探索ClickHouse——同时支持导入导出功能的文件格式

在《探索ClickHouse——安装和测试》中，我们使用clickhouse直接从文件中读取数据。clickhouse支持多种格式文件的导入导出，本节我们对此进行分类介绍。

按常见格式区分

JSON

原始的JSON格式只支持导入，不支持导入。同时支持导入和导出的是其他几种类型：

JSONEachRow

{"uuid_string":"{D22473F5-3802-7B40-E053-6C04A8C0A630}","price_string":"230000","time":"2021-06-09 00:00","postcode":"CO13 0PQ","a":"D","b":"N","c":"F","addr1":"4","addr2":"","street":"BELLAMY CLOSE","locality":"KIRBY CROSS","town":"FRINTON-ON-SEA","district":"TENDRING","county":"ESSEX","d":"A","e":"A"}
{"uuid_string":"{D22473F5-3803-7B40-E053-6C04A8C0A630}","price_string":"700000","time":"2021-06-25 00:00","postcode":"IG10 4BS","a":"T","b":"N","c":"F","addr1":"70","addr2":"","street":"SMARTS LANE","locality":"","town":"LOUGHTON","district":"EPPING FOREST","county":"ESSEX","d":"A","e":"A"}
{"uuid_string":"{D22473F5-3804-7B40-E053-6C04A8C0A630}","price_string":"625000","time":"2021-06-28 00:00","postcode":"EN9 1LH","a":"S","b":"N","c":"F","addr1":"7","addr2":"","street":"THE COBBINS","locality":"","town":"WALTHAM ABBEY","district":"EPPING FOREST","county":"ESSEX","d":"A","e":"A"}
{"uuid_string":"{D22473F5-3805-7B40-E053-6C04A8C0A630}","price_string":"360000","time":"2021-02-17 00:00","postcode":"SS9 3AU","a":"S","b":"N","c":"F","addr1":"117","addr2":"","street":"FLEMMING AVENUE","locality":"","town":"LEIGH-ON-SEA","district":"SOUTHEND-ON-SEA","county":"SOUTHEND-ON-SEA","d":"A","e":"A"}
{"uuid_string":"{D22473F5-3806-7B40-E053-6C04A8C0A630}","price_string":"345000","time":"2021-06-25 00:00","postcode":"SS15 6BG","a":"S","b":"N","c":"F","addr1":"2","addr2":"","street":"BROADWATER GREEN","locality":"LAINDON","town":"BASILDON","district":"BASILDON","county":"ESSEX","d":"A","e":"A"}
{"uuid_string":"{D22473F5-3807-7B40-E053-6C04A8C0A630}","price_string":"220000","time":"2021-08-20 00:00","postcode":"CO7 0HE","a":"S","b":"N","c":"F","addr1":"133","addr2":"","street":"CHAPEL ROAD","locality":"BRIGHTLINGSEA","town":"COLCHESTER","district":"TENDRING","county":"ESSEX","d":"A","e":"A"}
{"uuid_string":"{D22473F5-3808-7B40-E053-6C04A8C0A630}","price_string":"362000","time":"2021-06-29 00:00","postcode":"SS15 4AX","a":"T","b":"N","c":"F","addr1":"32","addr2":"","street":"CROUCH STREET","locality":"","town":"BASILDON","district":"BASILDON","county":"ESSEX","d":"A","e":"A"}
{"uuid_string":"{D22473F5-3809-7B40-E053-6C04A8C0A630}","price_string":"300000","time":"2021-06-25 00:00","postcode":"CM9 6EP","a":"T","b":"N","c":"F","addr1":"58","addr2":"","street":"ORCHARD ROAD","locality":"","town":"MALDON","district":"MALDON","county":"ESSEX","d":"A","e":"A"}
{"uuid_string":"{D22473F5-380A-7B40-E053-6C04A8C0A630}","price_string":"300000","time":"2021-06-17 00:00","postcode":"SS4 3AR","a":"T","b":"N","c":"F","addr1":"32","addr2":"","street":"ALLERTON CLOSE","locality":"","town":"ROCHFORD","district":"ROCHFORD","county":"ESSEX","d":"A","e":"A"}
{"uuid_string":"{D22473F5-380B-7B40-E053-6C04A8C0A630}","price_string":"535000","time":"2021-10-22 00:00","postcode":"SS9 1PZ","a":"T","b":"N","c":"F","addr1":"113","addr2":"","street":"LEIGHTON AVENUE","locality":"","town":"LEIGH-ON-SEA","district":"SOUTHEND-ON-SEA","county":"SOUTHEND-ON-SEA","d":"A","e":"A"}
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JSONStringsEachRow

