[LUCENE-9645] Delete useless variable negativeDeltas in BKDReader$IndexTree

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Invalid
• Affects Version/s: 8.6.2
• Component/s: core/other
• Lucene Fields: New
• Assignee: Unassigned
• Reporter: kkewwei
• Created: 19/Dec/20 04:19
• Updated: 21/Dec/20 10:01
• Resolved: 21/Dec/20 10:01

Description

In BKDReader$IndexTree, the private final variable negativeDeltas seems useless. It will be only used in BKDReader.readNodeData(), we use negativeDeltas[level * numIndexDims + splitDim] to check whether the current nod is left or right, but it can be replaced by isLeft which is the function parameter.

Issue Links

• links to: GitHub Pull Request #2158