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https://issues.apache.org/jira/browse/PIG-1963?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Thejas M Nair updated PIG-1963:
-------------------------------
Attachment: PIG-1963.1.patch
PIG-1963.1.patch - unit tests, test-patch with 0.8 branch. Running them for
trunk.
> in nested foreach, accumutive udf taking input from order-by does not get
> results in order
> ------------------------------------------------------------------------------------------
>
> Key: PIG-1963
> URL: https://issues.apache.org/jira/browse/PIG-1963
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.8.0, 0.9.0
> Reporter: Thejas M Nair
> Attachments: MYCONCATBAG.java, PIG-1963.1.patch
>
>
> This happens only when secondary sort is not being used for the order-by.
> For example -
> {code}
> a1 = load 'fruits.txt' as (f1:int,f2);
> a2 = load 'fruits.txt' as (f1:int,f2);
> b = cogroup a1 by f1, a2 by f1;
> d = foreach b {
> sort1 = order a1 by f2;
> sort2 = order a2 by f2; -- secondary sort not getting used here,
> MYCONCATBAG gets results in wrong order
> generate group, MYCONCATBAG(sort1.f1), MYCONCATBAG(sort2.f2);
> }
> -- explain d;
> dump d;
> {code}
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