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From "Jacques Nadeau (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (DRILL-364) Casting to VarChar throws error CompileException
Date Tue, 04 Mar 2014 16:49:21 GMT

     [ https://issues.apache.org/jira/browse/DRILL-364?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jacques Nadeau resolved DRILL-364.
----------------------------------

    Resolution: Fixed

Added in 153c727

> Casting to VarChar throws error CompileException
> ------------------------------------------------
>
>                 Key: DRILL-364
>                 URL: https://issues.apache.org/jira/browse/DRILL-364
>             Project: Apache Drill
>          Issue Type: Bug
>            Reporter: Mehant Baid
>            Assignee: Jinfeng Ni
>            Priority: Minor
>         Attachments: Drill-364.patch.2.txt
>
>
> This can be reproduced using the below physical plan:
> {       
>     head:{  
>         type:"APACHE_DRILL_PHYSICAL",
>         version:"1",
>         generator:{
>             type:"manual"
>         }     
>     },      
>         graph:[
>         {
>             @id:1,
>             pop:"json-scan",
>             entries: [
>                 {
>                     path : "/tmp/scan.json"
>                 }
>             ],
>             storageengine: {
>                 "type": "json",
>                 "dfsName": "file:///"
>             }
>         },
>         {
>             pop:"project",
>             @id:2,
>             child: 1,
>             exprs: [ { 
>               ref: "VarCharCast",
>               expr: "cast(integer as varchar(30))"
>             } ]
>         },
>         {
>             @id: 3,
>             child: 2,
>             pop: "screen"   
>         }
>     ]     
> } 
> The input file, "/tmp/scan.json" is as follows
> {
>   "integer" : 2008
> }
> It fails with the error: "org.codehaus.commons.compiler.CompileException
> Line 55, Column 38: No applicable constructor/method found for actual parameters"
> From the error, its clear that its not able to find a method. The line its complaining
about is:
> vv6 .getMutator().set((outIndex), out5);
> vv6 is a VarCharVector and out5 is a NullableVarCharHolder. So its unable to find a set()
function with parameters (int, NullableVarCharHolder). We do have a function in VarCharVector
that matches the required signature but its 'protected' hence cannot be called from here.
The only way to call that function is from within the set function of NullableVarCharVector.

> Looks like a minor bug in the generated code for project, vv6 should be declared a NullableVarCharVector.




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