Semen Boikov created IGNITE-6703:
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Summary: Unnecessary lookup in
BPlusTree.ForwardCursor.fillFromBuffer for startIdx 0
Key: IGNITE-6703
URL: https://issues.apache.org/jira/browse/IGNITE-6703
Project: Ignite
Issue Type: Improvement
Security Level: Public (Viewable by anyone)
Reporter: Semen Boikov
fillFromBuffer calls findLowerBound if passed startIdx=0,
BPlusTree.ForwardCursor.fillFromBuffer can be called in 2 cases:
1. When lower bound is not known
2. When lower bound is found in BPlusTree.Search. It seems in this case 0 is
valid value for startIdx and findLowerBound is not needed in this case.
I it possible for example to change findLowerBound's contract and use -1 as
'unknown startIdx' value.
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