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#3865 followup for fix performance degression introduced by switching order of operands (#4284)

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Summary:
Followup for #4266. There is one more place in **get_context.cc** where **MergeOperator::ShouldMerge** should be called with reversed list of operands.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4284

Differential Revision: D9380008

Pulled By: sagar0

fbshipit-source-id: 70ec26e607e5b88465e1acbdcd6c6171bd76b9f2
This commit is contained in:
Andrey Zagrebin 2018-08-17 10:51:30 -07:00 committed by Yanqin Jin
parent 6a5e8486b6
commit e12d15320a
1 changed files with 1 additions and 1 deletions
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2
table/get_context.cc
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@ -200,7 +200,7 @@ bool GetContext::SaveValue(const ParsedInternalKey& parsed_key,
merge_context_->PushOperand(value, false);
}
if (merge_operator_ != nullptr &&
merge_operator_->ShouldMerge(merge_context_->GetOperands())) {
merge_operator_->ShouldMerge(merge_context_->GetOperandsDirectionBackward())) {
state_ = kFound;
if (LIKELY(pinnable_val_ != nullptr)) {
Status merge_status = MergeHelper::TimedFullMerge(