Eugene Koifman created HIVE-18021:
-------------------------------------
Summary: Insert overwrite on acid table with Union All
optimizations
Key: HIVE-18021
URL: https://issues.apache.org/jira/browse/HIVE-18021
Project: Hive
Issue Type: Bug
Components: Transactions
Affects Versions: 3.0.0
Reporter: Eugene Koifman
This is a followup from HIVE-14988.
T is unbucketed acid table
{noformat}
insert into T select a,b from S union all select a,b from S1
{noformat}
will create a separate subdirectory for each leg of the union in the target
table
(automatically on Tez, with some props enabled on MR)
Regular Insert will make each subdirectory be a delta_x_x_0, delta_x_x_1. See
HIVE-15899.
There is no such suffix mechanism for base_x/.
Need to figure how this should work.
--
This message was sent by Atlassian JIRA
(v6.4.14#64029)
