[HIVE-11194] Exchange partition on external tables should fail with error message when target folder already exists

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.0.0
• Fix Version/s: 1.3.0, 2.0.0
• Component/s: Hive
• Assignee: Aihua Xu
• Reporter: Aihua Xu
• Created: 07/Jul/15 21:15
• Updated: 16/Feb/16 23:50
• Resolved: 13/Jul/15 16:39

Description

Steps to repro:

Create /data/a1/pkey=1 directory with some data in it.
Create /data/a2/pkey=1 directory with some data in it.

create external table a1 (value string) partitioned by (pkey int) location '/data/a1';
create external table a2 (value string) partitioned by (pkey int) location '/data/a2';
alter table a2 add partition (pkey=1);
alter table a1 exchange partition (pkey=1) with table a2;
select * from a1 should now fail.

pkey=1 is not a partition of a1 but the folder exists. We should give an error message for that.

Issue Links

• links to: code review