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https://issues.apache.org/jira/browse/PIG-3021?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Nian Ji updated PIG-3021:
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Attachment: PIG-3021-4.patch
We shouldn't change POIsNull.java file. It works well when using "otherwise
all" keywords right now. I already attached a new patch(PIG-3021-4.patch).
> Split results missing records when there is null values in the column
> comparison
> --------------------------------------------------------------------------------
>
> Key: PIG-3021
> URL: https://issues.apache.org/jira/browse/PIG-3021
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.10.0
> Reporter: Chang Luo
> Assignee: Nian Ji
> Attachments: PIG-3021-2.patch, PIG-3021-3.patch, PIG-3021-4.patch,
> PIG-3021.patch
>
>
> Suppose a(x, y)
> split a into b if x==y, c otherwise;
> One will expect the union of b and c will be a. However, if x or y is null,
> the record won't appear in either b or c.
> To workaround this, I have to change to the following:
> split a into b if x is not null and y is not null and x==y, c otherwise;
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