[jira] [Created] (HIVE-27370) SUBSTR UDF return '?' against 4-bytes character

["Ryu Kobayashi (Jira)" <ji...@apache.org>]

Ryu Kobayashi created HIVE-27370:
------------------------------------

             Summary: SUBSTR UDF return '?' against 4-bytes character
                 Key: HIVE-27370
                 URL: https://issues.apache.org/jira/browse/HIVE-27370
             Project: Hive
          Issue Type: Bug
          Components: UDF
    Affects Versions: All Versions
            Reporter: Ryu Kobayashi


SUBSTR doesn't seem to support 4-byte characters. This also happens in master branch. Also, this does not happen in vectorized mode, so it is a problem specific to non-vectorized mode. An example is below:
{code:java}
-- vectorized mode
create temporary table foo (str string) stored as orc;
insert into foo values('安佐町大字久地字野𨵱4614番地'), ('あa🤎いiうu');
SELECT
  SUBSTR(str, 1, 10) as a1,
  SUBSTR(str, 10, 3) as a2,
  SUBSTR(str, -7) as a3,
  substr(str, 1, 3) as b1,
  substr(str, 3) as b2,
  substr(str, -5) as b3
from foo
;
安佐町大字久地字野𨵱  𨵱4614番地  安佐町       町大字久地字野𨵱4614番地     614番地
あa🤎             あa🤎いiうu        あa🤎        🤎いiうu    🤎いiうu {code}
{code:java}
-- non-vectorized
SELECT
  SUBSTR('安佐町大字久地字野𨵱4614番地', 1, 10) as a1,
  SUBSTR('安佐町大字久地字野𨵱4614番地', 10, 3) as a2,
  SUBSTR('安佐町大字久地字野𨵱4614番地', -7) as a3,
  substr('あa🤎いiうu', 1, 3) as b1,
  substr('あa🤎いiうu', 3) as b2,
  substr('あa🤎いiうu', -5) as b3
; 
安佐町大字久地字野?    �4   ?4614番地     あa?   �いiうu    ?いiうu{code}
 



--
This message was sent by Atlassian Jira
(v8.20.10#820010)