Re: Hive performance issue with _ character in query

Hi, > I wanted to understand why hive has a performance issue with using _ > character in queries. This is somewhat of a missed optimization issue - the "%" impl uses a fast BoyerMoore algorithm and avoids converting from utf-8 bytes -> String.

Re: Hive on Tez local debug

bash> hive --hiveconf hive.root.logger=DEBUG,console On Thu, Jan 18, 2018 at 9:16 PM, Jia, Ke A wrote: > Hi all, > > How debug execution code in hive on tez? “hive --debug” command only debug > the explain level code and does not debug the execution code. Does hot have > the

Hive on Tez local debug

Hi all, How debug execution code in hive on tez? "hive --debug" command only debug the explain level code and does not debug the execution code. Does hot have the similar usage as hos by using command "set spark.master=local;"? Thanks for your help. Regards, Jia Ke