SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 2)
   ExpressionList (children 4)
    Function medianExactWeighted (children 1)
     ExpressionList (children 2)
      Identifier a
      Literal UInt64_1
    Function medianExactWeighted (children 1)
     ExpressionList (children 2)
      Identifier b
      Literal UInt64_2
    Function medianExactWeighted (alias x) (children 1)
     ExpressionList (children 2)
      Identifier c
      Literal UInt64_3
    Function toTypeName (children 1)
     ExpressionList (children 1)
      Identifier x
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier decimal