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Boring SQL

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    How SQL TABLESAMPLE Actually Picks Its Rows●Tablesample Picks RowsYhn420 d ago

    A new article on Boring SQL examines TABLESAMPLE, the SQL clause that samples rows from large tables, and explains how databases actually choose which rows are returned. The piece walks through the semantics that often surprise developers, since results are not truly random and behave differently across database engines. Readers on Hacker News are discussing the nuances and practical implications for analytics queries.