hi, do You know how looks the AQ behaviour when changing down the retention_time on a queue working for some time? Let's say we have a 2-week retention and set to 1-week long. Does already dequeued messages older than 1 week will be cleaned at once or only newly dequeued messages will be cleaned after 1 week and already existing are ruled by previous setting? And more general question - how this cleaning looks like? Is it done by the way of other activities or run on some schedule (for example every X secs)? Regards Remigiusz -- Pole nakazi ---------------------------------------------------------------------- Remigiusz Sokolowski <remigiusz.sokolowski@xxxxxxxxxx> pos : DBA at DIiUSI addr : Nordea Bank Polska SA, Luzycka 6A Street, 81-537 Gdynia, Poland phone : +48 58 667 17 43 mobile: +48 602 42 42 77 -- //www.freelists.org/webpage/oracle-l