapshot should be +4 instead of +3.

Signed-off-by: Albert Hse-Lin Chen <hselin@kalista.io>
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6759

Reviewed By: cheng-chang

Differential Revision: D21260295

Pulled By: zhichao-cao

fbshipit-source-id: cc942306f246c8606538feb30bfdf6df9fb6c54e
This commit is contained in:
Albert Hse-Lin Chen 2020-04-27 14:39:54 -07:00 committed by Facebook GitHub Bot
parent 249eff0f30
commit cc8d16efd6
1 changed files with 1 additions and 1 deletions
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include/rocksdb/merge_operator.h Normal file → Executable file
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@ -125,7 +125,7 @@ class MergeOperator {
// In the example above, Get(K) operation will call FullMerge with a base // In the example above, Get(K) operation will call FullMerge with a base
// value of 2 and operands [+1, +2]. Compaction process might decide to // value of 2 and operands [+1, +2]. Compaction process might decide to
// collapse the beginning of the history up to the snapshot by performing // collapse the beginning of the history up to the snapshot by performing
// full Merge with base value of 0 and operands [+1, +2, +7, +3]. // full Merge with base value of 0 and operands [+1, +2, +7, +4].
virtual bool FullMergeV2(const MergeOperationInput& merge_in, virtual bool FullMergeV2(const MergeOperationInput& merge_in,
MergeOperationOutput* merge_out) const; MergeOperationOutput* merge_out) const;