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我必須將數據從一個蜂巢表中哪些字段用雙引號括一個CSV文件導出。輸出蜂巢查詢結果爲csv用引號括起來
到目前爲止,我能夠生成一個CSV文件,而不使用下面的查詢
INSERT OVERWRITE DIRECTORY '/user/vikas/output'
ROW FORMAT DELIMITED
FIELDS TERMINATED BY ','
SELECT QUERY
輸出生成的模樣
1,Vikas Saxena,Banking,JL5
但是報價,我需要的輸出
"1","Vikas Saxena","Banking","JL5"
我試着將查詢改爲
INSERT OVERWRITE DIRECTORY '/user/vikas/output'
ROW FORMAT SERDE 'org.apache.hadoop.hive.serde2.OpenCSVSerde'
WITH SERDEPROPERTIES (
"separatorChar" = ",",
"quoteChar" = "\"",
"escapeChar" = "\\"
)
SELECT QUERY
但它會顯示錯誤
Error while compiling statement: FAILED: ParseException line 1:0 cannot recognize input near 'ROW' 'FORMAT' 'SERDE'
那麼爲什麼你不創建映射到該目錄的EXTERNAL TABLE,插入它,然後刪除表? –
使用配置單元連接。即concat(「\」「,col,」\「」) – Sanket