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https://issues.apache.org/jira/browse/PIG-3314?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13660469#comment-13660469
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Johnny Zhang commented on PIG-3314:
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the symbol I can think include (from high priority to low priority):
1. Pig keyword
2. default
3. Pig properties
4. macro name
5. macro argument
6. builtin UDF
7. custom UDF
8. script arguments
we may not be able to take care all of them, please add new symbol categories
you think matters, also you can suggest other order which you think more
reasonable.
> make better symbol resolving order in Pig
> -----------------------------------------
>
> Key: PIG-3314
> URL: https://issues.apache.org/jira/browse/PIG-3314
> Project: Pig
> Issue Type: Improvement
> Components: grunt, parser
> Reporter: Johnny Zhang
>
> this idea comes when we trying to resolve PIG-2248, please take a look the
> comments starts from
> https://issues.apache.org/jira/browse/PIG-2248?focusedCommentId=13648831&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-13648831
> Basically, we want sure different level of symbol in Pig, when they have name
> conflict, higher side symbol can mask lover side symbol.
> We want first make an agreement on the symbol, then we are going to
> (1) add unit tests to make sure it is working as expected, otherwise, open
> jira and fix it
> (2) document the usage
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