$const folding in $add expression in $bucketAuto groupBy changes number of buckets

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    • Type: Bug
    • Resolution: Duplicate
    • Priority: Major - P3
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    • Affects Version/s: None
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    • Query Optimization
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      See linked repro test file + comment on linked BF- this is a reduced version of the linked fuzzer failure.

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      See linked repro test file + comment on linked BF- this is a reduced version of the linked fuzzer failure.
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      {$bucketAuto: {
   groupBy: {$add: [
      {$const: {NumberLong("9223372036854775807")}},
      "$measurement7",
      {$const: 24784}]},
   buckets: 5,
}}

      optimizes to:

      {$bucketAuto: {
   groupBy: {$add: ["$measurement7", {$const: 9223372036854800000}]},
   buckets: 5,
}}

      which ends up producing just one bucket instead of two.

       

        1. agg_fuzzer-5ec9-1654237153413-2.js
          262 kB

            Assignee:
            [DO NOT USE] Backlog - Query Optimization
            Reporter:
            Alya Berciu
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              Created:
              Updated:
              Resolved: