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[PIG-4002] Disable combiner when map-side aggregation is used - Pig - [issue]
...This may be controversial, so I'd like others' opinions on this.It is not currently possible to disable the combiner and use map-side aggregation at the same time. This is a problematic sinc...
http://issues.apache.org/jira/browse/PIG-4002    Author: Travis Woodruff, 2014-07-24, 04:46
[PIG-3649] POPartialAgg incorrectly calculates size reduction when multiple values aggregated - Pig - [issue]
...POPartialAgg.aggregate() counts the number of output columns (valueTuple.size() - 1), but checkSizeReduction() compares this to the number of input tuples. When multiple columns are aggregat...
http://issues.apache.org/jira/browse/PIG-3649    Author: Travis Woodruff, 2014-07-07, 19:08
[PIG-4018] Schema validation fails with UNION ONSCHEMA - Pig - [issue]
...When relations with differing schemas are unioned (using UNION ONSCHEMA), schema validation can fail with this exception:org.apache.pig.impl.plan.PlanValidationException: Logical plan invali...
http://issues.apache.org/jira/browse/PIG-4018    Author: Travis Woodruff, 2014-06-22, 04:11
[PIG-4001] POPartialAgg aggregates too aggressively when multiple values aggregated - Pig - [issue]
...POPartialAgg.aggregateRawRow() is counting values in numEntriesInTarget, but all the values that numEntriesInTarget is compared to count tuples.This is similar to PIG-3649 but has less of a ...
http://issues.apache.org/jira/browse/PIG-4001    Author: Travis Woodruff, 2014-06-20, 00:59
[PIG-3988] PigStorage: CommandLineParser is not thread safe - Pig - [issue]
...PigStorage uses commons-cli to parse options. The CommandLineParser is stored as a static member. This can cause issues when two threads instantiate PigStorage at the same time, since Comman...
http://issues.apache.org/jira/browse/PIG-3988    Author: Travis Woodruff, 2014-06-11, 20:27
[PIG-3654] Add class cache to PigContext - Pig - [issue]
...While benchmarking compile time for a large scripts, I noticed that class lookups for UDFs accounted for a significant amount of time. Adding a simple cache for looked up classes would speed...
http://issues.apache.org/jira/browse/PIG-3654    Author: Travis Woodruff, 2014-01-22, 18:48
[PIG-3653] Add support for pre-deployed jars - Pig - [issue]
...This may be a niche use case, but this is a simple change that may be useful to others.When jobs are started from a network not local to the the Hadoop cluster, the upload of the job jars ca...
http://issues.apache.org/jira/browse/PIG-3653    Author: Travis Woodruff, 2014-01-09, 19:35
[PIG-3650] Fix for PIG-3100 breaks column pruning - Pig - [issue]
...The fix for PIG-3100 does Math.min(fieldSchemas.length, tup.size()) in PigStorage.applySchema(). This means that if column pruning is in use, all schema columns will not be iterated over (si...
http://issues.apache.org/jira/browse/PIG-3650    Author: Travis Woodruff, 2014-01-07, 21:54
POPartialAgg issue - Pig - [mail # user]
...I've been fighting with POPartialAgg for a couple of days now, and I've come across what I think is a bug.  aggregate() does this:  numEntriesInTarget += valueTuple.size() - 1; &nb...
   Author: Travis Woodruff, 2013-07-26, 19:14
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