Challenge: identify this pattern in datadir

You take a look at someone’s MySQL (or MariaDB) data directory, and see

bar -> foo

  1. What’s the issue? Identify pattern.
  2. What does it mean?  Consequences.
  3. Is there any way it can be safe and useful/usable? Describe.

Good luck!

3 thoughts on “Challenge: identify this pattern in datadir”

  1. Hi,

    Haven’t tried this at home; would assume duplicate yet identical database;
    The kind of things that can only mean trouble, though: not to be used as some kind of magic trick-solution-hack-workaround.

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