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https://issues.apache.org/jira/browse/PIG-2880?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13468690#comment-13468690
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Dmitriy V. Ryaboy commented on PIG-2880:
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Ah, forgot about the second argument. In that case, just take care of nulls,
wrong # or type of arguments, etc, in your code.
Also note you can provide the @OutputSchema annotation to tell Pig what to
expect to come out of this UDF.
> Pig current releases lack a UDF charAt.This UDF returns the char value at the
> specified index.
> ----------------------------------------------------------------------------------------------
>
> Key: PIG-2880
> URL: https://issues.apache.org/jira/browse/PIG-2880
> Project: Pig
> Issue Type: New Feature
> Components: piggybank
> Affects Versions: 0.10.0
> Reporter: Sabir Ayappalli
>
> Pig current releases lack a UDF charAt.This UDF returns the char value at the
> specified index. An index ranges from 0 to length() - 1. The first char value
> of the sequence is at index 0, the next at index 1, and so on.
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