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https://issues.apache.org/jira/browse/HIVE-3451?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on HIVE-3451 started by Gang Tim Liu.
> map-reduce jobs does not work for a partition containing sub-directories
> ------------------------------------------------------------------------
>
> Key: HIVE-3451
> URL: https://issues.apache.org/jira/browse/HIVE-3451
> Project: Hive
> Issue Type: Bug
> Components: Query Processor
> Reporter: Namit Jain
> Assignee: Gang Tim Liu
>
> Consider the following test:
> -- The test verifies that sub-directories are supported for versions of hadoop
> -- where MAPREDUCE-1501 is fixed. So, enable this test only for hadoop 23.
> -- INCLUDE_HADOOP_MAJOR_VERSIONS(0.23)
> CREATE TABLE fact_daily(x int) PARTITIONED BY (ds STRING);
> CREATE TABLE fact_tz(x int) PARTITIONED BY (ds STRING, hr STRING)
> LOCATION 'pfile:${system:test.tmp.dir}/fact_tz';
> INSERT OVERWRITE TABLE fact_tz PARTITION (ds='1', hr='1')
> SELECT key+11 FROM src WHERE key=484;
> ALTER TABLE fact_daily SET TBLPROPERTIES('EXTERNAL'='TRUE');
> ALTER TABLE fact_daily ADD PARTITION (ds='1')
> LOCATION 'pfile:${system:test.tmp.dir}/fact_tz/ds=1';
> set mapred.input.dir.recursive=true;
> SELECT * FROM fact_daily WHERE ds='1';
> SELECT count(1) FROM fact_daily WHERE ds='1';
> Say, the above file was named: recursive_dir.q
> and we ran the test for hadoop 23:
> by executing:
> ant test -Dhadoop.mr.rev=23 -Dtest.print.classpath=true
> -Dhadoop.version=2.0.0-alpha -Dhadoop.security.version=2.0.0-alpha
> -Dtestcase=TestCliDriver -Dqfile=recursive_dir.q
> The select * from the table works fine, but the last command does not work
> since it requires a map-reduce job.
> This will prevent other features which are creating sub-directories to add
> any tests which requires a map-reduce job. The work-around is to issue
> queries which do not require map-reduce jobs.
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