SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 5)
   ExpressionList (children 1)
    Function base64Decode (children 1)
     ExpressionList (children 1)
      Function base64Encode (children 1)
       ExpressionList (children 1)
        Function normalizeQuery (children 1)
         ExpressionList (children 1)
          Identifier query
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.query_log
   Function and (children 1)
    ExpressionList (children 3)
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier type
       Literal \'QueryFinish\'
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier log_comment
       Literal \'ad15a651\'
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier current_database
       Function currentDatabase (children 1)
        ExpressionList
   ExpressionList (children 1)
    Function normalizeQuery (children 1)
     ExpressionList (children 1)
      Identifier query
   ExpressionList (children 1)
    OrderByElement (children 1)
     Function normalizeQuery (children 1)
      ExpressionList (children 1)
       Identifier query