[FLINK-20877] Refactor BytesHashMap and BytesMultiMap to support window key

• Type: Sub-task
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 1.13.0
• Component/s: Table SQL / Runtime
• Labels: pull-request-available
• Assignee: Jark Wu
• Reporter: Jark Wu
• Created: 07/Jan/21 05:47
• Updated: 28/May/21 07:03
• Resolved: 08/Jan/21 08:41

Description

Currently, the BytesHashMap and BytesMultiMap only support BinaryRowData as the key. However, for window operators, the key should be groupKey + window. We should make them decouple with BinaryRowData key type and support window key.

Issue Links

• links to: GitHub Pull Request #14572