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https://issues.apache.org/jira/browse/PIG-1429?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13078999#comment-13078999
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Thejas M Nair commented on PIG-1429:
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My opinion on what should be the behavior for casts to/from boolean -
- explicit cast from numeric types and chararray to boolean and vice versa
should be allowed
- implicit conversions from boolean to other types in arithmetic/boolean
expressions should not be done. This is similar to the behavior in case of
chararray.
- The cast from a string (bytearray/chararray) to boolean should be false only
if the string is 'false'. If the value is not 'true' or 'false' (case
insensitive), I think it is better to return null, and increment the counter
that keeps track of conversion errors.
> 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, PIG-1429_2.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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