[TAJO-927] Broadcast Join with Large, Small, Large, Small tables makes a wrong plan.

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 0.9.0
• Assignee: Hyoungjun Kim
• Reporter: Hyoungjun Kim
• Created: 09/Jul/14 08:24
• Updated: 11/Jul/14 06:10
• Resolved: 11/Jul/14 06:01

Description

select count(*) from large1 
inner join small1 on large1_id = small1_id
left outer join large2 on large1_id = large2_id 
left outer join small2 on large1_id = small2_id

Current tajo planner makes the plan as following. All large tables(large1, large2) are scanned in a single execution block. Each table should have a execution block.

|-eb_1404871198908_0000_000005
  |-eb_1404871198908_0000_000004
    |-eb_1404871198908_0000_000003