SelectWithUnionQuery (children 1)
 ExpressionList (children 1)
  SelectQuery (children 4)
   ExpressionList (children 2)
    Function arrayElement (children 1)
     ExpressionList (children 2)
      Identifier ProfileEvents
      Literal \'QueryCacheHits\'
    Function arrayElement (children 1)
     ExpressionList (children 2)
      Identifier ProfileEvents
      Literal \'QueryCacheMisses\'
   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 current_database
       Function currentDatabase (children 1)
        ExpressionList
     Function equals (children 1)
      ExpressionList (children 2)
       Identifier query
       Literal \'SELECT 1 SETTINGS use_query_cache = true;\'
   ExpressionList (children 1)
    OrderByElement (children 1)
     Identifier event_time_microseconds