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https://issues.apache.org/jira/browse/PIG-904?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12788769#action_12788769
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Jeff Zhang commented on PIG-904:
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BTW, I noticed that the logic in TypeCheckingVisitor is a bit complex.
I think we need a clear documentation about the type checking and some code
re-factoring work.
> Conversion from double to chararray for udf input arguments does not occur
> --------------------------------------------------------------------------
>
> Key: PIG-904
> URL: https://issues.apache.org/jira/browse/PIG-904
> Project: Pig
> Issue Type: Bug
> Affects Versions: 0.3.1
> Reporter: Pradeep Kamath
>
> Script showing the problem:
> {noformat}
> "a = load '/user/pig/tests/data/singlefile/studenttab10k' as (name, age,
> gpa:double); b = foreach a generate CONCAT(gpa, 'dummy'); dump b;"
> Error shown:
> 2009-08-03 17:04:27,573 [main] ERROR org.apache.pig.tools.grunt.Grunt - ERROR
> 1045: Could not infer the matching function for org.apache.pig.builtin.CONCAT
> as multiple or none of them fit. Please use an explicit cast.
> {noformat}
> The error goes away if gpa is casted to chararray.
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