To migrate the site, you can use an open source ETL tool. Talend Open Studio is an open source ETL tool for data integration and migration experts. It's easy to learn for a non-technical user. What distinguishes Talend, when it comes to business users, is the tMap component. It allows the user to get a graphical and functional view of integration processes. For more information: http://www.talend.com/ Justin-95 wrote: > > > > > > > > > > APseudoUtopia wrote: > > thread, then logs out (intending to read all the other forum threads > at some point in the future when they log in again). If I used a VIEW, > it would automatically consider all those unread forum posts to be > read when the user logs out. > > > That wouldn't work. What if a user logs in, reads only one forum > > > You are keeping a list of all the forums a user has read, i would not > worry about making sure the table tracking user activity has duplicate > key values. The select can be limited to return just on row with the > highest time stamp then compare this result to figure out what forms > the user has not read yet. This eliminates one of problems but creates > a problem where table tracking user activity is going bloat but in low > traffic times delete the duplicate values. > > A similar topic was discussed on the performance mailing list, where > updates are hung for several seconds for a similar tracking table... > http://archives.postgresql.org/pgsql-performance/2009-06/msg00300.php > > > > > > -- View this message in context: http://www.nabble.com/Switching-from-MySQL%3A-ON-DUPLICATE-KEY-UPDATE%2C-plpgsql-function-tp24237803p24254206.html Sent from the PostgreSQL - general mailing list archive at Nabble.com. -- Sent via pgsql-general mailing list (pgsql-general@xxxxxxxxxxxxxx) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-general
