On Sat, Jun 21, 2014 at 9:45 PM, ben turner <[email protected]> wrote:
> I think this sounds like a fine idea. > > -Ben Turner > > > On Sat, Jun 21, 2014 at 5:39 PM, Jonas Sicking <[email protected]> wrote: > >> Hi all, >> >> I found an old email with notes about features that we might want to put >> in v2. >> >> Almost all of them was recently brought up in the recent threads about >> IDBv2. However there was one thing on the list that I haven't seen brought >> up. >> >> It might be a nice perf improvement to add support for a >> IDBObjectStore/IDBIndex.exists(key) function. >> > This sounds redundant with count(). Was count() added to the spec after that note was written? (count() seems to be a relatively late addition, given that it occurs last in the IDLs) > This would require less IO and less object creation than simply using >> .get(). It is probably particularly useful when doing a filtering join >> operation between two indexes/object stores. But it is probably useful >> other times too. >> >> Is this something that others think would be useful? >> >> / Jonas >> > >
