[HIVE-10812] Scaling PK/FK's selectivity for stats annotation

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.2.1
• Component/s: Physical Optimizer, Statistics
• Assignee: Pengcheng Xiong
• Reporter: Pengcheng Xiong
• Created: 23/May/15 21:08
• Updated: 05/Jun/15 20:57
• Resolved: 27/May/15 04:21

Description

Right now, the computation of the selectivity of FK side based on PK side does not take into consideration of the range of FK and the range of PK.

Issue Links

• is related to: HIVE-8769 Physical optimizer : Incorrect CE results in a shuffle join instead of a Map join (PK/FK pattern not detected)
• relates to: HIVE-10813 Fix current test failures after HIVE-8769
• links to: RB