[IMPALA-2952] Have frontend annotate filters with partitioning metadata

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: Impala 2.5.0
• Fix Version/s: Impala 2.5.0
• Component/s: Distributed Exec
• Target Version: Impala 2.5.0
• Assignee: Dimitris Tsirogiannis
• Reporter: Henry Robinson
• Created: 04/Feb/16 22:33
• Updated: 13/Feb/16 16:31
• Resolved: 13/Feb/16 16:31

Description

Rather than have the backend figure it out, the frontend should annotate the filters it sends with information about the following:

1. Whether the join producer of the filter is a broadcast or partitioned join.
2. Whether the filter expressions are bound by partition column slots (i.e. is this filter applicable to partitions)

Doing so in the backend requires a hack, the frontend should be able to do better.