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https://issues.apache.org/jira/browse/PIG-1429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13070419#comment-13070419
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Gianmarco De Francisci Morales commented on PIG-1429:
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bq. 2. Similarly, in QueryLexer.tokens, what is the rule to assigne a value to
a token? Again what should be assigned to Boolean?
Hi Zhijie,
QueryLexer.tokens is generated automatically by ANTLR, so you should not touch
it.
What you should do is to modify QueryLexer.g in order to include a BOOLEAN
token declaration (like INTEGER or FLOAT).
Also, you should modify QueryParser.g and all the other grammar (.g) files to
accept boolean expressions.
> Add Boolean Data Type to Pig
> ----------------------------
>
> Key: PIG-1429
> URL: https://issues.apache.org/jira/browse/PIG-1429
> Project: Pig
> Issue Type: New Feature
> Components: data
> Affects Versions: 0.7.0
> Reporter: Russell Jurney
> Assignee: Zhijie Shen
> Labels: boolean, gsoc2011, pig, type
> Attachments: PIG-1429_1.patch, working_boolean.patch
>
> Original Estimate: 8h
> Remaining Estimate: 8h
>
> Pig needs a Boolean data type. Pig-1097 is dependent on doing this.
> I volunteer. Is there anything beyond the work in src/org/apache/pig/data/
> plus unit tests to make this work?
> This is a candidate project for Google summer of code 2011. More information
> about the program can be found at http://wiki.apache.org/pig/GSoc2011
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