Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/20795#discussion_r177593883
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/catalog/SessionCatalog.scala
---
@@ -1072,8 +1072,17 @@ class SessionCatalog(
def functionExists(name: FunctionIdentifier): Boolean = {
val db =
formatDatabaseName(name.database.getOrElse(getCurrentDatabase))
requireDbExists(db)
- functionRegistry.functionExists(name) ||
- externalCatalog.functionExists(db, name.funcName)
+ builtinFunctionExists(name) || externalFunctionExists(name)
+ }
+
+ def builtinFunctionExists(name: FunctionIdentifier): Boolean = {
--- End diff --
Let us do not add these APIs to SessionCatalog. Just create private
functions?
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