[FLINK-11856] Introduce BinaryHashTable to batch table runtime

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Implemented
• Fix Version/s: 1.9.0
• Component/s: Runtime / Task
• Labels: pull-request-available
• Assignee: Kurt Young
• Reporter: Kurt Young
• Created: 08/Mar/19 03:31
• Updated: 12/Mar/19 10:14
• Resolved: 12/Mar/19 10:14

Description

Once we have BinaryRow, we should also introduce the hash table which stored all rows in binary format. It has multiple benefits if we knows the binary format about the build side row and probe side row. For example, we can directly compare on byte arrays when we want to check if build key and probe key equals. We can also eliminate lots of deserialize cost when we want to get a row instance from some binary data.

Issue Links

• is a child of: FLINK-11490 Add an initial Blink SQL batch runtime
• links to: GitHub Pull Request #7949