InsertQuery   (children 3)
 Function file (children 1)
  ExpressionList (children 1)
   Function concat (children 1)
    ExpressionList (children 2)
     Function currentDatabase (children 1)
      ExpressionList
     Literal \'_data_02313.avro\'
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 3)
    ExpressionList (children 1)
     Function map (alias m) (children 1)
      ExpressionList (children 2)
       Function concat (children 1)
        ExpressionList (children 2)
         Literal \'key_\'
         Function toString (children 1)
          ExpressionList (children 1)
           Identifier number
       Function tuple (children 1)
        ExpressionList (children 2)
         Identifier number
         Function range (children 1)
          ExpressionList (children 1)
           Identifier number
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       Function numbers (children 1)
        ExpressionList (children 1)
         Literal UInt64_3
    Set
 Set
