[jira] [Created] (LUCENE-8094) Improve TermInSetQuery.toString

["Michael McCandless (JIRA)" <ji...@apache.org>]

Michael McCandless created LUCENE-8094:
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             Summary: Improve TermInSetQuery.toString
                 Key: LUCENE-8094
                 URL: https://issues.apache.org/jira/browse/LUCENE-8094
             Project: Lucene - Core
          Issue Type: Improvement
            Reporter: Michael McCandless
             Fix For: master (8.0), 7.3


Today a {{TermInSetQuery}} on field F and terms A, B, C returns this from {{toString}}:

{noformat}
  F:A F:B F:C
{noformat}

But this gets misleading when you embed it in a {{BooleanQuery}} as a negated clause, which then renders like this:

{noformat}
  -F:A F:B F:C
{noformat}

Making it look like only the first clause is negated when in fact they all are.

So ... I'd like to instead change it to:

{noformat}
F:(A B C)
{noformat}

I know {{Query.toString}} is simply best-effort, is not guaranteed to make something you can then parse in any query parser back to itself, etc., but I think we should still try to make a string that is not misleading when humans stare at it?



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