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URL
url(URL, format, structure) - retourne une table créée à partir du URL avec le
format et structure.
URL-adresse du serveur HTTP ou HTTPS, qui peut accepter GET et/ou POST demande.
format - format des données.
structure - structure de table dans 'UserID UInt64, Name String' format. Détermine les noms et les types de colonnes.
Exemple
-- 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