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url
url(URL, format, structure) -から作成されたテーブルを返します URL 与えられたと
format と structure.
URL-HTTPまたはHTTPSサーバーアドレス。 GET および/または POST リクエスト
形式 - 形式 データの。
structure-テーブルの構造 'UserID UInt64, Name String' 形式。 列名と型を決定します。
例
-- getting the first 3 lines of a table that contains columns of String and UInt32 type from HTTP-server which answers in CSV format.
SELECT * FROM url('http://127.0.0.1:12345/', CSV, 'column1 String, column2 UInt32') LIMIT 3