Alternatively:
pragma planner_ignore_index=1 On Sep 20, 2008, at 11:37 AM, Russell Leighton <[EMAIL PROTECTED] > wrote: > It would be very nice to have a way to explicitly control index use. > > I'm going to test my theory this weekend but I think if the index is > not cached and the data large then the group by is faster without the > index. If this is the case I have a real issue. I need the index for > other queries and can't afford to drop it for the aggregations. I just > want to tell the query planner to not use any index. > > If there is no way to do this with the current parser could we have an > extension to select? Maybe something like: > select with no index .... > select with index index1,index2 .... > > Thoughts? > > > On Sep 20, 2008, at 10:33 AM, "Jay A. Kreibich" <[EMAIL PROTECTED]> wrote: > >> On Fri, Sep 19, 2008 at 10:47:33PM -0400, Russ Leighton scratched on >> the wall: >> >>> What about the null values for the aggregation keys when I put a '+' >>> to disable the index? Is that 'as designed'? >> >> The "+" operator gets rid of type-affinities, and that can lead to >> unexpected results. I'm not sure if one would consider these >> specific results "as designed" or not, but it is known that "+" is >> not totally without side effects: >> >> http://www.sqlite.org/cvstrac/tktview?tn=3279 >> >> >> -j >> >> >> -- >> Jay A. Kreibich < J A Y @ K R E I B I.C H > >> >> "Our opponent is an alien starship packed with atomic bombs. We have >> a protractor." "I'll go home and see if I can scrounge up a ruler >> and a piece of string." --from Anathem by Neal Stephenson >> _______________________________________________ >> 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