[LUCENE-5369] Add an UpperCaseFilter

• Type: New Feature
• Status: Reopened
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 4.7, 6.0
• Lucene Fields: Patch Available
• Assignee: Ryan McKinley
• Reporter: Ryan McKinley
• Created: 13/Dec/13 21:49
• Updated: 27/Aug/24 15:34
• Resolved: 09/Jan/14 04:52

Description

We should offer a standard way to force upper-case tokens. I understand that lowercase is safer for general search quality because some uppercase characters can represent multiple lowercase ones.

However, having upper-case tokens is often nice for faceting (consider normalizing to standard acronyms)