[FLINK-12524] Introduce planner rules about rank

• Type: New Feature
• Status: Closed
• Priority: Major
• Resolution: Implemented
• Fix Version/s: 1.9.0
• Component/s: Table SQL / Planner
• Labels: pull-request-available
• Assignee: godfrey he
• Reporter: godfrey he
• Created: 16/May/19 03:35
• Updated: 22/May/19 01:08
• Resolved: 22/May/19 01:08

Description

This issue aims to introduce planner rules about rank, rules include:
1. CalcRankTransposeRule, that transposes FlinkLogicalCalc past FlinkLogicalRank
to reduce rank input fields.
2. RankNumberColumnRemoveRule, that emoves the output column of rank number iff there is a equality condition for the rank column.

Issue Links

• is a child of: FLINK-11488 Add a basic Blink planner framework
• links to: GitHub Pull Request #8460