Use identifier() to get parameter name

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

@@ -4842,8 +4842,6 @@ class AstBuilder extends SqlBaseParserBaseVisitor[AnyRef] with SQLConfHelper wit
    * Create a named parameter which represents a literal with a non-bound value and unknown type.
    * */
   override def visitParameterLiteral(ctx: ParameterLiteralContext): Expression = withOrigin(ctx) {
-    val name = ctx.getText
-    assert(name.length > 1)
-    Parameter(name.substring(1))
+    Parameter(ctx.identifier().getText)
   }
 }