Hive Variables
--------------
Key: HIVE-1096
URL: https://issues.apache.org/jira/browse/HIVE-1096
Project: Hadoop Hive
Issue Type: New Feature
Reporter: Edward Capriolo
Assignee: Edward Capriolo
>From mailing list:
--Amazon Elastic MapReduce version of Hive seems to have a nice feature called
"Variables." Basically you can define a variable via command-line while
invoking hive with -d DT=2009-12-09 and then refer to the variable via ${DT}
within the hive queries. This could be extremely useful. I can't seem to find
this feature even on trunk. Is this feature currently anywhere in the roadmap?--
This could be implemented in many places.
A simple place to put this is
in Driver.compile or Driver.run we can do string substitutions at that level,
and further downstream need not be effected.
There could be some benefits to doing this further downstream, parser,plan. but
based on the simple needs we may not need to overthink this.
I will get started on implementing in compile unless someone wants to discuss
this more.
--
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.