{"uuid_string":"{D22473F5-3802-7B40-E053-6C04A8C0A630}","price_string":"230000","time":"2021-06-09 00:00","postcode":"CO13 0PQ","a":"D","b":"N","c":"F","addr1":"4","addr2":"","street":"BELLAMY CLOSE","locality":"KIRBY CROSS","town":"FRINTON-ON-SEA","district":"TENDRING","county":"ESSEX","d":"A","e":"A"}
{"uuid_string":"{D22473F5-3803-7B40-E053-6C04A8C0A630}","price_string":"700000","time":"2021-06-25 00:00","postcode":"IG10 4BS","a":"T","b":"N","c":"F","addr1":"70","addr2":"","street":"SMARTS LANE","locality":"","town":"LOUGHTON","district":"EPPING FOREST","county":"ESSEX","d":"A","e":"A"}
{"uuid_string":"{D22473F5-3804-7B40-E053-6C04A8C0A630}","price_string":"625000","time":"2021-06-28 00:00","postcode":"EN9 1LH","a":"S","b":"N","c":"F","addr1":"7","addr2":"","street":"THE COBBINS","locality":"","town":"WALTHAM ABBEY","district":"EPPING FOREST","county":"ESSEX","d":"A","e":"A"}
{"uuid_string":"{D22473F5-3805-7B40-E053-6C04A8C0A630}","price_string":"360000","time":"2021-02-17 00:00","postcode":"SS9 3AU","a":"S","b":"N","c":"F","addr1":"117","addr2":"","street":"FLEMMING AVENUE","locality":"","town":"LEIGH-ON-SEA","district":"SOUTHEND-ON-SEA","county":"SOUTHEND-ON-SEA","d":"A","e":"A"}
{"uuid_string":"{D22473F5-3806-7B40-E053-6C04A8C0A630}","price_string":"345000","time":"2021-06-25 00:00","postcode":"SS15 6BG","a":"S","b":"N","c":"F","addr1":"2","addr2":"","street":"BROADWATER GREEN","locality":"LAINDON","town":"BASILDON","district":"BASILDON","county":"ESSEX","d":"A","e":"A"}
{"uuid_string":"{D22473F5-3807-7B40-E053-6C04A8C0A630}","price_string":"220000","time":"2021-08-20 00:00","postcode":"CO7 0HE","a":"S","b":"N","c":"F","addr1":"133","addr2":"","street":"CHAPEL ROAD","locality":"BRIGHTLINGSEA","town":"COLCHESTER","district":"TENDRING","county":"ESSEX","d":"A","e":"A"}
{"uuid_string":"{D22473F5-3808-7B40-E053-6C04A8C0A630}","price_string":"362000","time":"2021-06-29 00:00","postcode":"SS15 4AX","a":"T","b":"N","c":"F","addr1":"32","addr2":"","street":"CROUCH STREET","locality":"","town":"BASILDON","district":"BASILDON","county":"ESSEX","d":"A","e":"A"}
{"uuid_string":"{D22473F5-3809-7B40-E053-6C04A8C0A630}","price_string":"300000","time":"2021-06-25 00:00","postcode":"CM9 6EP","a":"T","b":"N","c":"F","addr1":"58","addr2":"","street":"ORCHARD ROAD","locality":"","town":"MALDON","district":"MALDON","county":"ESSEX","d":"A","e":"A"}
{"uuid_string":"{D22473F5-380A-7B40-E053-6C04A8C0A630}","price_string":"300000","time":"2021-06-17 00:00","postcode":"SS4 3AR","a":"T","b":"N","c":"F","addr1":"32","addr2":"","street":"ALLERTON CLOSE","locality":"","town":"ROCHFORD","district":"ROCHFORD","county":"ESSEX","d":"A","e":"A"}
{"uuid_string":"{D22473F5-380B-7B40-E053-6C04A8C0A630}","price_string":"535000","time":"2021-10-22 00:00","postcode":"SS9 1PZ","a":"T","b":"N","c":"F","addr1":"113","addr2":"","street":"LEIGHTON AVENUE","locality":"","town":"LEIGH-ON-SEA","district":"SOUTHEND-ON-SEA","county":"SOUTHEND-ON-SEA","d":"A","e":"A"}
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JSONCompactEachRow

["{D22473F5-3802-7B40-E053-6C04A8C0A630}", "230000", "2021-06-09 00:00", "CO13 0PQ", "D", "N", "F", "4", "", "BELLAMY CLOSE", "KIRBY CROSS", "FRINTON-ON-SEA", "TENDRING", "ESSEX", "A", "A"]
["{D22473F5-3803-7B40-E053-6C04A8C0A630}", "700000", "2021-06-25 00:00", "IG10 4BS", "T", "N", "F", "70", "", "SMARTS LANE", "", "LOUGHTON", "EPPING FOREST", "ESSEX", "A", "A"]
["{D22473F5-3804-7B40-E053-6C04A8C0A630}", "625000", "2021-06-28 00:00", "EN9 1LH", "S", "N", "F", "7", "", "THE COBBINS", "", "WALTHAM ABBEY", "EPPING FOREST", "ESSEX", "A", "A"]
["{D22473F5-3805-7B40-E053-6C04A8C0A630}", "360000", "2021-02-17 00:00", "SS9 3AU", "S", "N", "F", "117", "", "FLEMMING AVENUE", "", "LEIGH-ON-SEA", "SOUTHEND-ON-SEA", "SOUTHEND-ON-SEA", "A", "A"]
["{D22473F5-3806-7B40-E053-6C04A8C0A630}", "345000", "2021-06-25 00:00", "SS15 6BG", "S", "N", "F", "2", "", "BROADWATER GREEN", "LAINDON", "BASILDON", "BASILDON", "ESSEX", "A", "A"]
["{D22473F5-3807-7B40-E053-6C04A8C0A630}", "220000", "2021-08-20 00:00", "CO7 0HE", "S", "N", "F", "133", "", "CHAPEL ROAD", "BRIGHTLINGSEA", "COLCHESTER", "TENDRING", "ESSEX", "A", "A"]
["{D22473F5-3808-7B40-E053-6C04A8C0A630}", "362000", "2021-06-29 00:00", "SS15 4AX", "T", "N", "F", "32", "", "CROUCH STREET", "", "BASILDON", "BASILDON", "ESSEX", "A", "A"]
["{D22473F5-3809-7B40-E053-6C04A8C0A630}", "300000", "2021-06-25 00:00", "CM9 6EP", "T", "N", "F", "58", "", "ORCHARD ROAD", "", "MALDON", "MALDON", "ESSEX", "A", "A"]
["{D22473F5-380A-7B40-E053-6C04A8C0A630}", "300000", "2021-06-17 00:00", "SS4 3AR", "T", "N", "F", "32", "", "ALLERTON CLOSE", "", "ROCHFORD", "ROCHFORD", "ESSEX", "A", "A"]
["{D22473F5-380B-7B40-E053-6C04A8C0A630}", "535000", "2021-10-22 00:00", "SS9 1PZ", "T", "N", "F", "113", "", "LEIGHTON AVENUE", "", "LEIGH-ON-SEA", "SOUTHEND-ON-SEA", "SOUTHEND-ON-SEA", "A", "A"]
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JSONCompactStringsEachRow

