InsertQuery   (children 3)
 Function file (children 1)
  ExpressionList (children 3)
   Function concat (children 1)
    ExpressionList (children 2)
     Function currentDatabase (children 1)
      ExpressionList
     Literal \'_data_02313.avro\'
   Identifier auto
   Literal \'a Nested(b Nested(c UInt32, d UInt32))\'
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 3)
    ExpressionList (children 1)
     Function array (children 1)
      ExpressionList (children 1)
       Function array (children 1)
        ExpressionList (children 2)
         Function tuple (children 1)
          ExpressionList (children 2)
           Identifier number
           Function plus (children 1)
            ExpressionList (children 2)
             Identifier number
             Literal UInt64_1
         Function tuple (children 1)
          ExpressionList (children 2)
           Function plus (children 1)
            ExpressionList (children 2)
             Identifier number
             Literal UInt64_2
           Function plus (children 1)
            ExpressionList (children 2)
             Identifier number
             Literal UInt64_3
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       Function numbers (children 1)
        ExpressionList (children 1)
         Literal UInt64_3
    Set
 Set
