Github user twalthr commented on a diff in the pull request:
https://github.com/apache/flink/pull/2653#discussion_r88465942
--- Diff:
flink-libraries/flink-table/src/main/scala/org/apache/flink/api/table/TableEnvironment.scala
---
@@ -152,21 +153,40 @@ abstract class TableEnvironment(val config:
TableConfig) {
protected def getBuiltInRuleSet: RuleSet
/**
- * Registers a [[UserDefinedFunction]] under a unique name. Replaces
already existing
+ * Registers a [[ScalarFunction]] under a unique name. Replaces already
existing
* user-defined functions under this name.
*/
- def registerFunction(name: String, function: UserDefinedFunction): Unit
= {
- function match {
- case sf: ScalarFunction =>
- // register in Table API
- functionCatalog.registerFunction(name, function.getClass)
+ def registerFunction(name: String, function: ScalarFunction): Unit = {
+ // register in Table API
+ functionCatalog.registerFunction(name, function.getClass)
- // register in SQL API
- functionCatalog.registerSqlFunction(sf.getSqlFunction(name,
typeFactory))
+ // register in SQL API
+ functionCatalog.registerSqlFunction(function.getSqlFunction(name,
typeFactory))
--- End diff --
Yes, you are right this seems to be a bug.
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