Ruslan Dautkhanov created HIVE-14795:
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Summary: ALTER TABLE ... RENAME [OVERWRITE] [TO] to overwrite
existing table
Key: HIVE-14795
URL: https://issues.apache.org/jira/browse/HIVE-14795
Project: Hive
Issue Type: Improvement
Components: Hive
Affects Versions: 2.1.0, 2.0.0, 1.1.0, 1.2.0
Reporter: Ruslan Dautkhanov
It would be great to Have in OVERWRITE option in Hive's rename command:
ALTER TABLE ... RENAME [OVERWRITE] [TO] to overwrite existing table, if it
exists.
There are many commands like DROP TABLE IF EXISTS, LOAD DATA .. OVERWRITE that
tell how to deal if table already exists.
We currently have to check in our ETL pipelines (outside of Hive) if table
already exists and call different actions depending on that result.
It would simplify that logic quite a bit.
Closest in functionaility I found in MySQL:
http://bugs.mysql.com/bug.php?id=36271
This is not a compatibility breaking change.
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