[HIVE-8654] CBO: parquet_ctas test returns incorrect results

• Type: Sub-task
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Fix Version/s: 0.14.0
• Component/s: CBO
• Assignee: Sergey Shelukhin
• Reporter: Sergey Shelukhin
• Created: 29/Oct/14 20:15
• Updated: 13/Nov/14 19:41
• Resolved: 30/Oct/14 20:24

Description

I am investigating right now.
The issue is specific to Parquet:

set hive.cbo.enable=true;
drop table staging;
drop table parquet_ctas;

create table staging (key int, value string) stored as textfile;
insert into table staging select * from src order by key limit 10;
select * from staging;

create table parquet_ctas stored as parquet as select * from staging;
select * from parquet_ctas;
create table orc_ctas stored as orc as select * from staging;
select * from orc_ctas;
create table txt_ctas stored as textfile as select * from staging;
select * from txt_ctas;

The parquet query returns all NULLs with CBO on.