Github user hvanhovell commented on a diff in the pull request:
https://github.com/apache/spark/pull/22576#discussion_r226623886
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/SparkSessionExtensions.scala ---
@@ -168,4 +173,21 @@ class SparkSessionExtensions {
def injectParser(builder: ParserBuilder): Unit = {
parserBuilders += builder
}
+
+ private[this] val injectedFunctions =
mutable.Buffer.empty[FunctionDescription]
+
+ private[sql] def registerFunctions(functionRegistry: FunctionRegistry) =
{
+ for ((name, expressionInfo, function) <- injectedFunctions) {
--- End diff --
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