["{D22473F5-3802-7B40-E053-6C04A8C0A630}", "230000", "2021-06-09 00:00", "CO13 0PQ", "D", "N", "F", "4", "", "BELLAMY CLOSE", "KIRBY CROSS", "FRINTON-ON-SEA", "TENDRING", "ESSEX", "A", "A"]
["{D22473F5-3803-7B40-E053-6C04A8C0A630}", "700000", "2021-06-25 00:00", "IG10 4BS", "T", "N", "F", "70", "", "SMARTS LANE", "", "LOUGHTON", "EPPING FOREST", "ESSEX", "A", "A"]
["{D22473F5-3804-7B40-E053-6C04A8C0A630}", "625000", "2021-06-28 00:00", "EN9 1LH", "S", "N", "F", "7", "", "THE COBBINS", "", "WALTHAM ABBEY", "EPPING FOREST", "ESSEX", "A", "A"]
["{D22473F5-3805-7B40-E053-6C04A8C0A630}", "360000", "2021-02-17 00:00", "SS9 3AU", "S", "N", "F", "117", "", "FLEMMING AVENUE", "", "LEIGH-ON-SEA", "SOUTHEND-ON-SEA", "SOUTHEND-ON-SEA", "A", "A"]
["{D22473F5-3806-7B40-E053-6C04A8C0A630}", "345000", "2021-06-25 00:00", "SS15 6BG", "S", "N", "F", "2", "", "BROADWATER GREEN", "LAINDON", "BASILDON", "BASILDON", "ESSEX", "A", "A"]
["{D22473F5-3807-7B40-E053-6C04A8C0A630}", "220000", "2021-08-20 00:00", "CO7 0HE", "S", "N", "F", "133", "", "CHAPEL ROAD", "BRIGHTLINGSEA", "COLCHESTER", "TENDRING", "ESSEX", "A", "A"]
["{D22473F5-3808-7B40-E053-6C04A8C0A630}", "362000", "2021-06-29 00:00", "SS15 4AX", "T", "N", "F", "32", "", "CROUCH STREET", "", "BASILDON", "BASILDON", "ESSEX", "A", "A"]
["{D22473F5-3809-7B40-E053-6C04A8C0A630}", "300000", "2021-06-25 00:00", "CM9 6EP", "T", "N", "F", "58", "", "ORCHARD ROAD", "", "MALDON", "MALDON", "ESSEX", "A", "A"]
["{D22473F5-380A-7B40-E053-6C04A8C0A630}", "300000", "2021-06-17 00:00", "SS4 3AR", "T", "N", "F", "32", "", "ALLERTON CLOSE", "", "ROCHFORD", "ROCHFORD", "ESSEX", "A", "A"]
["{D22473F5-380B-7B40-E053-6C04A8C0A630}", "535000", "2021-10-22 00:00", "SS9 1PZ", "T", "N", "F", "113", "", "LEIGHTON AVENUE", "", "LEIGH-ON-SEA", "SOUTHEND-ON-SEA", "SOUTHEND-ON-SEA", "A", "A"]
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按分隔符

TabSeparated

{D22473F5-3802-7B40-E053-6C04A8C0A630}  230000  2021-06-09 00:00        CO13 0PQ        D       N       F       4               BELLAMY CLOSE   KIRBY CROSS     FRINTON-ON-SEA  TENDRING        ESSEX   A       A
{D22473F5-3803-7B40-E053-6C04A8C0A630}  700000  2021-06-25 00:00        IG10 4BS        T       N       F       70              SMARTS LANE             LOUGHTON        EPPING FOREST   ESSEX   A       A
{D22473F5-3804-7B40-E053-6C04A8C0A630}  625000  2021-06-28 00:00        EN9 1LH S       N       F       7               THE COBBINS             WALTHAM ABBEY   EPPING FOREST   ESSEX   A       A
{D22473F5-3805-7B40-E053-6C04A8C0A630}  360000  2021-02-17 00:00        SS9 3AU S       N       F       117             FLEMMING AVENUE         LEIGH-ON-SEA    SOUTHEND-ON-SEA SOUTHEND-ON-SEA A       A
{D22473F5-3806-7B40-E053-6C04A8C0A630}  345000  2021-06-25 00:00        SS15 6BG        S       N       F       2               BROADWATER GREEN        LAINDON BASILDON        BASILDON        ESSEX   A       A
{D22473F5-3807-7B40-E053-6C04A8C0A630}  220000  2021-08-20 00:00        CO7 0HE S       N       F       133             CHAPEL ROAD     BRIGHTLINGSEA   COLCHESTER      TENDRING        ESSEX   A       A
{D22473F5-3808-7B40-E053-6C04A8C0A630}  362000  2021-06-29 00:00        SS15 4AX        T       N       F       32              CROUCH STREET           BASILDON        BASILDON        ESSEX   A       A
{D22473F5-3809-7B40-E053-6C04A8C0A630}  300000  2021-06-25 00:00        CM9 6EP T       N       F       58              ORCHARD ROAD            MALDON  MALDON  ESSEX   A       A
{D22473F5-380A-7B40-E053-6C04A8C0A630}  300000  2021-06-17 00:00        SS4 3AR T       N       F       32              ALLERTON CLOSE          ROCHFORD        ROCHFORD        ESSEX   A       A
{D22473F5-380B-7B40-E053-6C04A8C0A630}  535000  2021-10-22 00:00        SS9 1PZ T       N       F       113             LEIGHTON AVENUE         LEIGH-ON-SEA    SOUTHEND-ON-SEA SOUTHEND-ON-SEA A       A
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CSV

