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  1. MariaDB Server
  2. MDEV-39836

Optimizer Trace Replay

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    • Optimizer Trace Replay

    Description

      MDEV-27189 (Dec 2021) was the original umbrella, closed as a duplicate of MDEV-38701 in March 2026. As MDEV-38701 was a sprint-scoped task and hard to repurpose, this Epic now serves as the feature-level umbrella.

      So the team officially handed the umbrella role to MDEV-38701.
      Phase steps:

      • MDEV-36483 — step #1 dump DDLs of tables/views
      • MDEV-36511 — step #2 dump basic statistics
      • MDEV-36523 — step #3 load basic statistics back (split into MDEV-38700, MDEV-38701, MDEV-38781, MDEV-38805)
      • MDEV-37271 — dump and load statistics part 2
      • TODO-5462 — "Review for Optimizer Trace replay MDEVs" — OPEN but scope-bound: only covers reviews for three issues that are all already CLOSED. Not the feature umbrella.
      • TODO-5939 — 13.0 preview release, CLOSED. Not feature-scoped.

      Since it was hard to change MDEV-38701, this epic has been created to ease the PM follow-up.

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            psergei Sergei Petrunia
            ralf.gebhardt Ralf Gebhardt
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