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[PIG-3661] Piggybank AvroStorage fails if used in more than one load or store statement - Pig - [issue]
...To reproduce:A =load '/tmp/data' as (a1:int, a2:int, a3:int);B = load '/tmp/data1' as (b1:chararray, b2:chararray, b3:chararray);store A into '/tmp/out/a' using org.apache.pig.piggybank.stor...
http://issues.apache.org/jira/browse/PIG-3661    Author: Rohini Palaniswamy, 2014-04-04, 22:22
Re: Review Request 15881: PIG-3591: Refactor POPackage - Pig - [mail # dev]
...This is an automatically generated e-mail. To reply, visit:https://reviews.apache.org/r/15881/#review39461Ship it!src/org/apache/pig/backend/hadoop/executionengine/physicalLayer/relationalOp...
   Author: Rohini Palaniswamy, 2014-04-03, 19:34
Re: Review Request 19836: PIG-3835: Improve performance of union - Pig - [mail # dev]
...This is an automatically generated e-mail. To reply, visit:https://reviews.apache.org/r/19836/(Updated April 1, 2014, 7:37 p.m.)Review request for pig, Cheolsoo Park and Daniel Dai.ChangesFi...
   Author: Rohini Palaniswamy, 2014-04-01, 19:37
[PIG-3845] Use shared edge with no multiquery - Pig - [issue]
...Currently we write map output once for every split and consume in downstream vertices. Need a custom Shared edge implementation in Tez where we can write once and read from all successor ver...
http://issues.apache.org/jira/browse/PIG-3845    Author: Rohini Palaniswamy, 2014-03-31, 19:59
[PIG-3856] UnionOptimizer in Tez should optimize the case of replicated join - Pig - [issue]
...Replicate join input that was broadcast to union vertex now needs to be broadcast to all the union predecessors. So we need to Create edges from the Replicate join input to all the union pre...
http://issues.apache.org/jira/browse/PIG-3856    Author: Rohini Palaniswamy, 2014-03-31, 19:59
[PIG-3854] Improve performance of Limit on Tez - Pig - [issue]
...When checking out union followed by limit in PIG-3835, saw that the plan was very complex. We should certainly be able to simplify it....
http://issues.apache.org/jira/browse/PIG-3854    Author: Rohini Palaniswamy, 2014-03-31, 19:45
[PIG-3852] Remove SecurityHelper class for Tez and use Tez helpers instead - Pig - [issue]
...TEZ jira have been created to support mapreduce.job.hdfs-servers and mapreduce.job.credentials.binary. So we can get rid of SecurityHelper.java written for Pig on Tez....
http://issues.apache.org/jira/browse/PIG-3852    Author: Rohini Palaniswamy, 2014-03-28, 19:38
[PIG-3850] Optimize join followed by order by using same key - Pig - [issue]
...Possible optimizations:    1) If it is a skewed join, then we can combine ordering into it instead of doing a additional orderby as we skewed join already involves sampling.&n...
http://issues.apache.org/jira/browse/PIG-3850    Author: Rohini Palaniswamy, 2014-03-27, 23:26
[PIG-3849] Optimize group by followed by join on the same key - Pig - [issue]
... This can be done in one vertex with multiple inputs instead of having an extra vertex to do the join. i.e Currently Vertex 1 (load relation1) > Vertex 2 (group by) -> Vertex 4 (j...
http://issues.apache.org/jira/browse/PIG-3849    Author: Rohini Palaniswamy, 2014-03-27, 23:13
[PIG-3848] Dynamically switch to replicate join - Pig - [issue]
...   If data sizes are found to be small after filtering then switch to replicate join dynamically if user has not specified "using" clause explicitly. But this required support from...
http://issues.apache.org/jira/browse/PIG-3848    Author: Rohini Palaniswamy, 2014-03-27, 23:09
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