Here are links to a few things we mentioned: Three-valued_logic (Wikipedia)Postgres 15 improves UNIQUE and NULL (blog post by Ryan Lambert) Practical SQL for Data Analysis — Interpolation (blog post by Haki Benita) What is the deal with NULLs? (blog post by Jeff Davis) NULL in SQL: Indicating the Absence of Data (Markus Winand on Modern SQL) The Art of PostgreSQL (book by Dimitri Fontaine) ------------------------What did you like or not like? What should we discuss next time? Let us know by tweeting us on @samokhvalov and @michristofidesIf you would like to share this episode, here's a good link (and thank you!)Postgres FM is brought to you by:Nikolay Samokhvalov, founder of Postgres.aiMichael Christofides, founder of pgMustardWith special thanks to:Jessie Draws for the elephant artwork

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