[
https://issues.apache.org/jira/browse/PIG-2248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13648863#comment-13648863
]
Johnny Zhang commented on PIG-2248:
-----------------------------------
Daniel, this is a good idea, and in bigger picture. 3 steps I am think of:
1. decide the symbol resolving order
2. check the masking is working for designed order
3. document the usage.
what do you think? Maybe we should put logic of this patch into some common
place, extend it for all symbol resolving check.
> Pig parser does not detect when a macro name masks a UDF name
> -------------------------------------------------------------
>
> Key: PIG-2248
> URL: https://issues.apache.org/jira/browse/PIG-2248
> Project: Pig
> Issue Type: Bug
> Components: parser
> Affects Versions: 0.9.0
> Reporter: Alan Gates
> Assignee: Johnny Zhang
> Priority: Minor
> Attachments: PIG-2248.patch.txt, PIG-2248.patch.txt,
> PIG-2248.patch.txt, PIG-2248.patch.txt
>
>
> Pig accepts a macro like:
> {code}
> define COUNT(in_relation, min_gpa) returns c {
> b = filter $in_relation by gpa >= $min_gpa;
> $c = foreach b generate age, name;
> }
> {code}
> This should produce a warning that it is masking a UDF.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira
