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fix delete range bug

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Summary:
Fix this [issue](https://github.com/facebook/rocksdb/issues/2989).
ajkr PTAL

Close #2989
Closes https://github.com/facebook/rocksdb/pull/3017

Differential Revision: D6078541

Pulled By: yiwu-arbug

fbshipit-source-id: ef3db87b37b9156f83ca468aa39dea1f6dbde49d
This commit is contained in:
zhangjinpeng1987 2017-10-17 11:09:29 -07:00 committed by Facebook Github Bot
parent c0208dffbe
commit 966b32b57c
1 changed files with 3 additions and 1 deletions
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4
db/compaction_job.cc
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@ -1041,6 +1041,7 @@ Status CompactionJob::FinishCompactionOutputFile(
auto meta = &sub_compact->current_output()->meta;
if (s.ok()) {
Slice lower_bound_guard, upper_bound_guard;
std::string smallest_user_key;
const Slice *lower_bound, *upper_bound;
if (sub_compact->outputs.size() == 1) {
// For the first output table, include range tombstones before the min key
@ -1050,7 +1051,8 @@ Status CompactionJob::FinishCompactionOutputFile(
// For subsequent output tables, only include range tombstones from min
// key onwards since the previous file was extended to contain range
// tombstones falling before min key.
lower_bound_guard = meta->smallest.user_key();
smallest_user_key = meta->smallest.user_key().ToString(false /*hex*/);
lower_bound_guard = Slice(smallest_user_key);
lower_bound = &lower_bound_guard;
} else {
lower_bound = nullptr;