InsertQuery   (children 2)
 Identifier test_table
 SelectWithUnionQuery (children 1)
  ExpressionList (children 1)
   SelectQuery (children 2)
    ExpressionList (children 2)
     Identifier number
     Function concat (children 1)
      ExpressionList (children 2)
       Literal \'some string \'
       Function CAST (children 1)
        ExpressionList (children 2)
         Identifier number
         Literal \'String\'
    TablesInSelectQuery (children 1)
     TablesInSelectQueryElement (children 1)
      TableExpression (children 1)
       Function numbers (children 1)
        ExpressionList (children 1)
         Literal UInt64_1000000
