Frédéric Houbie wrote:
> st.setFetchSize(Integer.parseInt(args[0]));
> System.out.println("FetchSize : " + st.getFetchSize());
> String q="SELECT a FROM SValues WHERE Name = 'title'";
> It always take the same time (long time) whatever value I pass to this code for the FetchSize.
Fetch size does not directly affect query speed, it affects the number
of results the driver retrieves at once. If you've got a query that is
slow and takes a long time to return any results at all, changing the
fetchsize isn't going to help.
Since it sounds like you are getting quite different results on two
different server installations I would guess that the two databases are
not actually identical. Perhaps one is using an index but the other
isn't? Try the queries via psql, use EXPLAIN, etc.
-O