json - Apache Drill:从Json数据中选择时创建表错误

Question

下面的命令运行正常。

SELECT TO_TIMESTAMP(`ts`,'yyyyMMddHHmmss') 
FROM dfs.tmp`/mapr/my.cluster.com/hive/cpf_sales.json

但是，当我尝试从select语句创建表时，它给出了错误。以下是我尝试过的

ALTER SESSION SET `store.format`='json';
use dfs;

CREATE TABLE by_yr (gen_date)  AS SELECT TO_TIMESTAMP(`ts`,'yyyyMMddHHmmss') FROM dfs.`/mapr/my.cluster.com/hive/cpf_sales.json` LIMIT 100;

**Error:**
org.apache.drill.common.exceptions.UserRemoteException: PARSE ERROR: Encountered ";" at line 1, column 8. Was expecting one of: "." ... "[" ... SQL Query use dfs; ^ CREATE TABLE by_yr (gen_date) AS SELECT TO_TIMESTAMP(`ts`,'yyyyMMddHHmmss') FROM dfs.`/mapr/my.cluster.com/hive/cpf_sales.json` LIMIT 100 [Error Id: 81cbe394-b3c6-4c34-80ad-83325f748ae1 on iot3:31010]

use dfs.tmp;

CREATE TABLE by_yr (gen_date)  AS SELECT TO_TIMESTAMP(`ts`,'yyyyMMddHHmmss') FROM dfs.tmp`/mapr/my.cluster.com/hive/cpf_sales.json` LIMIT 100;

**Error:**
org.apache.drill.common.exceptions.UserRemoteException: PARSE ERROR: Encountered ";" at line 1, column 12. Was expecting one of: "." ... "[" ... SQL Query use dfs.tmp; ^ SELECT COLUMNS[0], COLUMNS[1] from dfs.tmp.`/mapr/my.cluster.com/donuts.json` [Error Id: 5e9d1d20-a804-4d09-8b69-d76b3c009647 on iot2:31010]

Answer 1

您是否可以尝试在路径周围加上单引号，例如:

ALTER SESSION SET store.format='json'; use dfs;

CREATE TABLE by_yr (gen_date) AS 
SELECT TO_TIMESTAMP(ts,'yyyyMMddHHmmss') 
FROM dfs.'/mapr/my.cluster.com/hive/cpf_sales.json' LIMIT 100;