"{D22473F5-3802-7B40-E053-6C04A8C0A630}","230000","2021-06-09 00:00","CO13 0PQ","D","N","F","4","","BELLAMY CLOSE","KIRBY CROSS","FRINTON-ON-SEA","TENDRING","ESSEX","A","A"
"{D22473F5-3803-7B40-E053-6C04A8C0A630}","700000","2021-06-25 00:00","IG10 4BS","T","N","F","70","","SMARTS LANE","","LOUGHTON","EPPING FOREST","ESSEX","A","A"
"{D22473F5-3804-7B40-E053-6C04A8C0A630}","625000","2021-06-28 00:00","EN9 1LH","S","N","F","7","","THE COBBINS","","WALTHAM ABBEY","EPPING FOREST","ESSEX","A","A"
"{D22473F5-3805-7B40-E053-6C04A8C0A630}","360000","2021-02-17 00:00","SS9 3AU","S","N","F","117","","FLEMMING AVENUE","","LEIGH-ON-SEA","SOUTHEND-ON-SEA","SOUTHEND-ON-SEA","A","A"
"{D22473F5-3806-7B40-E053-6C04A8C0A630}","345000","2021-06-25 00:00","SS15 6BG","S","N","F","2","","BROADWATER GREEN","LAINDON","BASILDON","BASILDON","ESSEX","A","A"
"{D22473F5-3807-7B40-E053-6C04A8C0A630}","220000","2021-08-20 00:00","CO7 0HE","S","N","F","133","","CHAPEL ROAD","BRIGHTLINGSEA","COLCHESTER","TENDRING","ESSEX","A","A"
"{D22473F5-3808-7B40-E053-6C04A8C0A630}","362000","2021-06-29 00:00","SS15 4AX","T","N","F","32","","CROUCH STREET","","BASILDON","BASILDON","ESSEX","A","A"
"{D22473F5-3809-7B40-E053-6C04A8C0A630}","300000","2021-06-25 00:00","CM9 6EP","T","N","F","58","","ORCHARD ROAD","","MALDON","MALDON","ESSEX","A","A"
"{D22473F5-380A-7B40-E053-6C04A8C0A630}","300000","2021-06-17 00:00","SS4 3AR","T","N","F","32","","ALLERTON CLOSE","","ROCHFORD","ROCHFORD","ESSEX","A","A"
"{D22473F5-380B-7B40-E053-6C04A8C0A630}","535000","2021-10-22 00:00","SS9 1PZ","T","N","F","113","","LEIGHTON AVENUE","","LEIGH-ON-SEA","SOUTHEND-ON-SEA","SOUTHEND-ON-SEA","A","A"
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Values

(‘{D22473F5-3802-7B40-E053-6C04A8C0A630}’,‘230000’,‘2021-06-09 00:00’,‘CO13 0PQ’,‘D’,‘N’,‘F’,‘4’,‘’,‘BELLAMY CLOSE’,‘KIRBY CROSS’,‘FRINTON-ON-SEA’,‘TENDRING’,‘ESSEX’,‘A’,‘A’),(‘{D22473F5-3803-7B40-E053-6C04A8C0A630}’,‘700000’,‘2021-06-25 00:00’,‘IG10 4BS’,‘T’,‘N’,‘F’,‘70’,‘’,‘SMARTS LANE’,‘’,‘LOUGHTON’,‘EPPING FOREST’,‘ESSEX’,‘A’,‘A’),(‘{D22473F5-3804-7B40-E053-6C04A8C0A630}’,‘625000’,‘2021-06-28 00:00’,‘EN9 1LH’,‘S’,‘N’,‘F’,‘7’,‘’,‘THE COBBINS’,‘’,‘WALTHAM ABBEY’,‘EPPING FOREST’,‘ESSEX’,‘A’,‘A’),(‘{D22473F5-3805-7B40-E053-6C04A8C0A630}’,‘360000’,‘2021-02-17 00:00’,‘SS9 3AU’,‘S’,‘N’,‘F’,‘117’,‘’,‘FLEMMING AVENUE’,‘’,‘LEIGH-ON-SEA’,‘SOUTHEND-ON-SEA’,‘SOUTHEND-ON-SEA’,‘A’,‘A’),(‘{D22473F5-3806-7B40-E053-6C04A8C0A630}’,‘345000’,‘2021-06-25 00:00’,‘SS15 6BG’,‘S’,‘N’,‘F’,‘2’,‘’,‘BROADWATER GREEN’,‘LAINDON’,‘BASILDON’,‘BASILDON’,‘ESSEX’,‘A’,‘A’),(‘{D22473F5-3807-7B40-E053-6C04A8C0A630}’,‘220000’,‘2021-08-20 00:00’,‘CO7 0HE’,‘S’,‘N’,‘F’,‘133’,‘’,‘CHAPEL ROAD’,‘BRIGHTLINGSEA’,‘COLCHESTER’,‘TENDRING’,‘ESSEX’,‘A’,‘A’),(‘{D22473F5-3808-7B40-E053-6C04A8C0A630}’,‘362000’,‘2021-06-29 00:00’,‘SS15 4AX’,‘T’,‘N’,‘F’,‘32’,‘’,‘CROUCH STREET’,‘’,‘BASILDON’,‘BASILDON’,‘ESSEX’,‘A’,‘A’),(‘{D22473F5-3809-7B40-E053-6C04A8C0A630}’,‘300000’,‘2021-06-25 00:00’,‘CM9 6EP’,‘T’,‘N’,‘F’,‘58’,‘’,‘ORCHARD ROAD’,‘’,‘MALDON’,‘MALDON’,‘ESSEX’,‘A’,‘A’),(‘{D22473F5-380A-7B40-E053-6C04A8C0A630}’,‘300000’,‘2021-06-17 00:00’,‘SS4 3AR’,‘T’,‘N’,‘F’,‘32’,‘’,‘ALLERTON CLOSE’,‘’,‘ROCHFORD’,‘ROCHFORD’,‘ESSEX’,‘A’,‘A’),(‘{D22473F5-380B-7B40-E053-6C04A8C0A630}’,‘535000’,‘2021-10-22 00:00’,‘SS9 1PZ’,‘T’,‘N’,‘F’,‘113’,‘’,‘LEIGHTON AVENUE’,‘’,‘LEIGH-ON-SEA’,‘SOUTHEND-ON-SEA’,‘SOUTHEND-ON-SEA’,‘A’,‘A’)

