Hi, I'm trying to work out how to make sure things are read from a table in a consistent order. The table represents a queue of items and also the history of those items.
Even with "serializable" transaction isolation I can begin two transactions, insert a record in each, commit the second transaction first. This second record is now visible and can be read from the queue. But when I commit the first this one appears before the second one. This could then be read from the queue second but when I rescan the table to view history it looks like it was read first. Are there any ways to make this work a little more intuitively? Basically I guess I want to be able to model a queue effectively. James ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster