Danny Chen created FLINK-20704:
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Summary: Some rel data type does not implement the digest correctly
Key: FLINK-20704
URL: https://issues.apache.org/jira/browse/FLINK-20704
Project: Flink
Issue Type: Bug
Components: Table SQL / Legacy Planner
Affects Versions: 1.11.3, 1.12.0
Reporter: Danny Chen
Fix For: 1.12.1
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`.
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