Re: Vectorised Queries in Hive

2017-01-11 Thread Gopal Vijayaraghavan
> I have also noticed that this execution mode is only applicable to single > predicate search. It does not work with multiple predicates searches. Can > someone confirms this please? Can you explain what you mean? Vectorization supports multiple & nested AND+OR predicates - with some extra

RE: tez + union stmt

2017-01-11 Thread Bikas Saha
IIRC, the output files for each vertex have the vertex id encoded in them to prevent them from overriding output files from other vertices. Thus the files for different union member vertices can be written safely under the same output dir. Hive might be doing this to maintain uniformity betw

Re: What's the 'hive.metastore.fastpath' in hive site for?

2017-01-11 Thread Vineet Garg
According to this https://github.com/apache/hive/blob/master/common/src/java/org/apache/hadoop/hive/conf/HiveConf.java "Used to avoid all of the proxies and object copies in the metastore. Note, if this is set, you MUST use a local metastore (hive.metastore.uris must be empty) otherwise undefine

Re: tez + union stmt

2017-01-11 Thread Elliot West
Thank you. On Wed, 11 Jan 2017 at 07:21, Chris Drome wrote: > Elliot, > > Mithun already created the following ticket to track the issue: > > https://issues.apache.org/jira/browse/HIVE-15575 > > chris > > > On Tuesday, January 10, 2017 11:05 PM, Elliot West > wrote: > > > Thanks Rohini, > > Thi