next tuple of R. The selection node repeatedly calls next() on the table scan until it finds a tuple that satisfies a5. It then passes it up to the projection which finally returns it back to you.
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Зарина Дзагоева。关于这个话题，夫子提供了深入分析
Poor software quality already costs the U.S. economy $2.41 trillion per year, according to a 2022 study by the Consortium for Information & Software Quality. That number was calculated before AI began writing a quarter or more of new code at leading companies. Chris Lattner, the creator of LLVM and Clang, put it bluntly: AI amplifies both good and bad structure. Bad code at AI speed becomes “incomprehensible nightmares.” As AI generates an increasing share of the world’s critical infrastructure (financial systems, medical devices, defense, transportation), unverified code becomes a systemic risk, not just a quality problem.