[FLINK-20704] Some rel data type does not implement the digest correctly

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.11.3, 1.12.0
• Fix Version/s: 1.12.1
• Component/s: Table SQL / Legacy Planner
• Labels: pull-request-available
• Assignee: Danny Chen
• Reporter: Danny Chen
• Created: 22/Dec/20 02:51
• Updated: 28/May/21 06:59
• Resolved: 31/Dec/20 03:04

Description

Some of the rel data types for legacy planner:

• GenericRelDataType
• ArrayRelDataType
• MapRelDataType
• MultisetRelDataType

Does not implement the digest correctly, especially for GenericRelDataType , the RelDataTypeFactory caches the type instances based on its digest, a wrong digest impl would mess up the type instance creation, e.g. without this patch, all the GenericRelDataType instances have same digest `ANY`.

Issue Links

• is related to: FLINK-20785 MapRelDataType for legacy planner has wrong digest
• links to: GitHub Pull Request #14451