[LUCENE-8208] Vector.isNumericallyIdentical() can produce unexpected results

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 6.7, 7.3, 8.0
• Component/s: modules/spatial3d
• Lucene Fields: New
• Assignee: Karl Wright
• Reporter: Ignacio Vera
• Created: 15/Mar/18 15:51
• Updated: 28/Aug/22 15:26
• Resolved: 15/Mar/18 16:32

Description

The method Vector.isNumericallyIdentical() seems to produce wrong results in some cases. For example it considers that vectors (1,0,0) and (-1,0,0) are numerically identical whichI is probably wrong.

This behavior might produce unexpected behaviors down the line.