Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Plain View
Hive >> mail # user >> Map side join


Hello everybody,

I have got a question. I didn't came across any post which says somethign
about this.
I have got two tables. Lets say A and B.
I want to join A & B in HIVE. I am currently using HIVE 0.9 version.
The join would be on few columns. like on (A.id1 = B.id1) AND (A.id2 B.id2) AND (A.id3 = B.id3)

Can I ask HIVE to use map side join in this scenario? Should I give a hint
to HIVE by saying /*+mapjoin(B)*/

Get back to me if you want any more information in this regard.

Thanks and regards,
Souvik.
+
bejoy_ks@... 2012-12-07, 20:10
+
Souvik Banerjee 2012-12-07, 20:32
+
Souvik Banerjee 2012-12-11, 23:12
+
bejoy_ks@... 2012-12-12, 14:04
+
Souvik Banerjee 2012-12-12, 20:27
+
bejoy_ks@... 2012-12-13, 17:12
+
Souvik Banerjee 2012-12-13, 18:00
+
bejoy_ks@... 2012-12-13, 18:06
+
Souvik Banerjee 2012-12-13, 18:36
+
Souvik Banerjee 2012-12-27, 23:05