alter table rename should rename hdfs location of table as well
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Key: HIVE-1116
URL: https://issues.apache.org/jira/browse/HIVE-1116
Project: Hadoop Hive
Issue Type: Bug
Reporter: Joydeep Sen Sarma
if the location is not an external location - this would be safer.
the problem right now is that it's tricky to use the drop and rename way of
writing new data into a table. consider:
Initialization block:
drop table a_tmp
create table a_tmp like a;
Loading block:
load data <newdata> into a_tmp;
drop table a;
alter table a_tmp rename to a;
this looks safe. but it's not. if one runs this multiple times - then data is
lost (since 'a' is pointing to 'a_tmp''s location after any iteration. and
dropping table 'a' blows away loaded data in the next iteration).
if the location is being managed by Hive - then 'rename' should switch location
as well.
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