Anton Solovev created FLINK-5698:
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Summary: Add NestedFieldsProjectableTableSource interface
Key: FLINK-5698
URL: https://issues.apache.org/jira/browse/FLINK-5698
Project: Flink
Issue Type: Improvement
Components: Table API & SQL
Reporter: Anton Solovev
Add a NestedFieldsProjectableTableSource interface for some TableSource
implementation that support nesting projection push-down.
The interface could look as follows
{code}
def trait ProjectableTableSource {
def projectNestedFields(fields: Array[String]):
NestedFieldsProjectableTableSource[T]
}
{code}
This interface works together with ProjectableTableSource
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