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Sergei Petrunia’s blog Obervations made while working on MariaDB’s query optimizer Close collapsed Home Home Menu expanded Slides: MariaDB’s Join Optimizer: how it works and current fixes I’ve spent some time working on the join optimizer recently. Here are the slides covering MySQL/MariaDB join optimizer internals and the improvements that we have made or are making to it in MariaDB: MariaDB’s join optimizer: how it works and current fixes from Sergey Petrunya Jul 20 2022 MariaDB 10.9: SHOW ANALYZE and EXPLAIN FOR CONNECTION We’re trying to get two features into MariaDB 10.9: SHOW ANALYZE and EXPLAIN FOR CONNECTION. I’ve made a post about them in MariaDB Foundation’s blog: 10.9 preview feature: SHOW ANALYZE and EXPLAIN FOR CONNECTION support Mar 29 2022 Slides: improving selectivity estimates in MariaDB Slides from my talk at MariaDB Server Fest 2021 , “Improving MariaDB’s query optimizer with better selectivity estimates”, are here: Improving MariaDB’s Query Optimizer with better

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