Mehant Baid created DRILL-364:
---------------------------------
Summary: 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: Mehant Baid
Priority: Minor
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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