Github user wuchong commented on the issue:
https://github.com/apache/flink/pull/2265
Yes, you are right. I'm just a little concerned about the class name of
`ScalarFunction`, haha..
In addition, Java Table API should be `table.select("hashCode(text)");`
which is better I think. Assume that the eval function takes two or more
parameters, `"udf(a,b)"` will be satisfied and be consistent with Scala Table
API and SQL on syntax.
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