InsertQuery   (children 2)
 Identifier test
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 1)
     Function toJSONString (children 1)
      ExpressionList (children 1)
       Function map (children 1)
        ExpressionList (children 2)
         Literal \'a\'
         Function concat (children 1)
          ExpressionList (children 2)
           Literal \'str_\'
           Identifier number
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       Function numbers (children 1)
        ExpressionList (children 1)
         Literal UInt64_5
