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  1. Core Server
  2. SERVER-39771

TextMatchExpression crashes instead of serializing in some cases

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    • Type: Icon: Bug Bug
    • Resolution: Fixed
    • Priority: Icon: Major - P3 Major - P3
    • 4.0.7, 4.1.9
    • Affects Version/s: None
    • Component/s: Querying
    • Fully Compatible
    • ALL
    • v4.0
    • Hide 
      db.test.drop();
db.test.createIndex({x: "text"});
db.test.find({ $nor: [{ $text: { $search: 'x' } }]});
      Show
      db.test.drop(); db.test.createIndex({x: "text"}); db.test.find({ $nor: [{ $text: { $search: 'x' } }]});
    • Query 2019-03-25
    • 36

      As part of the fix for https://jira.mongodb.org/browse/SERVER-39019,
      NotMatchExpression::serialize() takes one of two paths when serializing its children. Failure to take the old Nor branch in favor of the new implementation causes TextMatchExpression to hit a MONGO_UNREACHABLE since it inherits from PathMatchExpression.

      We propose either updating TextMatchExpression so it doesn't derive from PathMatchExpression or adding a special case to NotMatchExpression::serialize() for TextMatchExpression children which takes the old Nor branch.

            Assignee:
            james.wahlin@mongodb.com James Wahlin
            Reporter:
            jacob.evans@mongodb.com Jacob Evans
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              Created:
              Updated:
              Resolved: