Add export/import facilities to the hive system
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Key: HIVE-1918
URL: https://issues.apache.org/jira/browse/HIVE-1918
Project: Hive
Issue Type: New Feature
Components: Query Processor
Reporter: Krishna Kumar
This is an enhancement request to add export/import features to hive.
With this language extension, the user can export the data of the table - which
may be located in different hdfs locations in case of a partitioned table - as
well as the metadata of the table into a specified output location. This output
location can then be moved over to another different hadoop/hive instance and
imported there.
This should work independent of the source and target metastore dbms used; for
instance, between derby and mysql.
For partitioned tables, the ability to export/import a subset of the partition
must be supported.
Howl will add more features on top of this: The ability to create/use the
exported data even in the absence of hive, using MR or Pig. Please see
http://wiki.apache.org/pig/Howl/HowlImportExport for these details.
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