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https://issues.apache.org/jira/browse/PIG-1931?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Richard Ding resolved PIG-1931.
-------------------------------
Resolution: Fixed
Hadoop Flags: [Reviewed]
patches are committed to trunk.
> Integrate Macro Expansion with New Parser
> -----------------------------------------
>
> Key: PIG-1931
> URL: https://issues.apache.org/jira/browse/PIG-1931
> Project: Pig
> Issue Type: Bug
> Components: impl
> Affects Versions: 0.9.0
> Reporter: Richard Ding
> Assignee: Richard Ding
> Fix For: 0.9.0
>
> Attachments: PIG-1931_1.patch, PIG-1931_2.patch, PIG-1931_3.patch,
> PIG-1931_4.patch
>
>
> Currently Macro expansion is implemented as a preprocessor (PIG-1793) so that
> it can work with the old parser. Now the new parser replaced old parser in
> trunk and we can integrate macro expansion into the new parser. This has many
> advantages such as better error reporting, less code and making Macro part of
> Pig Latin.
> To aid debugging, Pig command line option -r (dryrun) will produce a script
> with expanded macros (in addition to the script with substituted parameters).
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