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https://issues.apache.org/jira/browse/HIVE-10980?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14583655#comment-14583655
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Illya Yalovyy commented on HIVE-10980:
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I have a patch for this. Will upload it soon.
> Merge of dynamic partitions loads all data to default partition
> ---------------------------------------------------------------
>
> Key: HIVE-10980
> URL: https://issues.apache.org/jira/browse/HIVE-10980
> Project: Hive
> Issue Type: Bug
> Components: Hive
> Affects Versions: 0.14.0
> Environment: HDP 2.2.4 (also reproduced on apache hive built from
> trunk)
> Reporter: Illya Yalovyy
>
> Conditions that lead to the issue:
> 1. Execution engine set to MapReduce
> 2. Partition columns have different types
> 3. Both static and dynamic partitions are used in the query
> 4. Dynamically generated partitions require merge
> Result: Final data is loaded to "__HIVE_DEFAULT_PARTITION__".
> Steps to reproduce:
> set hive.exec.dynamic.partition=true;
> set hive.exec.dynamic.partition.mode=strict;
> set hive.optimize.sort.dynamic.partition=false;
> set hive.merge.mapfiles=true;
> set hive.merge.mapredfiles=true;
> set hive.input.format=org.apache.hadoop.hive.ql.io.HiveInputFormat;
> set hive.execution.engine=mr;
> create external table sdp (
> dataint bigint,
> hour int,
> req string,
> cid string,
> caid string
> )
> row format delimited
> fields terminated by ',';
> load data local inpath '../../data/files/dynpartdata1.txt' into table sdp;
> load data local inpath '../../data/files/dynpartdata2.txt' into table sdp;
> ...
> load data local inpath '../../data/files/dynpartdataN.txt' into table sdp;
> create table tdp (cid string, caid string)
> partitioned by (dataint bigint, hour int, req string);
> insert overwrite table tdp partition (dataint=20150316, hour=16, req)
> select cid, caid, req from sdp where dataint=20150316 and hour=16;
> select * from tdp order by caid;
> show partitions tdp;
> Example of the input file:
> 20150316,16,reqA,clusterIdA,cacheId1
> 20150316,16,reqB,clusterIdB,cacheId2
> 20150316,16,reqA,clusterIdC,cacheId3
> 20150316,16,reqD,clusterIdD,cacheId4
> 20150316,16,reqA,clusterIdA,cacheId5
> Actual result:
> clusterIdA cacheId1 20150316 16
> __HIVE_DEFAULT_PARTITION__
> clusterIdA cacheId1 20150316 16
> __HIVE_DEFAULT_PARTITION__
> clusterIdB cacheId2 20150316 16
> __HIVE_DEFAULT_PARTITION__
> clusterIdC cacheId3 20150316 16
> __HIVE_DEFAULT_PARTITION__
> clusterIdD cacheId4 20150316 16
> __HIVE_DEFAULT_PARTITION__
> clusterIdA cacheId5 20150316 16
> __HIVE_DEFAULT_PARTITION__
> clusterIdD cacheId8 20150316 16
> __HIVE_DEFAULT_PARTITION__
> clusterIdB cacheId9 20150316 16
> __HIVE_DEFAULT_PARTITION__
>
> dataint=20150316/hour=16/req=__HIVE_DEFAULT_PARTITION__
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