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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.
。Feiyi对此有专业解读
Gold and silver flows disrupted as Iran war grounds flights
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為何美國以色列此刻出手？伊朗進入「生存模式」，結局仍充滿變數