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  1. Core Server
  2. SERVER-71692

Test histograms with extreme numeric values

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    • Type: Icon: Task Task
    • Resolution: Fixed
    • Priority: Icon: Major - P3 Major - P3
    • 6.3.0-rc0
    • Affects Version/s: None
    • Component/s: None
    • None
    • Query Optimization
    • Fully Compatible

      We should have integration and/or unit tests that exercise the following scenarios in histogram generation and in estimation of predicates:

      • minimum and maximum values for each type (most importantly numeric)
      • inf/NaN/invalid values- if we can insert these into a collection, we have to make sure we handle them correctly during bucket creation/estimation
      • a wide range of values including extreme types
      • extreme date/time values
      • Decimal128 types that are too large to fit in a double
      • very large arrays
      • very large strings

      We need to ensure both that histogram creation on these types results in a valid histogram, and that cardinality estimation for these values (both when present and when absent from a histogram) works adequately.

            Assignee:
            ben.shteinfeld@mongodb.com Ben Shteinfeld
            Reporter:
            alya.berciu@mongodb.com Alya Berciu
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              Created:
              Updated:
              Resolved: