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In this weeks episode we start off by congratulating Mick on handing in his masters dissertation.\nWe then move on to discuss decision trees, ordinal regression and genetic algorithms.\nEdd then mentions managing large tables in Postgres, MVCC, Fill factors and Vacuuming a table.\nFrom here we highlight an interesting JavaScript Unicode/New-Line length issue that occurred recently.\nFinally, we touch upon testing time-dependent processes in isolation, dreaded CRM integration and sign-up processes.\n\nCorrections: Couple of mistakes by Edd; its\u2019 MVCC not MVVC, and any character that can\u2019t be represented using 8 bits in PHP will have a strlen > 1.