19, 2012 9:23 PM
*Subject:* Question on bucketed map join
Hi,
I have two tables with 8 buckets each on the same key and want to join
them.
I ran explain extended and get the plan produced by HIVE which shows
that a map-side join is a possible plan.
I then set in my script
@hive.apache.org
ReplyTo: user@hive.apache.org
Subject: Re: Question on bucketed map join
Hi Avrila
AFAIK the bucketed map join is not default in hive and it happens only
when the values is set to true. It could be because the same value is already
set in the hive configuration xml file
Hi,
I have two tables with 8 buckets each on the same key and want to join them.
I ran explain extended and get the plan produced by HIVE which shows that a
map-side join is a possible plan.
I then set in my script the hive.optimize.bucketmapjoin option to true and
reran the explain extended
From: Avrilia Floratou flora...@cs.wisc.edu
To: user@hive.apache.org
Sent: Thursday, January 19, 2012 9:23 PM
Subject: Question on bucketed map join
Hi,
I have two tables with 8 buckets each on the same key and want to join them.
I ran explain extended and get the plan produced
@hive.apache.org
Reply-To: user@hive.apache.org
Subject: Re: Question on bucketed map join
Hi Avrila
AFAIK the bucketed map join is not default in hive and it happens only
when the values is set to true. It could be because the same value is already
set in the hive configuration xml file. To cross