JSONLines
| 입력 | 출력 | 별칭 |
|---|---|---|
| ✔ | ✔ | JSONEachRow, JSONLines, NDJSON, JSONL |
설명
이 형식에서는 ClickHouse가 각 행을 개별 JSON 객체(JSON Object)로 출력하며, 각 객체는 줄바꿈으로 구분됩니다.
이 형식은 JSONEachRow, NDJSON (Newline Delimited JSON), JSONL (JSONLines)로도 알려져 있습니다. 이 모든 이름은 동일한 형식의 별칭이며, 서로 바꿔 사용해도 됩니다.
사용 예
데이터 삽입
다음 데이터가 들어 있는 football.json이라는 JSON 파일을 사용합니다:
{"date":"2022-04-30","season":2021,"home_team":"Sutton United","away_team":"Bradford City","home_team_goals":1,"away_team_goals":4}
{"date":"2022-04-30","season":2021,"home_team":"Swindon Town","away_team":"Barrow","home_team_goals":2,"away_team_goals":1}
{"date":"2022-04-30","season":2021,"home_team":"Tranmere Rovers","away_team":"Oldham Athletic","home_team_goals":2,"away_team_goals":0}
{"date":"2022-05-02","season":2021,"home_team":"Port Vale","away_team":"Newport County","home_team_goals":1,"away_team_goals":2}
{"date":"2022-05-02","season":2021,"home_team":"Salford City","away_team":"Mansfield Town","home_team_goals":2,"away_team_goals":2}
{"date":"2022-05-07","season":2021,"home_team":"Barrow","away_team":"Northampton Town","home_team_goals":1,"away_team_goals":3}
{"date":"2022-05-07","season":2021,"home_team":"Bradford City","away_team":"Carlisle United","home_team_goals":2,"away_team_goals":0}
{"date":"2022-05-07","season":2021,"home_team":"Bristol Rovers","away_team":"Scunthorpe United","home_team_goals":7,"away_team_goals":0}
{"date":"2022-05-07","season":2021,"home_team":"Exeter City","away_team":"Port Vale","home_team_goals":0,"away_team_goals":1}
{"date":"2022-05-07","season":2021,"home_team":"Harrogate Town A.F.C.","away_team":"Sutton United","home_team_goals":0,"away_team_goals":2}
{"date":"2022-05-07","season":2021,"home_team":"Hartlepool United","away_team":"Colchester United","home_team_goals":0,"away_team_goals":2}
{"date":"2022-05-07","season":2021,"home_team":"Leyton Orient","away_team":"Tranmere Rovers","home_team_goals":0,"away_team_goals":1}
{"date":"2022-05-07","season":2021,"home_team":"Mansfield Town","away_team":"Forest Green Rovers","home_team_goals":2,"away_team_goals":2}
{"date":"2022-05-07","season":2021,"home_team":"Newport County","away_team":"Rochdale","home_team_goals":0,"away_team_goals":2}
{"date":"2022-05-07","season":2021,"home_team":"Oldham Athletic","away_team":"Crawley Town","home_team_goals":3,"away_team_goals":3}
{"date":"2022-05-07","season":2021,"home_team":"Stevenage Borough","away_team":"Salford City","home_team_goals":4,"away_team_goals":2}
{"date":"2022-05-07","season":2021,"home_team":"Walsall","away_team":"Swindon Town","home_team_goals":0,"away_team_goals":3}
데이터를 삽입하십시오.
INSERT INTO football FROM INFILE 'football.json' FORMAT JSONLines;
데이터 읽기
JSONLines 형식을 사용해 데이터를 읽습니다:
SELECT *
FROM football
FORMAT JSONLines
출력은 JSON 형식입니다:
{"date":"2022-04-30","season":2021,"home_team":"Sutton United","away_team":"Bradford City","home_team_goals":1,"away_team_goals":4}
{"date":"2022-04-30","season":2021,"home_team":"Swindon Town","away_team":"Barrow","home_team_goals":2,"away_team_goals":1}
{"date":"2022-04-30","season":2021,"home_team":"Tranmere Rovers","away_team":"Oldham Athletic","home_team_goals":2,"away_team_goals":0}
{"date":"2022-05-02","season":2021,"home_team":"Port Vale","away_team":"Newport County","home_team_goals":1,"away_team_goals":2}
{"date":"2022-05-02","season":2021,"home_team":"Salford City","away_team":"Mansfield Town","home_team_goals":2,"away_team_goals":2}
{"date":"2022-05-07","season":2021,"home_team":"Barrow","away_team":"Northampton Town","home_team_goals":1,"away_team_goals":3}
{"date":"2022-05-07","season":2021,"home_team":"Bradford City","away_team":"Carlisle United","home_team_goals":2,"away_team_goals":0}
{"date":"2022-05-07","season":2021,"home_team":"Bristol Rovers","away_team":"Scunthorpe United","home_team_goals":7,"away_team_goals":0}
{"date":"2022-05-07","season":2021,"home_team":"Exeter City","away_team":"Port Vale","home_team_goals":0,"away_team_goals":1}
{"date":"2022-05-07","season":2021,"home_team":"Harrogate Town A.F.C.","away_team":"Sutton United","home_team_goals":0,"away_team_goals":2}
{"date":"2022-05-07","season":2021,"home_team":"Hartlepool United","away_team":"Colchester United","home_team_goals":0,"away_team_goals":2}
{"date":"2022-05-07","season":2021,"home_team":"Leyton Orient","away_team":"Tranmere Rovers","home_team_goals":0,"away_team_goals":1}
{"date":"2022-05-07","season":2021,"home_team":"Mansfield Town","away_team":"Forest Green Rovers","home_team_goals":2,"away_team_goals":2}
{"date":"2022-05-07","season":2021,"home_team":"Newport County","away_team":"Rochdale","home_team_goals":0,"away_team_goals":2}
{"date":"2022-05-07","season":2021,"home_team":"Oldham Athletic","away_team":"Crawley Town","home_team_goals":3,"away_team_goals":3}
{"date":"2022-05-07","season":2021,"home_team":"Stevenage Borough","away_team":"Salford City","home_team_goals":4,"away_team_goals":2}
{"date":"2022-05-07","season":2021,"home_team":"Walsall","away_team":"Swindon Town","home_team_goals":0,"away_team_goals":3}
이름을 알 수 없는 데이터 컬럼은 설정 input_format_skip_unknown_fields를 1로 설정한 경우 가져오는 과정에서 건너뜁니다.
