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Date: Wed, 2 Apr 2008 07:19:24 -0700 (PDT)
From: "Benjamin Reed (JIRA)" <jira@apache.org>
To: pig-dev@incubator.apache.org
Subject: [jira] Commented: (PIG-112) Allow Java packages to be searched for
 functions.
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    [ https://issues.apache.org/jira/browse/PIG-112?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12584578#action_12584578 ] 

Benjamin Reed commented on PIG-112:
-----------------------------------

I like import as well. (We actually had it at one time, I don't know what happened to it...)

I think the problem is that the tokenizer in the parser is pretty brain dead. It's probably detecting dump as a package rather than identifier. You may want to define package as a dotted sequence of identifiers. <IDENTIFIER> ("." <IDENTIFIER>)?

> Allow Java packages to be searched for functions.
> -------------------------------------------------
>
>                 Key: PIG-112
>                 URL: https://issues.apache.org/jira/browse/PIG-112
>             Project: Pig
>          Issue Type: Improvement
>            Reporter: Craig Macdonald
>            Priority: Minor
>         Attachments: patch.import
>
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> Motivation: Why should a user have to supply the fully qualified name to his user defined function, if all the functions he ever uses are in a pre-defined list of packages?
> Currently PigContext has a list of Java packages that are searched for functions. Currently the list consists of the following 
> packages:
>  * org.apache.pig.builtin.
>  * org.apache.pig.impl.builtin.
>  * com.yahoo.pig.yst.sds.ULT.
> Users should be able to add to this packagelist.
> Example in Grunt:
> {noformat}
> include com.pig.function.package.
> {noformat}
> This has connections to imports in Java classes, namespaces in XQuery, and the PATH env var in shell scripting.
> Should be trivial to implement, or could be a property.

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