would there be any default available field (like the OID of the records) that would be unique in the two versions of the datbase? there isn't "by accident" something like a unique UID like an MD5 or something... ? cause if there is no replication available, I'd consider this (together with PHP) a) replacing the serial fields by generated UID's (md5 of ID + a string that depends on the install) or b) start the autoincrement field at a high number in the second install (since I can estimate that there will never by > 10 000 records) + store all queries that were performed & run them in the network-master afterwards. >> >> I'd like to create a setup where there are exactly 2 masters which >> need to be synchronized against each other. The two masters should >> have read+write access, but don't have a permanent connection to each >> other. One will be on a LAN-server, the other instance will be >> installed on a Windows-client-laptop which can be taken along the >> road. When coming back to the office, we need to sync the changed >> data. >> >> is there any tool that will allow me to do so ? > If you got *really* clever you could maybe pull it off with Slony, but > in general, no, this isn't possible. -- Best regards, TomDB mailto:tomdb@xxxxxxx