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From "alex kim (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HIVE-5907) after adding new column to hive partition table,the new columns'value will be null be for reload all partitions
Date Thu, 28 Nov 2013 03:46:35 GMT
alex kim created HIVE-5907:
------------------------------

             Summary: after adding new column to hive partition table,the new columns'value
will be null be for reload all partitions
                 Key: HIVE-5907
                 URL: https://issues.apache.org/jira/browse/HIVE-5907
             Project: Hive
          Issue Type: Bug
            Reporter: alex kim
            Priority: Critical


when add new columns on external partition table ,query new column will get NULL value

0: jdbc:hive2://localhost:10000> create external table test_alex1_replacereloadpart (id
string,myname string) partitioned by(dt string);
No rows affected (0.395 seconds)
0: jdbc:hive2://localhost:10000>  alter table test_alex1_replacereloadpart add partition
(dt='2013-11-28') location '2013-11-28';
No rows affected (0.339 seconds)
0: jdbc:hive2://localhost:10000> insert overwrite table test_alex1_replacereloadpart partition(dt='2013-11-28')
select id,myname from test_alex1;
+-----+---------+
| id  | myname  |
+-----+---------+
+-----+---------+
No rows selected (24.073 seconds)
0: jdbc:hive2://localhost:10000> select * from test_alex1_replacereloadpart;
+-------------------------------------------------------------------+---------+-------------+
|                                id                                 | myname  |     dt   
  |
+-------------------------------------------------------------------+---------+-------------+
| 20501B55B0C64273A5316C5078442569E425CC318ADC454CA163D72503489436  | 1       | 2013-11-28
 |
| 20501B55B0C64273A5316C5078442569E3D87D24CA4E42D9A200E391417A7994  | 1       | 2013-11-28
 |
| 20501B55B0C64273A5316C5078442569814086424B2942919C97DF1D2D2C1F55  | 1       | 2013-11-28
 |
| 205018A818FB43A38CC29FF701E47D8B205018A818FB43A38CC29FF701E47D8B  | 1       | 2013-11-28
 |
| 205016D04EDA435CB578D059F931221EB9F06E42815243A486B611B96366DD01  | 1       | 2013-11-28
 |
| 205016D04EDA435CB578D059F931221E205016D04EDA435CB578D059F931221E  | 1       | 2013-11-28
 |
| 20500D24895641DBBBDBE71640E57887EA06A0AEB4324117B8125FC815297B36  | 1       | 2013-11-28
 |
| 205006E8A3EB4CA1997D947D89C5FD1B205006E8A3EB4CA1997D947D89C5FD1B  | 1       | 2013-11-28
 |
| 2050054E19B44C4D992D97C1661A26C32050054E19B44C4D992D97C1661A26C3  | 1       | 2013-11-28
 |
| 204fa32a43ef4aefac3b391562c5a25b7149D57B47E74C6F8C22CC30292FADF1  | 1       | 2013-11-28
 |
+-------------------------------------------------------------------+---------+-------------+
0: jdbc:hive2://localhost:10000> alter table test_alex1_replacereloadpart replace columns
(id string,myname string,bee string);
No rows affected (0.202 seconds)

i delete old data from hive partition dir ,and add new data into the same dir

0: jdbc:hive2://localhost:10000> select * from test_alex1_replacereloadpart;
+-------------------------------------------------------------------+---------+------+-------------+
|                                id                                 | myname  | bee  |   
 dt      |
+-------------------------------------------------------------------+---------+------+-------------+
| 20501B55B0C64273A5316C5078442569E425CC318ADC454CA163D72503489436  | 1       |      | 2013-11-28
 |
| 20501B55B0C64273A5316C5078442569E3D87D24CA4E42D9A200E391417A7994  | 1       |      | 2013-11-28
 |
| 20501B55B0C64273A5316C5078442569814086424B2942919C97DF1D2D2C1F55  | 1       |      | 2013-11-28
 |
| 205018A818FB43A38CC29FF701E47D8B205018A818FB43A38CC29FF701E47D8B  | 1       |      | 2013-11-28
 |
| 205016D04EDA435CB578D059F931221EB9F06E42815243A486B611B96366DD01  | 1       |      | 2013-11-28
 |
| 205016D04EDA435CB578D059F931221E205016D04EDA435CB578D059F931221E  | 1       |      | 2013-11-28
 |
| 20500D24895641DBBBDBE71640E57887EA06A0AEB4324117B8125FC815297B36  | 1       |      | 2013-11-28
 |
| 205006E8A3EB4CA1997D947D89C5FD1B205006E8A3EB4CA1997D947D89C5FD1B  | 1       |      | 2013-11-28
 |
| 2050054E19B44C4D992D97C1661A26C32050054E19B44C4D992D97C1661A26C3  | 1       |      | 2013-11-28
 |
| 204fa32a43ef4aefac3b391562c5a25b7149D57B47E74C6F8C22CC30292FADF1  | 1       |      | 2013-11-28
 |
+-------------------------------------------------------------------+---------+------+-------------+

after reload the partition ,the new data appear

0: jdbc:hive2://localhost:10000> alter table test_alex1_replacereloadpart drop partition
(dt='2013-11-28');
No rows affected (0.286 seconds)

0: jdbc:hive2://localhost:10000> alter table test_alex1_replacereloadpart add partition
(dt='2013-11-28') location '2013-11-28';
No rows affected (0.551 seconds)
0: jdbc:hive2://localhost:10000> select * from test_alex1_replacereloadpart;
+-------------------------------------------------------------------+---------+------+-------------+
|                                id                                 | myname  | bee  |   
 dt      |
+-------------------------------------------------------------------+---------+------+-------------+
| 20501B55B0C64273A5316C5078442569E425CC318ADC454CA163D72503489436  | 1       | 10   | 2013-11-28
 |
| 20501B55B0C64273A5316C5078442569E3D87D24CA4E42D9A200E391417A7994  | 1       | 9    | 2013-11-28
 |
| 20501B55B0C64273A5316C5078442569814086424B2942919C97DF1D2D2C1F55  | 1       | 8    | 2013-11-28
 |
| 205018A818FB43A38CC29FF701E47D8B205018A818FB43A38CC29FF701E47D8B  | 1       | 7    | 2013-11-28
 |
| 205016D04EDA435CB578D059F931221EB9F06E42815243A486B611B96366DD01  | 1       | 6    | 2013-11-28
 |
| 205016D04EDA435CB578D059F931221E205016D04EDA435CB578D059F931221E  | 1       | 5    | 2013-11-28
 |
| 20500D24895641DBBBDBE71640E57887EA06A0AEB4324117B8125FC815297B36  | 1       | 4    | 2013-11-28
 |
| 205006E8A3EB4CA1997D947D89C5FD1B205006E8A3EB4CA1997D947D89C5FD1B  | 1       | 3    | 2013-11-28
 |
| 2050054E19B44C4D992D97C1661A26C32050054E19B44C4D992D97C1661A26C3  | 1       | 2    | 2013-11-28
 |
| 204fa32a43ef4aefac3b391562c5a25b7149D57B47E74C6F8C22CC30292FADF1  | 1       | 1    | 2013-11-28
 |
+-------------------------------------------------------------------+---------+------+-------------+




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