SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 5)
   ExpressionList (children 1)
    Function greater (children 1)
     ExpressionList (children 2)
      Function length (children 1)
       ExpressionList (children 1)
        Identifier stack_trace
      Literal UInt64_1000
   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
