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  1. MariaDB Server
  2. MDEV-3251

LP:615752 - Subquery caching is not visible in EXPLAIN

        Details

        • Type: Bug
        • Status: Closed
        • Priority: Major
        • Resolution: Fixed
        • Affects Version/s: None
        • Fix Version/s: None
        • Component/s: None
        • Labels:

          Description

          As discussed on the dev meeting, it is imperative that all optimizations are visible one way or another. Subquery caching is currently only detectable via SHOW STATUS LIKE 'Subquery_cache_hit' which does not scale well for automatic testing.

          Instead "Using subquery cache" must be present in the Notes section of EXPLAIN , or alternatively some indication must be given in EXPLAIN EXTENDED.

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                ratzpo Rasmus Johansson added a comment -

                Launchpad bug id: 615752

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                ratzpo Rasmus Johansson added a comment - Launchpad bug id: 615752

                  People

                  • Assignee:
                    sanja Oleksandr Byelkin
                    Reporter:
                    philipstoev Philip Stoev
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                    • Created:
                      Updated:
                      Resolved: