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[PIG-3838] Organize tez code into subpackages - Pig - [issue]
...Created an operators package while implementing rank. Should move all operators there. Also thinking of having other packages like plan (TezCompiler, TezDAGBuilder, planprinter classes, etc)...
http://issues.apache.org/jira/browse/PIG-3838    Author: Rohini Palaniswamy, 2014-05-30, 20:17
[PIG-3839] Umbrella jira for Pig on Tez Performance Improvements - Pig - [issue]
...Separating out performance improvements from PIG-3446 which is the main jira for Pig on Tez....
http://issues.apache.org/jira/browse/PIG-3839    Author: Rohini Palaniswamy, 2014-05-30, 20:17
[PIG-3840] Umbrella jira for Pig on Tez Unit Test porting - Pig - [issue]
...Separating out unit test porting jiras from PIG-3446 which is the main jira for Pig on Tez....
http://issues.apache.org/jira/browse/PIG-3840    Author: Rohini Palaniswamy, 2014-05-30, 20:17
[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, 2014-05-30, 20:17
[PIG-3847] Sort avoidance for group by and join - Pig - [issue]
...Group by and join only require that the records be grouped together by key. It is not necessary for the keys to be sorted. If we can have a Tez Input/Output implementation that does the grou...
http://issues.apache.org/jira/browse/PIG-3847    Author: Rohini Palaniswamy, 2014-05-30, 20:16
[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, 2014-05-30, 20:16
[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, 2014-05-30, 20:16
[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, 2014-05-30, 20:16
[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, 2014-05-30, 20:15
[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, 2014-05-30, 20:15
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