Eugene Koifman created HIVE-13212:
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Summary: locking too coarse for update/delete on a pratition
Key: HIVE-13212
URL: https://issues.apache.org/jira/browse/HIVE-13212
Project: Hive
Issue Type: Bug
Components: Transactions
Affects Versions: 1.2.1
Reporter: Eugene Koifman
Assignee: Eugene Koifman
create table acidTblPart (a int, b int) partitioned by (p string) clustered by
(a) into " + BUCKET_COUNT + " buckets stored as orc TBLPROPERTIES
('transactional'='true')
update acidTblPart set b = 17 where p = 1
This acquires share_write on the table while based on p = 1 we should be able
to figure out that only 1 partition is affected and only lock the partition
Same should apply to DELETE
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