Hi Team, We are working on upgrading the Iceberg-Flink connector from 1.17 to 1.18, and found that some of our tests are failing. Prabhu Joseph created a jira [1] to discuss this issue, along with short example code.
In a nutshell: - Create a table with an 'ARRAY<INT NOT NULL>' column - Run a select which returns this column - The return type changes: - From 'Object[]' - in 1.17 - To 'int[]' - in 1.18 The change is introduced by this jira [2]. While I understand the reasoning behind this change, this will break some users existing workflow as evidenced by Xingcan Cui finding this independently [3]. What is the opinion of the community about this change? - Do we want to revert the change? - Do we ask the owners of the change to make this behavior configurable? - Do we accept this behavior change in a minor release? Thanks, Peter [1] - https://issues.apache.org/jira/browse/FLINK-33523 - DataType ARRAY<INT NOT NULL> fails to cast into Object[] [2] - https://issues.apache.org/jira/browse/FLINK-31835 - DataTypeHint don't support Row<i Array<int>> [3] - https://issues.apache.org/jira/browse/FLINK-33547 - SQL primitive array type after upgrading to Flink 1.18.0