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  1. MariaDB ColumnStore
  2. MCOL-2035

Some regr_*** tests aren't deterministic so comparisons are iffy. RANK()

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    Details

    • Type: Bug
    • Status: Closed (View Workflow)
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: 1.2.2
    • Fix Version/s: 1.2.4
    • Component/s: ExeMgr
    • Labels:
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      Description

      Some of the tests for analytic use of the regr_*** functions are testing nesting the analytic inside another Window Function. These use RANK as the Window Function. For some tests, all the results of the nested regr_*** function are the same – perhaps all NULL, or all 0.0000 or something. In these cases, RANK can rank them in any order and thus is non-deterministic.

      All our regression tests need to be deterministic as we decide pass or fail based on a simple compare to a reference.

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            Assignee:
            David.Hall David Hall
            Reporter:
            David.Hall David Hall
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