cloud-fan commented on code in PR #37047:
URL: https://github.com/apache/spark/pull/37047#discussion_r913552918
##########
sql/core/src/main/scala/org/apache/spark/sql/jdbc/JdbcDialects.scala:
##########
@@ -253,6 +253,19 @@ abstract class JdbcDialect extends Serializable with
Logging{
}
}
+ override def visitAggregateFunction(
+ funcName: String, isDistinct: Boolean, inputs: Array[String]): String
= {
+ if (isSupportedFunction(funcName)) {
+ super.visitAggregateFunction(
+ dialectFunctionName(funcName).getOrElse(funcName), isDistinct,
inputs)
+ } else {
+ throw new UnsupportedOperationException(
+ s"${this.getClass.getSimpleName} does not support aggregate
function: $funcName");
+ }
+ }
+
+ protected def dialectFunctionName(funcName: String): Option[String] = None
Review Comment:
shall we apply this in `visitSQLFunction`?
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