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The SE definition of "answered" question is: has an answer that is either accepted or has positive score. But the search parameter isanswered appears to ignore the "accepted" clause: when set to "no" it still returns questions with an accepted answer, as long as it has 0 score.

Sample query to reproduce the bug (unless meta effect kicks in and the answers get upvotes).

By the way, it seems that isanswered works only when is:question is present, but I'm not complaining about that... yet.

Also, this parameter is not listed on the advanced search help page, but I'm not complaining about that either... yet.

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  • isanswered works if you're searching for those that aren't unanswered, as the tab defines it – random Feb 24 '15 at 19:35
  • No. The unanswered tab does not list questions with an accepted answer. The parameter isanswered:no does. – user259867 Feb 24 '15 at 19:36
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    Here's a sample query that shows all questions with this issue: stackoverflow.com/… – Qantas 94 Heavy Feb 25 '15 at 9:02
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That is the flag we use for the unanswered tab. It's just named badly. Consider thinking about it as hasAnswerWithScoreGreatherThanZero.

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  • @FamousBlueRaincoat: I was just going to say... what other golden treasures reside in the search queries that we don't know about...? – Werner Feb 25 '15 at 19:22

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