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[PIG-2710] Implement Naive CUBE operator - Pig - [issue]
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...The Naive CUBE operator is just syntactic sugar for the CubeDimensions UDFS followed by a flatten+group-by....
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http://issues.apache.org/jira/browse/PIG-2710
Author: Dmitriy V. Ryaboy,
2012-10-22, 19:44
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[PIG-2778] Add 'matches' operator to predicate pushdown - Pig - [issue]
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...Currently the regex match operation does not get pushed down to LoadMetadata (and Expression does not have an enum value for it); it would be quite useful to enable this for some optimizatio...
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http://issues.apache.org/jira/browse/PIG-2778
Author: Dmitriy V. Ryaboy,
2012-10-19, 00:40
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[PIG-2925] Extremely long JobConf values should not be added to Streaming environment - Pig - [issue]
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...PIG-2900 made Pig match Hadoop's practice of making all JobConf properties available as environment variables for pig streaming. As it happens, ProcessBuilder creates a long string with all ...
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http://issues.apache.org/jira/browse/PIG-2925
Author: Dmitriy V. Ryaboy,
2012-10-15, 21:43
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[PIG-2918] Avoid Spillable bag overhead where possible - Pig - [issue]
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...We use BagFactory.newDefaultBag() liberally, and pay a price – each such bag registers with the spillable memory manager, and if we allocate a lot of tiny bags, we wind up paying for m...
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http://issues.apache.org/jira/browse/PIG-2918
Author: Dmitriy V. Ryaboy,
2012-09-15, 03:45
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[PIG-2528] Add setScriptPlan() method to PigProgressNotificationListener - Pig - [issue]
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...For the purposes of tracing usage and statistics of Pig scripts, I'd like to be able to correlate the information PPNL can now collect with the script that was actually running. Currently, a...
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http://issues.apache.org/jira/browse/PIG-2528
Author: Dmitriy V. Ryaboy,
2012-09-03, 04:41
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[PIG-2888] Improve performance of POPartialAgg - Pig - [issue]
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...During performance testing, we found that POPartialAgg can cause performance degradation for Pig jobs when the Algebraic UDFs it's being applied to aren't well suited to the operator's assum...
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http://issues.apache.org/jira/browse/PIG-2888
Author: Dmitriy V. Ryaboy,
2012-09-02, 23:49
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[PIG-2890] Revert PIG-2578 - Pig - [issue]
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...PIG-2870 and PIG-2872 contain the discussion on why that patch needs to be reverted....
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http://issues.apache.org/jira/browse/PIG-2890
Author: Dmitriy V. Ryaboy,
2012-08-25, 23:02
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[PIG-2065] IsEmpty should be Accumulative - Pig - [issue]
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...IsEmpty is trivial to implement as an accumulator. We should do that....
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http://issues.apache.org/jira/browse/PIG-2065
Author: Dmitriy V. Ryaboy,
2012-08-24, 20:51
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[PIG-2255] SIZE should be algebraic when invoked on a bag - Pig - [issue]
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...SIZE of a bag is equivalent to COUNT_STAR, and should get optimized accordingly....
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http://issues.apache.org/jira/browse/PIG-2255
Author: Dmitriy V. Ryaboy,
2012-08-24, 19:37
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[PIG-2855] Provide a method to measure time spent in UDFs - Pig - [issue]
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...When debugging slow jobs, it is often useful to know whether time is being spent in UDFs, and in which UDFs. This is easy to measure from within the framework, we should let users optionally...
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http://issues.apache.org/jira/browse/PIG-2855
Author: Dmitriy V. Ryaboy,
2012-08-09, 05:34
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