[HIVE-11387] CBO: Calcite Operator To Hive Operator (Calcite Return Path) : fix reduce_deduplicate optimization

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.3.0, 2.0.0
• Component/s: CBO
• Assignee: Pengcheng Xiong
• Reporter: Pengcheng Xiong
• Created: 28/Jul/15 00:25
• Updated: 27/Feb/24 22:23
• Resolved: 11/Aug/15 01:06

Description

The main problem is that, due to return path, now we may have (RS1-GBY2)-(RS3-GBY4) when map.aggr=false, i.e., no map aggr. However, in the non-return path, it will be treated as (RS1)-(GBY2-RS3-GBY4). The main problem is that it does not take into account of the setting.

Issue Links

• links to: RB