[HIVE-13935] Changing char column of textfile table to string/varchar leaves white space.

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 1.2.1
• Target Version/s: 1.2.1
• Assignee: Unassigned
• Reporter: Takahiko Saito
• Created: 03/Jun/16 00:36
• Updated: 04/Jun/16 01:18
• Resolved: 03/Jun/16 05:17

Description

0: jdbc:hive2://os-r6-ifsmes-hiveserver2-11-4> create table test_text (c char(16)) stored as textfile;
No rows affected (0.091 seconds)
0: jdbc:hive2://os-r6-ifsmes-hiveserver2-11-4> insert into table test_text values ('horton works     ');
INFO  : Session is already open
INFO  : Dag name: insert into table test_text values ('ho...')(Stage-1)
INFO  :

INFO  : Status: Running (Executing on YARN cluster with App id application_1464222003837_0399)

INFO  : Map 1: 0/1
INFO  : Map 1: 0(+1)/1
INFO  : Map 1: 1/1
INFO  : Loading data to table default.test_text from hdfs://os-r6-ifsmes-hiveserver2-11-5.openstacklocal:8020/apps/hive/warehouse/test_text/.hive-staging_hive_2016-05-26_17-45-29_669_2888061873550824337-1/-ext-10000
INFO  : Table default.test_text stats: [numFiles=1, numRows=1, totalSize=17, rawDataSize=16]
No rows affected (6.849 seconds)
0: jdbc:hive2://os-r6-ifsmes-hiveserver2-11-4> select * from test_text;
+-------------------+--+
|    test_text.c    |
+-------------------+--+
| horton works      |
+-------------------+--+
1 row selected (0.098 seconds)
0: jdbc:hive2://os-r6-ifsmes-hiveserver2-11-4> describe test_text;
+-----------+------------+----------+--+
| col_name  | data_type  | comment  |
+-----------+------------+----------+--+
| c         | char(16)   |          |
+-----------+------------+----------+--+
1 row selected (0.127 seconds)
0: jdbc:hive2://os-r6-ifsmes-hiveserver2-11-4> alter table test_text change column c c string;
No rows affected (0.145 seconds)
0: jdbc:hive2://os-r6-ifsmes-hiveserver2-11-4> describe test_text;
+-----------+------------+----------+--+
| col_name  | data_type  | comment  |
+-----------+------------+----------+--+
| c         | string     |          |
+-----------+------------+----------+--+
1 row selected (0.127 seconds)
0: jdbc:hive2://os-r6-ifsmes-hiveserver2-11-4> select * from test_text;
+-------------------+--+
|    test_text.c    |
+-------------------+--+
| horton works      |
+-------------------+--+
1 row selected (0.066 seconds)