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https://issues.apache.org/jira/browse/DRILL-6722?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16671736#comment-16671736
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Oleg Zinoviev commented on DRILL-6722:
--------------------------------------
[~shuifeng]
For ClassNode:
{code:java}
ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_FRAMES);
generatedMerged.accept(cw);
Files.write(Paths.get("/home/ozinoviev/Class.class"), cw.toByteArray());
{code}
> Query from parquet with case-then and arithmetic operation returns a wrong
> result
> ---------------------------------------------------------------------------------
>
> Key: DRILL-6722
> URL: https://issues.apache.org/jira/browse/DRILL-6722
> Project: Apache Drill
> Issue Type: Bug
> Components: Execution - Codegen
> Affects Versions: 1.14.0
> Reporter: Oleg Zinoviev
> Priority: Major
> Attachments: JaininoJava.class, JaininoJava2_merged.class,
> correct.csv, result.csv
>
>
> Steps to reproduce:
> 1) Create sample table:
> {code:sql}
> create table dfs.tmp.test as
> select 1 as a, 2 as b
> union all
> select 3 as a, 2 as b
> union all
> select 1 as a, 4 as b
> union all
> select 2 as a, 2 as b
> {code}
> 2) Execute query:
> {code:sql}
> select
> case when s.a > s.b then s.a else s.b end as b,
> abs(s.a - s.b) as d
> from dfs.tmp.test s
> {code}
> 3) Drill returns: [^result.csv]
> 4) Result of query without parquet:
> {code:sql}
> select
> case when s.a > s.b then s.a else s.b end as b,
> abs(s.a - s.b) as d
> from (
> select 1 as a, 2 as b
> union all
> select 3 as a, 2 as b
> union all
> select 1 as a, 4 as b
> union all
> select 2 as a, 2 as b
> ) s
> {code}
> [^correct.csv]
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