按携带更多信息

只携带字段名

TabSeparatedWithNames

uuid_string     price_string    time    postcode        a       b       c       addr1   addr2   street  locality        town    district        county  d       e
{D22473F5-3802-7B40-E053-6C04A8C0A630}  230000  2021-06-09 00:00        CO13 0PQ        D       N       F       4               BELLAMY CLOSE   KIRBY CROSS     FRINTON-ON-SEA  TENDRING        ESSEX   A       A
{D22473F5-3803-7B40-E053-6C04A8C0A630}  700000  2021-06-25 00:00        IG10 4BS        T       N       F       70              SMARTS LANE             LOUGHTON        EPPING FOREST   ESSEX   A       A
{D22473F5-3804-7B40-E053-6C04A8C0A630}  625000  2021-06-28 00:00        EN9 1LH S       N       F       7               THE COBBINS             WALTHAM ABBEY   EPPING FOREST   ESSEX   A       A
{D22473F5-3805-7B40-E053-6C04A8C0A630}  360000  2021-02-17 00:00        SS9 3AU S       N       F       117             FLEMMING AVENUE         LEIGH-ON-SEA    SOUTHEND-ON-SEA SOUTHEND-ON-SEA A       A
{D22473F5-3806-7B40-E053-6C04A8C0A630}  345000  2021-06-25 00:00        SS15 6BG        S       N       F       2               BROADWATER GREEN        LAINDON BASILDON        BASILDON        ESSEX   A       A
{D22473F5-3807-7B40-E053-6C04A8C0A630}  220000  2021-08-20 00:00        CO7 0HE S       N       F       133             CHAPEL ROAD     BRIGHTLINGSEA   COLCHESTER      TENDRING        ESSEX   A       A
{D22473F5-3808-7B40-E053-6C04A8C0A630}  362000  2021-06-29 00:00        SS15 4AX        T       N       F       32              CROUCH STREET           BASILDON        BASILDON        ESSEX   A       A
{D22473F5-3809-7B40-E053-6C04A8C0A630}  300000  2021-06-25 00:00        CM9 6EP T       N       F       58              ORCHARD ROAD            MALDON  MALDON  ESSEX   A       A
{D22473F5-380A-7B40-E053-6C04A8C0A630}  300000  2021-06-17 00:00        SS4 3AR T       N       F       32              ALLERTON CLOSE          ROCHFORD        ROCHFORD        ESSEX   A       A
{D22473F5-380B-7B40-E053-6C04A8C0A630}  535000  2021-10-22 00:00        SS9 1PZ T       N       F       113             LEIGHTON AVENUE         LEIGH-ON-SEA    SOUTHEND-ON-SEA SOUTHEND-ON-SEA A       A
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CSVWithNames

"uuid_string","price_string","time","postcode","a","b","c","addr1","addr2","street","locality","town","district","county","d","e"
"{D22473F5-3802-7B40-E053-6C04A8C0A630}","230000","2021-06-09 00:00","CO13 0PQ","D","N","F","4","","BELLAMY CLOSE","KIRBY CROSS","FRINTON-ON-SEA","TENDRING","ESSEX","A","A"
"{D22473F5-3803-7B40-E053-6C04A8C0A630}","700000","2021-06-25 00:00","IG10 4BS","T","N","F","70","","SMARTS LANE","","LOUGHTON","EPPING FOREST","ESSEX","A","A"
"{D22473F5-3804-7B40-E053-6C04A8C0A630}","625000","2021-06-28 00:00","EN9 1LH","S","N","F","7","","THE COBBINS","","WALTHAM ABBEY","EPPING FOREST","ESSEX","A","A"
"{D22473F5-3805-7B40-E053-6C04A8C0A630}","360000","2021-02-17 00:00","SS9 3AU","S","N","F","117","","FLEMMING AVENUE","","LEIGH-ON-SEA","SOUTHEND-ON-SEA","SOUTHEND-ON-SEA","A","A"
"{D22473F5-3806-7B40-E053-6C04A8C0A630}","345000","2021-06-25 00:00","SS15 6BG","S","N","F","2","","BROADWATER GREEN","LAINDON","BASILDON","BASILDON","ESSEX","A","A"
"{D22473F5-3807-7B40-E053-6C04A8C0A630}","220000","2021-08-20 00:00","CO7 0HE","S","N","F","133","","CHAPEL ROAD","BRIGHTLINGSEA","COLCHESTER","TENDRING","ESSEX","A","A"
"{D22473F5-3808-7B40-E053-6C04A8C0A630}","362000","2021-06-29 00:00","SS15 4AX","T","N","F","32","","CROUCH STREET","","BASILDON","BASILDON","ESSEX","A","A"
"{D22473F5-3809-7B40-E053-6C04A8C0A630}","300000","2021-06-25 00:00","CM9 6EP","T","N","F","58","","ORCHARD ROAD","","MALDON","MALDON","ESSEX","A","A"
"{D22473F5-380A-7B40-E053-6C04A8C0A630}","300000","2021-06-17 00:00","SS4 3AR","T","N","F","32","","ALLERTON CLOSE","","ROCHFORD","ROCHFORD","ESSEX","A","A"
"{D22473F5-380B-7B40-E053-6C04A8C0A630}","535000","2021-10-22 00:00","SS9 1PZ","T","N","F","113","","LEIGHTON AVENUE","","LEIGH-ON-SEA","SOUTHEND-ON-SEA","SOUTHEND-ON-SEA","A","A"
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携带字段名和类型

