分區蜂巢表與另一個外部表

Question

我已經創建了一個外部表，如下面中間一列：

create external table if not exists complaints (date_received string, product string, sub_product string, issue string, sub_issue string, consumer_complaint_narrative string, state string, company_public_response string, company varchar(50), zipcode int, tags string, consumer_consent_provided string, submitted_via string, date_sent_company string, company_response string, timely_response string, consumer_disputed string, complaint_id int) row format delimited fields terminated by ',' stored as textfile location 'hdfs:hostname:8020/complaints/'; 

現在我想創建一個分區作爲國家另一個表complaints_new並具有從所有數據上表。這如何成爲現實？

我嘗試以下：

create external table if not exists complaints_new (date_received string, product string, sub_product string, issue string, sub_issue string, consumer_complaint_narrative string, company_public_response string, company varchar(50), zipcode int, tags string, consumer_consent_provided string, submitted_via string, date_sent_company string, company_response string, timely_response string, consumer_disputed string, complaint_id int) partitioned by (state varchar(20)) row format delimited fields terminated by ',' stored as textfile location 'hdfs://hostname:8020/complaints/'; 

SET hive.exec.dynamic.partition = true; 
SET hive.exec.dynamic.partition.mode = nonstrict; 
SET hive.mapred.mode = nonstrict; 

insert into table complaints_new partition(state) select * from complaints; 

查詢失敗。

Answer 1

你在這裏有幾個問題......你指向的是同一位置，這意味着你將讀取並覆蓋該位置......另一個問題是Hive期望th分區列是最後一個元素你的名單，這意味着你不能做選擇*，而不得不選擇字段到字段，並把你的選擇語句的狀態和結束