+--On 15 décembre 2008 09:41:34 +0000 80n <[email protected]> wrote: | Are you saying, very simply, a count of all the tags for nodes, ways and | relations for any given timestamp? | | For example: | 2008-12-15 08:04 = 898266982 | 2008-12-15 08:05 = 898278312 | 2008-12:15 08:06 = 898279938 | etc | | I was thinking of something with a little bit more granularity, such as | the sum of the seconds component of each time stamp. This would also, I | think, be quicker to recalculate if needed. | | If the checksum was stored in a table for every minute diff update then, | if something goes wrong, it would be easy to see when it went wrong, and | make it easier to correct by re-running diffs from that moment.
I don't know how much time it would take on other ROMA to select count(*) from nodes, but on mine, it's more than a few minutes, so, it could not be done every minute :-) It could be done every hour or so though. -- Mathieu Arnold _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/listinfo/dev
