[FLINK-18346] Support partition pruning for lookup table source

• Type: Sub-task
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: Table SQL / Planner
• Assignee: Unassigned
• Reporter: Jingsong Lee
• Created: 17/Jun/20 09:52
• Updated: 23/Sep/22 01:58

Description

Especially for Filesystem lookup table source, it stores all records in memory, if there is partition pruning, for partitioned table, can reduce memory effectively for lookup table source.