[LUCENE-1604] Stop creating huge arrays to represent the absense of field norms

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.9
• Fix Version/s: 2.9
• Component/s: core/index
• Lucene Fields: New
• Assignee: Michael McCandless
• Reporter: Shon Vella
• Created: 14/Apr/09 17:22
• Updated: 25/Sep/09 16:23
• Resolved: 28/Apr/09 20:39

Description

Creating and keeping around huge arrays that hold a constant value is very inefficient both from a heap usage standpoint and from a localility of reference standpoint. It would be much more efficient to use null to represent a missing norms table.