InsertQuery   (children 2)
 Identifier mult_tab
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 3)
    ExpressionList (children 4)
     Literal \'2018-01-31\'
     Function concat (children 1)
      ExpressionList (children 2)
       Literal \'str_\'
       Function toString (children 1)
        ExpressionList (children 1)
         Identifier number
     Literal UInt64_1
     Function if (children 1)
      ExpressionList (children 3)
       Function equals (children 1)
        ExpressionList (children 2)
         Function modulo (children 1)
          ExpressionList (children 2)
           Identifier number
           Literal UInt64_3
         Literal UInt64_2
       Literal UInt64_1
       Literal Int64_-1
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       TableIdentifier system.numbers
    Literal UInt64_10
