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https://issues.apache.org/jira/browse/PIG-336?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Pradeep Kamath updated PIG-336:
-------------------------------
Attachment: PIG-336-part1_v4.patch
Attached patch to address review comments.
Delta to previous patch:
- Removed TestOrderBy changes - we should revisit this after order desc is fixed
- NullableXXX classes have a change in the compareTo():
If both the objects being compared are nulls, it returns a 0 - this enables all
nulls to collapse during a group by
-keyDiscoverKeyTypeVisitor has been changed to visit MROperPlan
Supporting changes are in JobControlCompiler, PigMapBase,
LocalLauncher,MapReduceLauncher, MapReduceOper, PigCombiner,
> NULL checks are not in place in the types branch
> ------------------------------------------------
>
> Key: PIG-336
> URL: https://issues.apache.org/jira/browse/PIG-336
> Project: Pig
> Issue Type: Bug
> Affects Versions: types_branch
> Reporter: Pradeep Kamath
> Assignee: Pradeep Kamath
> Priority: Critical
> Fix For: types_branch
>
> Attachments: PIG-336-part1.patch, PIG-336-part1_v2.patch,
> PIG-336-part1_v3.patch, PIG-336-part1_v4.patch, PIG-336.patch
>
>
> The following code currently does not work
> {code}
> B = filter A by $0 is null and $1 is null;
> {code}
> Some other things which don't work with nulls include POAND, POOR etc
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