Github user yjshen commented on a diff in the pull request:
https://github.com/apache/flink/pull/1916#discussion_r61378731
--- Diff:
flink-libraries/flink-table/src/test/scala/org/apache/flink/api/table/test/ScalarFunctionsTest.scala
---
@@ -215,7 +215,7 @@ class ScalarFunctionsTest {
}
- @Test
+ @Ignore
--- End diff --
`exp` `log` `pow` and `ln` should have `Double` as input. What I was
thinking is, we should add some extra `type coercion` rules and add an `cast`
when we can do it safely(when an expression is asking a `Double` but we provide
a `Int`), for example, `Byte` to `Double`, `Long` to `Double` and so on, and
rewrite the expression as `pow(cast(x, Double))`
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