TabSeparatedWithNamesAndTypes

uuid_string     price_string    time    postcode        a       b       c       addr1   addr2   street  locality        town    district        county  d       e
String  String  String  String  String  String  String  String  String  String  String  String  String  String  String  String
{D22473F5-3802-7B40-E053-6C04A8C0A630}  230000  2021-06-09 00:00        CO13 0PQ        D       N       F       4               BELLAMY CLOSE   KIRBY CROSS     FRINTON-ON-SEA  TENDRING        ESSEX   A       A
{D22473F5-3803-7B40-E053-6C04A8C0A630}  700000  2021-06-25 00:00        IG10 4BS        T       N       F       70              SMARTS LANE             LOUGHTON        EPPING FOREST   ESSEX   A       A
{D22473F5-3804-7B40-E053-6C04A8C0A630}  625000  2021-06-28 00:00        EN9 1LH S       N       F       7               THE COBBINS             WALTHAM ABBEY   EPPING FOREST   ESSEX   A       A
{D22473F5-3805-7B40-E053-6C04A8C0A630}  360000  2021-02-17 00:00        SS9 3AU S       N       F       117             FLEMMING AVENUE         LEIGH-ON-SEA    SOUTHEND-ON-SEA SOUTHEND-ON-SEA A       A
{D22473F5-3806-7B40-E053-6C04A8C0A630}  345000  2021-06-25 00:00        SS15 6BG        S       N       F       2               BROADWATER GREEN        LAINDON BASILDON        BASILDON        ESSEX   A       A
{D22473F5-3807-7B40-E053-6C04A8C0A630}  220000  2021-08-20 00:00        CO7 0HE S       N       F       133             CHAPEL ROAD     BRIGHTLINGSEA   COLCHESTER      TENDRING        ESSEX   A       A
{D22473F5-3808-7B40-E053-6C04A8C0A630}  362000  2021-06-29 00:00        SS15 4AX        T       N       F       32              CROUCH STREET           BASILDON        BASILDON        ESSEX   A       A
{D22473F5-3809-7B40-E053-6C04A8C0A630}  300000  2021-06-25 00:00        CM9 6EP T       N       F       58              ORCHARD ROAD            MALDON  MALDON  ESSEX   A       A
{D22473F5-380A-7B40-E053-6C04A8C0A630}  300000  2021-06-17 00:00        SS4 3AR T       N       F       32              ALLERTON CLOSE          ROCHFORD        ROCHFORD        ESSEX   A       A
{D22473F5-380B-7B40-E053-6C04A8C0A630}  535000  2021-10-22 00:00        SS9 1PZ T       N       F       113             LEIGHTON AVENUE         LEIGH-ON-SEA    SOUTHEND-ON-SEA SOUTHEND-ON-SEA A       A
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JSONCompactEachRowWithNamesAndTypes

["uuid_string", "price_string", "time", "postcode", "a", "b", "c", "addr1", "addr2", "street", "locality", "town", "district", "county", "d", "e"]
["String", "String", "String", "String", "String", "String", "String", "String", "String", "String", "String", "String", "String", "String", "String", "String"]
["{D22473F5-3802-7B40-E053-6C04A8C0A630}", "230000", "2021-06-09 00:00", "CO13 0PQ", "D", "N", "F", "4", "", "BELLAMY CLOSE", "KIRBY CROSS", "FRINTON-ON-SEA", "TENDRING", "ESSEX", "A", "A"]
["{D22473F5-3803-7B40-E053-6C04A8C0A630}", "700000", "2021-06-25 00:00", "IG10 4BS", "T", "N", "F", "70", "", "SMARTS LANE", "", "LOUGHTON", "EPPING FOREST", "ESSEX", "A", "A"]
["{D22473F5-3804-7B40-E053-6C04A8C0A630}", "625000", "2021-06-28 00:00", "EN9 1LH", "S", "N", "F", "7", "", "THE COBBINS", "", "WALTHAM ABBEY", "EPPING FOREST", "ESSEX", "A", "A"]
["{D22473F5-3805-7B40-E053-6C04A8C0A630}", "360000", "2021-02-17 00:00", "SS9 3AU", "S", "N", "F", "117", "", "FLEMMING AVENUE", "", "LEIGH-ON-SEA", "SOUTHEND-ON-SEA", "SOUTHEND-ON-SEA", "A", "A"]
["{D22473F5-3806-7B40-E053-6C04A8C0A630}", "345000", "2021-06-25 00:00", "SS15 6BG", "S", "N", "F", "2", "", "BROADWATER GREEN", "LAINDON", "BASILDON", "BASILDON", "ESSEX", "A", "A"]
["{D22473F5-3807-7B40-E053-6C04A8C0A630}", "220000", "2021-08-20 00:00", "CO7 0HE", "S", "N", "F", "133", "", "CHAPEL ROAD", "BRIGHTLINGSEA", "COLCHESTER", "TENDRING", "ESSEX", "A", "A"]
["{D22473F5-3808-7B40-E053-6C04A8C0A630}", "362000", "2021-06-29 00:00", "SS15 4AX", "T", "N", "F", "32", "", "CROUCH STREET", "", "BASILDON", "BASILDON", "ESSEX", "A", "A"]
["{D22473F5-3809-7B40-E053-6C04A8C0A630}", "300000", "2021-06-25 00:00", "CM9 6EP", "T", "N", "F", "58", "", "ORCHARD ROAD", "", "MALDON", "MALDON", "ESSEX", "A", "A"]
["{D22473F5-380A-7B40-E053-6C04A8C0A630}", "300000", "2021-06-17 00:00", "SS4 3AR", "T", "N", "F", "32", "", "ALLERTON CLOSE", "", "ROCHFORD", "ROCHFORD", "ESSEX", "A", "A"]
["{D22473F5-380B-7B40-E053-6C04A8C0A630}", "535000", "2021-10-22 00:00", "SS9 1PZ", "T", "N", "F", "113", "", "LEIGHTON AVENUE", "", "LEIGH-ON-SEA", "SOUTHEND-ON-SEA", "SOUTHEND-ON-SEA", "A", "A"]
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JSONCompactStringsEachRowWithNamesAndTypes

