No I haven't yet measured it.. I was only in the process of designing the database layout... Given that my queries are very simple, it may be fine to do the prepare_query every time..
I will do some perf testing and reply back. On Fri, Oct 29, 2010 at 9:40 AM, Pavel Ivanov <paiva...@gmail.com> wrote: > > order of 10 to 100 of these tables. When doing operations on these > tables, I > > want to avoid having to do a prepare_query every time for performance > > reasons. > > Did you measure your performance and find that prepare_query is a > bottleneck? > > > Since the tables have exactly the same schema, in theory I should > > be able to use the same prepared statement on any one of those tables. > Any > > ideas on if this is possible? > > No, it's not possible, because prepared query contains information > about the tables used by the query. > > > Pavel > > On Fri, Oct 29, 2010 at 11:52 AM, john Papier <johnpap...@gmail.com> > wrote: > > Hi, > > > > I need to create multiple tables all having the same schema. The > > number/names of the tables will by dynamic. There would be somewhere in > the > > order of 10 to 100 of these tables. When doing operations on these > tables, I > > want to avoid having to do a prepare_query every time for performance > > reasons. Since the tables have exactly the same schema, in theory I > should > > be able to use the same prepared statement on any one of those tables. > Any > > ideas on if this is possible? > > > > The other options I'm looking at are: > > 1. dynamically caching prepared queries > > 2. use only one table with an extra index. With only 10-100 tables merged > > into one, I figure the extra index would take an extra log100 -> ~10 > lookups > > in the binary search. The thing is, I need to keep a cursor to where in > the > > table I was last searching, so I can continue the search from where I > left > > off, which is why using multiple tables was preferable; i.e., i can track > > the row_id, and then resume the search there (WHERE row_id > > cursor_row_id). > > > > Any ideas? > > > > Thanks, > > _______________________________________________ > > sqlite-users mailing list > > sqlite-users@sqlite.org > > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > > > _______________________________________________ > sqlite-users mailing list > sqlite-users@sqlite.org > http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users > _______________________________________________ sqlite-users mailing list sqlite-users@sqlite.org http://sqlite.org:8080/cgi-bin/mailman/listinfo/sqlite-users
