JSONCompactStringsEachRowWithNamesAndTypes

入力	出力	エイリアス
✔	✔

説明

JSONCompactEachRow フォーマットとは異なり、TabSeparatedWithNamesAndTypes と同様に、列名と型を示す 2 行のヘッダー行も出力します。

使用例

データの挿入

次のデータを含む JSON ファイルを football.json という名前で用意します：

["date", "season", "home_team", "away_team", "home_team_goals", "away_team_goals"]
["Date", "Int16", "LowCardinality(String)", "LowCardinality(String)", "Int8", "Int8"]
["2022-04-30", "2021", "Sutton United", "Bradford City", "1", "4"]
["2022-04-30", "2021", "Swindon Town", "Barrow", "2", "1"]
["2022-04-30", "2021", "Tranmere Rovers", "Oldham Athletic", "2", "0"]
["2022-05-02", "2021", "Port Vale", "Newport County", "1", "2"]
["2022-05-02", "2021", "Salford City", "Mansfield Town", "2", "2"]
["2022-05-07", "2021", "Barrow", "Northampton Town", "1", "3"]
["2022-05-07", "2021", "Bradford City", "Carlisle United", "2", "0"]
["2022-05-07", "2021", "Bristol Rovers", "Scunthorpe United", "7", "0"]
["2022-05-07", "2021", "Exeter City", "Port Vale", "0", "1"]
["2022-05-07", "2021", "Harrogate Town A.F.C.", "Sutton United", "0", "2"]
["2022-05-07", "2021", "Hartlepool United", "Colchester United", "0", "2"]
["2022-05-07", "2021", "Leyton Orient", "Tranmere Rovers", "0", "1"]
["2022-05-07", "2021", "Mansfield Town", "Forest Green Rovers", "2", "2"]
["2022-05-07", "2021", "Newport County", "Rochdale", "0", "2"]
["2022-05-07", "2021", "Oldham Athletic", "Crawley Town", "3", "3"]
["2022-05-07", "2021", "Stevenage Borough", "Salford City", "4", "2"]
["2022-05-07", "2021", "Walsall", "Swindon Town", "0", "3"]

データを挿入する：

INSERT INTO football FROM INFILE 'football.json' FORMAT JSONCompactStringsEachRowWithNamesAndTypes;

データの読み込み

JSONCompactStringsEachRowWithNamesAndTypes 形式を使用してデータを読み込みます。

SELECT *
FROM football
FORMAT JSONCompactStringsEachRowWithNamesAndTypes

出力は JSON 形式です。

["date", "season", "home_team", "away_team", "home_team_goals", "away_team_goals"]
["Date", "Int16", "LowCardinality(String)", "LowCardinality(String)", "Int8", "Int8"]
["2022-04-30", "2021", "Sutton United", "Bradford City", "1", "4"]
["2022-04-30", "2021", "Swindon Town", "Barrow", "2", "1"]
["2022-04-30", "2021", "Tranmere Rovers", "Oldham Athletic", "2", "0"]
["2022-05-02", "2021", "Port Vale", "Newport County", "1", "2"]
["2022-05-02", "2021", "Salford City", "Mansfield Town", "2", "2"]
["2022-05-07", "2021", "Barrow", "Northampton Town", "1", "3"]
["2022-05-07", "2021", "Bradford City", "Carlisle United", "2", "0"]
["2022-05-07", "2021", "Bristol Rovers", "Scunthorpe United", "7", "0"]
["2022-05-07", "2021", "Exeter City", "Port Vale", "0", "1"]
["2022-05-07", "2021", "Harrogate Town A.F.C.", "Sutton United", "0", "2"]
["2022-05-07", "2021", "Hartlepool United", "Colchester United", "0", "2"]
["2022-05-07", "2021", "Leyton Orient", "Tranmere Rovers", "0", "1"]
["2022-05-07", "2021", "Mansfield Town", "Forest Green Rovers", "2", "2"]
["2022-05-07", "2021", "Newport County", "Rochdale", "0", "2"]
["2022-05-07", "2021", "Oldham Athletic", "Crawley Town", "3", "3"]
["2022-05-07", "2021", "Stevenage Borough", "Salford City", "4", "2"]
["2022-05-07", "2021", "Walsall", "Swindon Town", "0", "3"]

フォーマット設定

注記

input_format_with_names_use_header の設定値が 1 の場合、 入力データの列は名前に基づいてテーブルの列にマッピングされます。input_format_skip_unknown_fields の設定値が 1 の場合、テーブル側に存在しない名前の列はスキップされます。 それ以外の場合は、最初の行がスキップされます。

注記

input_format_with_types_use_header の設定値が 1 の場合、 入力データの型は、テーブル内の対応する列の型と比較されます。そうでない場合は、2 行目がスキップされます。