Cayenne has to fetch the primary keys of your ~683k records first, which is why it is taking so long. After that, it will use the PKs to fetch all the records for each page (50 at a time in your case) you access. Eventually you'll have all ~683k in memory (if you have enough memory). This will be horribly inefficient. You should try to find a way to divide your data set up into smaller chunks that you can process.
mrg On Sun, Apr 12, 2009 at 8:42 PM, Paul Logasa Bogen II <[email protected]> wrote: > I have a table with ~683k entries in it. I have a maintenance task that > requires me to hit every entry. Since I know the results are much too big to > return all at once, I've set the page size to 50. However, Cayenne appears > to be attempting the full query first before falling back to paging. This is > taking nearly half an hour for it to fall back, at which point everything > works flawlessly. Is there a way to force the query to be paginated or to > reduce the timeout on a query? > > plb >
