twalthr commented on issue #9780: [FLINK-14042] [flink-table-planner] Fix TemporalTable row schema always inferred as nullable URL: https://github.com/apache/flink/pull/9780#issuecomment-544403585 Thanks for looking into this @YuvalItzchakov and the detailed explanation. I will also take a look at this problem with the test case you've provided. In general, the nullability topic is difficult in the old planner because `TypeInformation` was unable to store it. That's why we introduced `DataType` recently, however, the legacy planner should not use it internally. The Blink planner will fully support this type. I will come back to you shortly.
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