Github user wuchong commented on a diff in the pull request:
https://github.com/apache/flink/pull/3338#discussion_r102040448
--- Diff:
flink-libraries/flink-table/src/test/scala/org/apache/flink/table/ExpressionReductionTest.scala
---
@@ -155,15 +155,15 @@ class ExpressionReductionTest extends TableTestBase {
"DataSetCalc",
batchTableNode(0),
term("select",
- "13 AS _c0",
+ "CAST(13) AS _c0",
--- End diff --
Yes, because I changed the default nullable to `true`, but the reduced
constant is `NOT NULL`, so a `CAST` is here. Do you have any ideas to fix this?
The default nullable changed to `true` is because
`UserDefinedScalarFunctionTest.testResults` and
`ArrayTypeTest.testArrayLiterals` fail.
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