Hi, Following up on Tom's suggestion that Chapters 2 and 3 of the tutorial likewise lack introductory paragraphs, I've attached a patch that adds them.
Chapter 2 (The SQL Language) gets a paragraph summarizing tables, queries, joins, aggregates, and data modification. Chapter 3 (Advanced Features) gets a paragraph summarizing views, foreign keys, transactions, window functions, and inheritance. Regards, Dapeng Wang
0001-doc-add-introductory-paragraphs-to-tutorial-Chapters.patch
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