[HIVE-3422] Support partial partition specifications in when enabling/disabling protections in Hive

• Type: Improvement
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.10.0
• Component/s: Metastore
• Hadoop Flags: Reviewed

Release Note

For alter table with partial partition spec, DDLSemanticAnalyzer will call table.getPartitions
to get all the partitions and insert them to outputs. DDLTask::alterTable will get all the partitions for
ALTERPROTECTMODE, and alter the mode for all the partitions.

• Assignee: Jean Xu
• Reporter: Jean Xu
• Created: 31/Aug/12 23:51
• Updated: 10/Jan/13 19:53
• Resolved: 16/Sep/12 17:17

Description

Currently if you have a table t with partition columns c1 and c2 the following command works:
ALTER TABLE t PARTITION (c1 = 'x', c2 = 'y') ENABLE NO_DROP;

The following does not:
ALTER TABLE t PARTITION (c1 = 'x') ENABLE NO_DROP;

We would like all existing partitions for which c1 = 'x' to have NO_DROP enabled when a user runs the above command