FAILED: ParseException line 1:21 cannot recognize input near '' '' '' in table name

Question

Command:

hive -e \"use xxx;DROP TABLE IF EXISTS `xxx.flashsaleeventproducts_hist`;CREATE EXTERNAL TABLE `xxx.flashsaleeventproducts_hist`(`event_id` string,`grou         


        

Answer 1

Please find below script to connect to hive:

import subprocess
import sys
query=""" hive -e "set hive.cli.print.header=true;use db;select * from somehivetable;" """

outresutfile=open("query_result.csv", 'w')
p=subprocess.Popen(query,shell=True,stdout=outresutfile,stderr=subprocess.PIPE)
stdout,stderr = p.communicate()
if p.returncode != 0:
    print stderr
    sys.exit(1)

Answer 2

I have known the problem came from symbol : ` .

Remove that symbol solve the problem .

Only one question left is why ` work well in hive-cli but failed in hive -e "xxx".