Yes make a ticket
On Tuesday, May 1, 2012, Ruben de Vries <ruben.devr...@hyves.nl> wrote: > I really do feel like this isn't as intended, should I make a ticket in JIRA? > > -----Original Message----- > From: Ruben de Vries [mailto:ruben.devr...@hyves.nl] > Sent: Thursday, April 26, 2012 3:37 PM > To: user@hive.apache.org > Subject: RE: JOIN + LATERAL VIEW + MAPJOIN = no output?! > > https://gist.github.com/2499658 > > and this is the plan.xml its using > > -----Original Message----- > From: Ruben de Vries [mailto:ruben.devr...@hyves.nl] > Sent: Thursday, April 26, 2012 3:17 PM > To: user@hive.apache.org > Subject: JOIN + LATERAL VIEW + MAPJOIN = no output?! > > Okay first off; so JOIN + LATERAL VIEW together isn't working so I moved my JOIN into a subquery and that makes the query work properly > > However when I added a MAPJOIN hint for the JOIN in the subquery it will also stop doing the reducer for the main query! > This only happens when there's a LATERAL VIEW in there though, if I remove the LATERAL VIEW then the main query still get's a reducer to do grouping > > Here's a gist: https://gist.github.com/2499436 Containing the queries and a PHP script which you can run to execute the test case; > - setup a database called hive_mapjoin > - setup tables > - load some test data > - do the selects > You'll need the > https://github.com/rcongiu/Hive-JSON-Serde/downloadsjson-serde-1.1-jar-with-dependencies.jar > with it though and change the path ;) > > Not sure if this is a bug or me doing something that just isn’t supposed to be working, > > Thanks Ruben >
