fix.

Author: gatorsmile

sql/catalyst/src/main/antlr4/org/apache/spark/sql/catalyst/parser/SqlBase.g4

@@ -569,7 +569,7 @@ primaryExpression
     | qualifiedName '.' ASTERISK                                                               #star
     | '(' namedExpression (',' namedExpression)+ ')'                                           #rowConstructor
     | '(' query ')'                                                                            #subqueryExpression
-    | qualifiedName '(' (setQuantifier? namedExpression (',' namedExpression)*)? ')'
+    | qualifiedName '(' (setQuantifier? argument+=expression (',' argument+=expression)*)? ')'
        (OVER windowSpec)?                                                                      #functionCall
     | value=primaryExpression '[' index=valueExpression ']'                                    #subscript
     | identifier                                                                               #columnReference

sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/parser/AstBuilder.scala

@@ -1090,7 +1090,7 @@ class AstBuilder(conf: SQLConf) extends SqlBaseBaseVisitor[AnyRef] with Logging
     // Create the function call.
     val name = ctx.qualifiedName.getText
     val isDistinct = Option(ctx.setQuantifier()).exists(_.DISTINCT != null)
-    val arguments = ctx.namedExpression().asScala.map(expression) match {
+    val arguments = ctx.argument.asScala.map(expression) match {
       case Seq(UnresolvedStar(None))
         if name.toLowerCase(Locale.ROOT) == "count" && !isDistinct =>
         // Transform COUNT(*) into COUNT(1).

sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/parser/PlanParserSuite.scala

@@ -223,6 +223,12 @@ class PlanParserSuite extends PlanTest {
     assertEqual(s"$sql grouping sets((a, b), (a), ())",
       GroupingSets(Seq(Seq('a, 'b), Seq('a), Seq()), Seq('a, 'b), table("d"),
         Seq('a, 'b, 'sum.function('c).as("c"))))
+
+    val m = intercept[ParseException] {
+      parsePlan("SELECT a, b, count(distinct a, distinct b) as c FROM d GROUP BY a, b")
+    }.getMessage
+    assert(m.contains("extraneous input 'b'"))
+
   }
 
   test("limit") {