SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 5)
   ExpressionList (children 1)
    Function count (children 1)
     ExpressionList (children 1)
      Function greatest (children 1)
       ExpressionList (children 1)
        Function multiIf (children 1)
         ExpressionList (children 5)
          Literal UInt64_1
          Literal UInt64_2
          Function toNullable (children 1)
           ExpressionList (children 1)
            Literal NULL
          Literal UInt64_3
          Literal UInt64_4
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier test1_00395
   Function toNullable (children 1)
    ExpressionList (children 1)
     Literal UInt64_27
   ExpressionList (children 1)
    Identifier col1
   ExpressionList (children 2)
    OrderByElement (children 1)
     Function multiIf (children 1)
      ExpressionList (children 5)
       Literal UInt64_27
       Literal UInt64_1
       Function multiIf (children 1)
        ExpressionList (children 5)
         Function materialize (children 1)
          ExpressionList (children 1)
           Literal UInt64_1
         Function toLowCardinality (children 1)
          ExpressionList (children 1)
           Literal UInt64_2
         Literal UInt64_3
         Literal UInt64_1
         Literal UInt64_4
       Literal NULL
       Literal UInt64_4
    OrderByElement (children 1)
     Identifier col1
