sunjincheng created FLINK-7358:
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Summary: Add implicitly converts support for User-defined function
Key: FLINK-7358
URL: https://issues.apache.org/jira/browse/FLINK-7358
Project: Flink
Issue Type: Improvement
Components: Table API & SQL
Reporter: sunjincheng
Assignee: sunjincheng
Currently if user defined a UDF as follows:
{code}
object Func extends ScalarFunction {
def eval(a: Int, b: Long): String = {
...
}
}
{code}
And if the table schema is (a: Int, b: int, c: String), then we can not call
the UDF `Func('a, 'b)`. So
I want add implicitly converts when we call UDF.
*Note:
In this JIRA. only for TableAPI, And SQL will be fixed in
https://issues.apache.org/jira/browse/CALCITE-1908.*
What do you think? [~fhueske]
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