["uuid_string", "price_string", "time", "postcode", "a", "b", "c", "addr1", "addr2", "street", "locality", "town", "district", "county", "d", "e"]
["String", "String", "String", "String", "String", "String", "String", "String", "String", "String", "String", "String", "String", "String", "String", "String"]
["{D22473F5-3802-7B40-E053-6C04A8C0A630}", "230000", "2021-06-09 00:00", "CO13 0PQ", "D", "N", "F", "4", "", "BELLAMY CLOSE", "KIRBY CROSS", "FRINTON-ON-SEA", "TENDRING", "ESSEX", "A", "A"]
["{D22473F5-3803-7B40-E053-6C04A8C0A630}", "700000", "2021-06-25 00:00", "IG10 4BS", "T", "N", "F", "70", "", "SMARTS LANE", "", "LOUGHTON", "EPPING FOREST", "ESSEX", "A", "A"]
["{D22473F5-3804-7B40-E053-6C04A8C0A630}", "625000", "2021-06-28 00:00", "EN9 1LH", "S", "N", "F", "7", "", "THE COBBINS", "", "WALTHAM ABBEY", "EPPING FOREST", "ESSEX", "A", "A"]
["{D22473F5-3805-7B40-E053-6C04A8C0A630}", "360000", "2021-02-17 00:00", "SS9 3AU", "S", "N", "F", "117", "", "FLEMMING AVENUE", "", "LEIGH-ON-SEA", "SOUTHEND-ON-SEA", "SOUTHEND-ON-SEA", "A", "A"]
["{D22473F5-3806-7B40-E053-6C04A8C0A630}", "345000", "2021-06-25 00:00", "SS15 6BG", "S", "N", "F", "2", "", "BROADWATER GREEN", "LAINDON", "BASILDON", "BASILDON", "ESSEX", "A", "A"]
["{D22473F5-3807-7B40-E053-6C04A8C0A630}", "220000", "2021-08-20 00:00", "CO7 0HE", "S", "N", "F", "133", "", "CHAPEL ROAD", "BRIGHTLINGSEA", "COLCHESTER", "TENDRING", "ESSEX", "A", "A"]
["{D22473F5-3808-7B40-E053-6C04A8C0A630}", "362000", "2021-06-29 00:00", "SS15 4AX", "T", "N", "F", "32", "", "CROUCH STREET", "", "BASILDON", "BASILDON", "ESSEX", "A", "A"]
["{D22473F5-3809-7B40-E053-6C04A8C0A630}", "300000", "2021-06-25 00:00", "CM9 6EP", "T", "N", "F", "58", "", "ORCHARD ROAD", "", "MALDON", "MALDON", "ESSEX", "A", "A"]
["{D22473F5-380A-7B40-E053-6C04A8C0A630}", "300000", "2021-06-17 00:00", "SS4 3AR", "T", "N", "F", "32", "", "ALLERTON CLOSE", "", "ROCHFORD", "ROCHFORD", "ESSEX", "A", "A"]
["{D22473F5-380B-7B40-E053-6C04A8C0A630}", "535000", "2021-10-22 00:00", "SS9 1PZ", "T", "N", "F", "113", "", "LEIGHTON AVENUE", "", "LEIGH-ON-SEA", "SOUTHEND-ON-SEA", "SOUTHEND-ON-SEA", "A", "A"]
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TSKV

uuid_string={D22473F5-3802-7B40-E053-6C04A8C0A630}      price_string=230000     time=2021-06-09 00:00   postcode=CO13 0PQ       a=D     b=N     c=F     addr1=4 addr2=  street=BELLAMY CLOSE    locality=KIRBY CROSS    town=FRINTON-ON-SEA     district=TENDRING       county=ESSEX    d=A     e=A
uuid_string={D22473F5-3803-7B40-E053-6C04A8C0A630}      price_string=700000     time=2021-06-25 00:00   postcode=IG10 4BS       a=T     b=N     c=F     addr1=70        addr2=  street=SMARTS LANE      locality=       town=LOUGHTON   district=EPPING FOREST  county=ESSEX    d=A     e=A
uuid_string={D22473F5-3804-7B40-E053-6C04A8C0A630}      price_string=625000     time=2021-06-28 00:00   postcode=EN9 1LH        a=S     b=N     c=F     addr1=7 addr2=  street=THE COBBINS      locality=       town=WALTHAM ABBEY      district=EPPING FOREST  county=ESSEX    d=A     e=A
uuid_string={D22473F5-3805-7B40-E053-6C04A8C0A630}      price_string=360000     time=2021-02-17 00:00   postcode=SS9 3AU        a=S     b=N     c=F     addr1=117       addr2=  street=FLEMMING AVENUE  locality=       town=LEIGH-ON-SEA       district=SOUTHEND-ON-SEA        county=SOUTHEND-ON-SEA  d=A     e=A
uuid_string={D22473F5-3806-7B40-E053-6C04A8C0A630}      price_string=345000     time=2021-06-25 00:00   postcode=SS15 6BG       a=S     b=N     c=F     addr1=2 addr2=  street=BROADWATER GREEN locality=LAINDON        town=BASILDON   district=BASILDON       county=ESSEX    d=A     e=A
uuid_string={D22473F5-3807-7B40-E053-6C04A8C0A630}      price_string=220000     time=2021-08-20 00:00   postcode=CO7 0HE        a=S     b=N     c=F     addr1=133       addr2=  street=CHAPEL ROAD      locality=BRIGHTLINGSEA  town=COLCHESTER district=TENDRING       county=ESSEX    d=A     e=A
uuid_string={D22473F5-3808-7B40-E053-6C04A8C0A630}      price_string=362000     time=2021-06-29 00:00   postcode=SS15 4AX       a=T     b=N     c=F     addr1=32        addr2=  street=CROUCH STREET    locality=       town=BASILDON   district=BASILDON       county=ESSEX    d=A     e=A
uuid_string={D22473F5-3809-7B40-E053-6C04A8C0A630}      price_string=300000     time=2021-06-25 00:00   postcode=CM9 6EP        a=T     b=N     c=F     addr1=58        addr2=  street=ORCHARD ROAD     locality=       town=MALDON     district=MALDON county=ESSEX    d=A     e=A
uuid_string={D22473F5-380A-7B40-E053-6C04A8C0A630}      price_string=300000     time=2021-06-17 00:00   postcode=SS4 3AR        a=T     b=N     c=F     addr1=32        addr2=  street=ALLERTON CLOSE   locality=       town=ROCHFORD   district=ROCHFORD       county=ESSEX    d=A     e=A
uuid_string={D22473F5-380B-7B40-E053-6C04A8C0A630}      price_string=535000     time=2021-10-22 00:00   postcode=SS9 1PZ        a=T     b=N     c=F     addr1=113       addr2=  street=LEIGHTON AVENUE  locality=       town=LEIGH-ON-SEA       district=SOUTHEND-ON-SEA        county=SOUTHEND-ON-SEA  d=A     e=A
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RowBinaryWithNamesAndTypes

