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#semijoin — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #semijoin, aggregated by home.social.

  1. PrecisionSQL @[email protected] ·

    How to Use SEMI JOIN to Replace Slow EXISTS

    Optimizer can convert EXISTS to semi-join.

    #mysql #semijoin #exists #performance #howto #optimizer

    youtube.com/watch?v=8XgBaW-gDp0

    #mysql #semijoin #exists #performance #howto #optimizer