Timo Walther created FLINK-7859:
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Summary: Allow field annotations to define TypeInformation
Key: FLINK-7859
URL: https://issues.apache.org/jira/browse/FLINK-7859
Project: Flink
Issue Type: Improvement
Components: Type Serialization System
Reporter: Timo Walther
Assignee: Timo Walther
Right now it is impossible to define custom TypeInformation for specific
fields. For example, we cannot provide information about a {{Row}} type that is
a field of Scala case class. An option would be to allow fields to be annotated
with {{@TypeInfo}} such that a type information can be provided.
{code}
case class Test(a: Int, b: String, @TypeInfo(classOf[MyRowFactory]) c: Row)
{code}
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