SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 5)
   ExpressionList (children 1)
    Function like (children 1)
     ExpressionList (children 2)
      Identifier message
      Literal \'%Stack trace%\'
   TablesInSelectQuery (children 1)
    TablesInSelectQueryElement (children 1)
     TableExpression (children 1)
      TableIdentifier system.text_log
   Function and (children 1)
    ExpressionList (children 3)
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier level
       Literal \'Error\'
     Function like (children 1)
      ExpressionList (children 2)
       Identifier message
       Literal \'%Exception%throwIf%\'
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier query_id
       Subquery (children 1)
        SelectWithUnionQuery (children 1)
         ExpressionList (children 1)
          SelectQuery (children 5)
           ExpressionList (children 1)
            Identifier query_id
           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 current_database
               Function currentDatabase (children 1)
                ExpressionList
             Function like (children 1)
              ExpressionList (children 2)
               Identifier query
               Literal \'%SELECT \\\'Hello\\\', throwIf(1)%\'
             Function notLike (children 1)
              ExpressionList (children 2)
               Identifier query
               Literal \'%system%\'
           ExpressionList (children 1)
            OrderByElement (children 1)
             Identifier event_time_microseconds
           Literal UInt64_1
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier event_time_microseconds
   Literal UInt64_10
