[LUCENE-7686] NRT suggester should have option to filter out duplicates

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 6.5, 7.0
• Lucene Fields: New
• Assignee: Michael McCandless
• Reporter: Michael McCandless
• Created: 10/Feb/17 11:18
• Updated: 28/Aug/22 15:10
• Resolved: 22/Feb/17 21:38

Description

Some of the other suggesters have this ability, and it's quite simple to add it to the NRT suggester as long as the thing we are filtering on is the suggest key itself, not e.g. another stored field from the document.