Navis created HIVE-6133:
---------------------------
Summary: Support partial partition exchange
Key: HIVE-6133
URL: https://issues.apache.org/jira/browse/HIVE-6133
Project: Hive
Issue Type: Improvement
Components: Query Processor
Reporter: Navis
Assignee: Navis
Priority: Minor
Current alter exchange coerces source and destination table to have same
partition columns. But source table has sub-set of partitions and provided
partition spec supplements to be a complete partition spec, it need not to be
that.
For example,
{nofomat}
CREATE TABLE exchange_part_test1 (f1 string) PARTITIONED BY (ds STRING);
CREATE TABLE exchange_part_test2 (f1 string)
ALTER TABLE exchange_part_test1 EXCHANGE PARTITION (ds='2013-04-05') WITH TABLE
exchange_part_test2;
{nofomat}
or
{nofomat}
CREATE TABLE exchange_part_test1 (f1 string) PARTITIONED BY (ds STRING, hr
STRING);
CREATE TABLE exchange_part_test2 (f1 string) PARTITIONED BY (hr STRING)
ALTER TABLE exchange_part_test1 EXCHANGE PARTITION (ds='2013-04-05') WITH TABLE
exchange_part_test2;
{nofomat}
can be possible.
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