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Posted to dev@pig.apache.org by "Eyal Allweil (JIRA)" <ji...@apache.org> on 2015/07/12 15:58:04 UTC
[jira] [Resolved] (PIG-2031) NPE in TOP
[ https://issues.apache.org/jira/browse/PIG-2031?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Eyal Allweil resolved PIG-2031.
-------------------------------
Resolution: Fixed
The issue, as it's described, no longer occurs.
> NPE in TOP
> ----------
>
> Key: PIG-2031
> URL: https://issues.apache.org/jira/browse/PIG-2031
> Project: Pig
> Issue Type: Bug
> Reporter: Jacob Perkins
> Assignee: Jacob Perkins
> Labels: newbie
> Attachments: PIG-2031.patch, toppatch.txt
>
>
> If a NULL DataBag is passed to org.apache.pig.builtin.TOP then a NPE is thrown. Consider:
> {code}
> $: cat foo.tsv
> a {(foo,1),(bar,2)}
> b
> c {(fyha,4),(asdf,9)}
> {code}
> then:
> {code}
> data = LOAD 'foo.tsv' AS (key:chararray, a_bag:bag {t:tuple (name:chararray, value:int)});
> tpd = FOREACH data {
> top_n = TOP(1, 1, a_bag);
> GENERATE
> key AS key,
> top_n AS top_n
> ;
> };
> DUMP tpd;
> {code}
> will throw an NPE when it gets to the row with no bag.
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