Stephen Oberholtzer <[EMAIL PROTECTED]> wrote: > On Tue, May 27, 2008 at 4:15 PM, > [EMAIL PROTECTED] > <[EMAIL PROTECTED]> wrote: > One of the fields takes few values (say, company website id), but new > ids >> are >> added from time to time. I would prefer to dynamically create a set >> of tables >> when a new id shows up, for the improved locality of reference plus >> reduced overhead from the website id and its non-unique index. > > > This statement is really confusing me. "New IDs are added from time > to > time" sounds like "New IDs are added, but not very often" which > conflicts > with your "realtime" assertion.
Lots of new records are added, but a particular field in these records takes on only a small number of distinct values. Occasionally - rarely - a new value appears in this field that never appeared before. For performance reasons (whether valid or imagined), the OP wants to keep a set of records that all share the same value in this field in a separate table, one for each possible value. This way, when a new such value appears, a new table needs to be created. Igor Tandetnik _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
