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From "Milind Bhandarkar (JIRA)" <j...@apache.org>
Subject [jira] Commented: (PIG-832) Make import list configurable
Date Thu, 18 Jun 2009 18:24:07 GMT

    [ https://issues.apache.org/jira/browse/PIG-832?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12721396#action_12721396
] 

Milind Bhandarkar commented on PIG-832:
---------------------------------------

Olga, what I am saying is to have a default import list: which contains default UDFs (tokenize,
Max, Min, flatten), followed by piggybank contribs. And the same list can be added to / overridden
on the command-line. This has several advantages. Pig built-ins do not have to be reserved
words, and can be overridden. For example, recent mails on pig-users have mentioned that tokenize+flatten
should be a single udf. This can be done by providing a flatten (which is null), and tokenize,
which does tokenize+flatten, and existing scripts will still work. This simplifies pig grammar
as well. Users can create udf libraries, and use them with:

{code}
java -Dimport.list += `cat my-udf-lib.import`
{code}

Thoughts ?

> Make import list configurable
> -----------------------------
>
>                 Key: PIG-832
>                 URL: https://issues.apache.org/jira/browse/PIG-832
>             Project: Pig
>          Issue Type: Improvement
>    Affects Versions: 0.2.0
>            Reporter: Olga Natkovich
>            Assignee: Daniel Dai
>             Fix For: 0.3.0
>
>
> Currently, it is hardwired in PigContext.

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