[jira] Commented: (PIG-1563) SUBSTRING function is broken

[Dmitriy V. Ryaboy (JIRA)]

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https://issues.apache.org/jira/browse/PIG-1563?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12902308#action_12902308
 ] 

Dmitriy V. Ryaboy commented on PIG-1563:
----------------------------------------

I wrote a unit test and it fails (due to classcastexceptions) even after I add 

{code}
    @Override
    public List<FuncSpec> getArgToFuncMapping() {
        List<FuncSpec> funcList = new ArrayList<FuncSpec>();
        funcList.add(new FuncSpec(this.getClass().getName(), 
                new Schema(Lists.newArrayList(new Schema.FieldSchema(null, 
DataType.CHARARRAY),
                        new Schema.FieldSchema(null, DataType.INTEGER),
                        new Schema.FieldSchema(null, DataType.INTEGER)))));

        return funcList;
    }
{code}

to builtin.SUBSTRING

> SUBSTRING function is broken
> ----------------------------
>
>                 Key: PIG-1563
>                 URL: https://issues.apache.org/jira/browse/PIG-1563
>             Project: Pig
>          Issue Type: Bug
>            Reporter: Olga Natkovich
>            Assignee: Yan Zhou
>             Fix For: 0.8.0
>
>
> Script:
> A = load 'studenttab10k' as (name, age, gpa);
> C = foreach A generate SUBSTRING(name, 0,5);
> E = limit C 10;
> dump E;
> Output is always empty:
> ()
> ()
> ()
> ()
> ()
> ()
> ()
> ()
> ()
> ()

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