SelectWithUnionQuery (children 2)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 2)
    Function throwIf (children 1)
     ExpressionList (children 2)
      Function notEquals (children 1)
       ExpressionList (children 2)
        Function count (children 1)
         ExpressionList
        Literal UInt64_1
      Literal \'no query was logged\'
    Function throwIf (children 1)
     ExpressionList (children 2)
      Function greater (children 1)
       ExpressionList (children 2)
        Function length (children 1)
         ExpressionList (children 1)
          Identifier thread_ids
        Literal UInt64_2
      Literal \'too many threads used\'
   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 equals (children 1)
      ExpressionList (children 2)
       Identifier type
       Literal \'QueryFinish\'
     Function like (children 1)
      ExpressionList (children 2)
       Identifier query
       Literal \'%data_01283 LIMIT 1%\'
   ExpressionList (children 1)
    Identifier thread_ids
 Identifier Null
