Takahiko Saito created HIVE-13935:
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Summary: Changing char column of orc table to string/var char
drops white space.
Key: HIVE-13935
URL: https://issues.apache.org/jira/browse/HIVE-13935
Project: Hive
Issue Type: Bug
Affects Versions: 1.2.1
Reporter: Takahiko Saito
{noformat}
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)
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