[HIVE-5437] Add map/reduce input map to MapWork/ReduceWork for multi input

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: tez-branch
• Assignee: Gunther Hagleitner
• Reporter: Gunther Hagleitner
• Created: 04/Oct/13 00:12
• Updated: 04/Oct/13 03:51
• Resolved: 04/Oct/13 03:51

Description

When there are multiple incoming edges to the tezprocessor we'll need to be able to tell which alias or tag they belong to.

In the map case:

• Potentially multiple MRInputs. Need to map those to aliases/operators

In the reduce case:

• Each tag will be represented by a logical input. We need to know which table each input belongs to.

NO PRECOMMIT TESTS (this is wip for the tez branch)

Issue Links

• blocks: HIVE-4660 Let there be Tez