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https://issues.apache.org/jira/browse/DRILL-364?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Jinfeng Ni updated DRILL-364:
-----------------------------
Attachment: Drill-364.patch.1.txt
This patch contains the fix for issue Drill-364.
> 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.1.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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