二进制格式，不支持文本查看。

不可读类型

Native

最高性能的格式。通过二进制格式的块进行写入和读取（即它是基于块的，这和后面介绍的RowBinary系列不同）。它主要用于服务器间交互。
在《探索ClickHouse——使用Projection加速查询》一文中，原始数据是CSV格式，大小约4.6G。导入数据库后约308M。这个数据库的内容导出为Native格式的文件，大小只有约168M。

-rw-rw-r-- 1 fangliang fangliang 176572374 Sep 26 09:19 Native.txt

RowBinary

以二进制格式逐行格式化和解析数据。行和值连续列出，没有分隔符。这种格式比 Native 格式效率低，因为它是基于行的。
导出这个类型的文件，大概和Native类型的差不多大小。

-rw-rw-r-- 1 fangliang fangliang 176568308 Sep 26 10:12 RowBinary.txt

RowBinaryWithNamesAndTypes

添加头部信息的RowBinary。

其他开源项目类型

Protobuf

Protobuf是一个 Protocol Buffers 格式。此格式需要外部格式描述文件(proto文件)。该描述文件会进行缓存，以备后续查询。 ClickHouse支持 proto2 和 proto3 语法的proto文件，支持重复/可选/必填字段。

Avro

Apache Avro 是在Apache Hadoop项目中开发的面向行的数据序列化框架。

Parquet

Apache Parquet 是Hadoop生态系统中普遍使用的列式存储格式。

Arrow

Apache Arrow是一种用于内存数据库的格式，共有两种模式，文件与流模式。

ArrowStream

ArrowStream对应的是Arrow的流模式，这种格式适用于内存的流式处理。

ORC

Apache ORC 是Hadoop生态系统中普遍存在的列式存储格式。

其他

Compact和非Compact的区别

非Compact是一条完整符合规则的格式，Compact则是将值变成一个数组保存。以JSONCompactEachRowJSONEachRow为例

# JSONCompactEachRow
["{D22473F5-3802-7B40-E053-6C04A8C0A630}", "230000", "2021-06-09 00:00", "CO13 0PQ", "D", "N", "F", "4", "", "BELLAMY CLOSE", "KIRBY CROSS", "FRINTON-ON-SEA", "TENDRING", "ESSEX", "A", "A"]
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# JSONEachRow
{"uuid_string":"{D22473F5-3802-7B40-E053-6C04A8C0A630}","price_string":"230000","time":"2021-06-09 00:00","postcode":"CO13 0PQ","a":"D","b":"N","c":"F","addr1":"4","addr2":"","street":"BELLAMY CLOSE","locality":"KIRBY CROSS","town":"FRINTON-ON-SEA","district":"TENDRING","county":"ESSEX","d":"A","e":"A"}
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String和非String的区别

String会将JSON对象转变为一个字符串。以JSONStringsEachRow和JSONEachRow为例:

#  JSONCompactEachRow
[42,"hello",[1,"a"]] 
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# JSONCompactStringsEachRow
["42","hello","(2,'a')"] 
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导出命令

上述格式可以通过修改下面的命令导出，其中–format用于指定格式。

clickhouse-client --query "SELECT * FROM file('pp-2021.csv', 'CSV', 'uuid_string String, price_string String, time String, postcode String, a String, b String, c String, addr1 String, addr2 String, street String, locality String, town String, district String, county String, d String, e String') LIMIT 10;" --format JSONCompactEachRow > JSONCompactEachRow.txt
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查考资料

https://clickhouse.com/docs/en/sql-reference/formats

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原文地址：https://blog.csdn.net/breaksoftware/article/details/132988558

探索ClickHouse——同时支持导入导出功能的文件格式

大纲

按常见格式区分

JSON

JSONEachRow

JSONStringsEachRow

JSONCompactEachRow

JSONCompactStringsEachRow

按分隔符

TabSeparated

CSV

Values

按携带更多信息

只携带字段名

TabSeparatedWithNames

CSVWithNames

携带字段名和类型

TabSeparatedWithNamesAndTypes

JSONCompactEachRowWithNamesAndTypes

JSONCompactStringsEachRowWithNamesAndTypes

TSKV

RowBinaryWithNamesAndTypes

不可读类型

Native

RowBinary

RowBinaryWithNamesAndTypes

其他开源项目类型

Protobuf

Avro

Parquet

Arrow

ArrowStream

ORC

其他

Compact和非Compact的区别

String和非String的区别

导出命令

查考资料