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https://issues.apache.org/jira/browse/PIG-2975?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13478213#comment-13478213
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Jonathan Coveney commented on PIG-2975:
---------------------------------------
Quick first answer to your questions:
1. Hrm, this is a tricky one. I think the answer is yes (and if it is yes, we
should change the constructor to expect a DataByteArray). The issue is this: in
Pig, you can have an unknown type (ie it has a name, but not type), but under
the hood is it an int or whatever. I'm wondering if there is any case when Pig
would do the cast, without making this knowledge available to the work flow. I
THINK the answer is no, so I would follow this course, and if it causes errors,
then we'll refactor to fix that.
2. I am looking at the ByteWritable code here:
http://grepcode.com/file/repository.cloudera.com/content/repositories/releases/com.cloudera.hadoop/hadoop-core/0.20.2-737/org/apache/hadoop/io/BytesWritable.java
it looks like it just shuffles around the pointer to the same bytes, so it
should be ok.
> TestTypedMap.testOrderBy failing with incorrect result
> -------------------------------------------------------
>
> Key: PIG-2975
> URL: https://issues.apache.org/jira/browse/PIG-2975
> Project: Pig
> Issue Type: Sub-task
> Affects Versions: 0.11
> Reporter: Koji Noguchi
> Assignee: Koji Noguchi
> Priority: Blocker
> Fix For: 0.11
>
> Attachments: pig-2975-trunk_v01.txt
>
>
> Looked at
> {noformat}
> junit.framework.AssertionFailedError
> at org.apache.pig.test.TestTypedMap.testOrderBy(TestTypedMap.java:352)
> {noformat}
> This looks like a valid test case failing with incorrect result.
> {noformat}
> % cat test/orderby.txt
> [key#1,key9#23]
> [key#3,key3#2]
> [key#22]
> % cat test/orderby.pig
> a = load 'test/orderby.txt' as (m:[]);
> b = foreach a generate m#'key' as b0;
> dump b;
> c = order b by b0;
> dump c;
> % java ... org.apache.pig.Main -x local test/orderby.pig
> [dump b]
> (1)
> (3)
> (22)
> ...
> [dump c]
> (1)
> (1)
> (22)
> %
> where did the '(3)' go?
> {noformat}
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