dylanhz created FLINK-38826:
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Summary: Add new ArgumentStrategy to support array with specified
element type
Key: FLINK-38826
URL: https://issues.apache.org/jira/browse/FLINK-38826
Project: Flink
Issue Type: Improvement
Components: Table SQL / API
Reporter: dylanhz
Currently, if a function requires an argument of array with specified element
type, we are limited to ExplicitArgumentTypeStrategy. This unintentionally
modifies the original nullability, which interferes with the output type
inference.
We want to add new argument strategies like RootArgumentStrategy and
FamilyArgumentStrategy for array to preserve nullability whenever possible.
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