[FLINK-13657] Remove FlinkJoinToMultiJoinRule pull-in from Calcite

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.10.0
• Component/s: Table SQL / Planner
• Assignee: Danny Chen
• Reporter: Jark Wu
• Created: 08/Aug/19 13:28
• Updated: 06/Oct/19 13:29
• Resolved: 06/Oct/19 13:29

Description

FlinkJoinToMultiJoinRule rule is copied from Calcite's org.apache.calcite.rel.rules.JoinToMultiJoinRule to blink planner in FLINK-13545.

This file should be removed while upgrading Calcite version to 1.21 because CALCITE-3225 has been merged.

We should also remove FlinkJoinToMultiJoinRuleTest.scala and FlinkJoinToMultiJoinRuleTest.xml as well.