Use of invalid regex in schema validator can prevent upgrade

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    • Type: Bug
    • Resolution: Duplicate
    • Priority: Major - P3
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    • Affects Version/s: 4.2.2
    • Component/s: Querying
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    • ALL
    • Query 2020-01-27, Query 2020-02-10, Query 2020-02-24, Query 2020-03-09
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    • 3
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      Repro:

      // on 4.0 create a validator with an invalid regex.
db.createCollection("c", {
    validator:
        {email: {$regex: "^*"}}
})
// Now start a 4.2 binary using same data files.

      The 4.2 binary will fail at startup with something like:

      [initandlisten] exception in
    initAndListen: Location51091: Regular expression is invalid: nothing to repeat,
    terminating

            Assignee:
            Ian Boros
            Reporter:
            Ian Boros
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            Watchers:
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              Created:
              Updated:
              Resolved: