[haiku-3rdparty-dev] Re: Fetching data from queries
- From: "Yashasvi A.C." <yashasviac@xxxxxxxxx>
- To: haiku-3rdparty-dev@xxxxxxxxxxxxx
- Date: Thu, 5 Nov 2009 22:45:54 +1300
On Thu, Nov 5, 2009 at 8:06 PM, Ingo Weinhold <ingo_weinhold@xxxxxx> wrote:
>
> On 2009-11-05 at 03:46:59 [+0100], Rene Gollent <anevilyak@xxxxxxxxx>
> wrote:
> > On Wed, Nov 4, 2009 at 8:39 PM, Rene Gollent <anevilyak@xxxxxxxxx>
> wrote:
> > > far more than the 4 entries in your folder. The other problem is that
> > > last_modified is not relative, it's a timestamp, which is to say you
> > > probably want something like "(%now% - last_modified) < 10000000" as
> >
> > On second thought, you might want to rework that as "last_modified >
> > (%now% - 10000000)"..I'm not sure how intelligent BFS is at optimizing
> > queries, and in case it doesn't do any such thing this form should be
> > friendlier for the indices.
>
> I don't think that would work either. The expression could be
> "last_modified > %-10 secs%", though.
>
> CU, Ingo
>
>
Hi,
The "last_modified > (%non% - 10000000)" predicate doesn't really restrict
the files that were modified in the last 10 seconds. So, even if I click the
button once again after 15 seconds, the previous messages are still listed.
Also, as Rene mentioned, all the files are being checked. So, I put in a
simple filter on the file name (pretty much checking if the string starts
with Message and checking the character after that is a digit) to get the
files that I needed. Maybe I could try the predicate that Ingo suggested and
check if it gives me the files within the last 10 seconds.
Regards,
Yash
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