[jira] [Created] (HIVE-11392) Trailing spaces in char comparisons

["Aihua Xu (JIRA)" <ji...@apache.org>]

Aihua Xu created HIVE-11392:
-------------------------------

             Summary: Trailing spaces in char comparisons
                 Key: HIVE-11392
                 URL: https://issues.apache.org/jira/browse/HIVE-11392
             Project: Hive
          Issue Type: Bug
          Components: Hive
    Affects Versions: 2.0.0
            Reporter: Aihua Xu


Following on HIVE-3745, for char type, hive should ignore trailing spaces for comparison while it seems not the case. 

{noformat}
create table chtest (a char(4));
insert into chtest values ('1');
select * from chtest where a='1'; # no whitespace, produces result 
select * from chtest where a='1  '; # 2 spaces, no result
select * from chtest where a='1  '; # 3 spaces, no result 
select * from chtest where a=cast('1 ' as char(4)); # any amount of spaces, cast to char of same length, produces result
{noformat}

It's not consistent.



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