Github user twalthr commented on a diff in the pull request:
https://github.com/apache/flink/pull/3660#discussion_r109453119
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/table/codegen/CodeGenerator.scala
---
@@ -1106,6 +1106,31 @@ class CodeGenerator(
requireArray(array)
generateArrayElement(this, array)
+ // RAND([seed])
+ case RAND if isNumeric(resultType) && operands.size <= 1 =>
--- End diff --
We don't need this changes if the method is implemented using a
`CallGenerator` in `FunctionGenerator`.
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