Completion Suggester Search Analyzer and Scoring

Hi ES Community,

Had a few of Completion Suggester related questions that I'd greatly appreciate any feedback on.

  1. If I wanted to boost by popularity of a search on a suggest field, is that possible? For example, using a score modifier?

  2. Can one use Explain with Completion Suggester queries?

  3. If I ...
    a) set up a suggest field with analyzer: whitespace and search_analyzer: whitespace
    b) add the following suggest inputs for a given entry ["hi", "there", "hi there"]
    c) run a suggest query with text = "there hi"
    ... it returns 0 results. Is this because completion suggesters are prefix queries? If so, is there some analyzer I can use where order doesn't matter?

Thank You!