Richard and Scott - big thanks for the suggestions.
-Mike
- Original Message -
From: "Scott Hess"
To: "General Discussion of SQLite Database"
Sent: Monday, August 2, 2010 1:45:26 PM
Subject: Re: [sqlite] Optimizing Songbird
[Sorry for the mis-fire.]
On Mon, Aug
[Sorry for the mis-fire.]
On Mon, Aug 2, 2010 at 11:11 AM, Simon Slavin wrote:
> On 2 Aug 2010, at 7:06pm, Richard Hipp wrote:
>> Most of the slow queries seem to be "SELECT count(*) FROM ". Such
>> queries have to visit every row in the table (in order to count the rows)
>> and thus get pro
Count() might still have to visit each row because there might also be a
where clause.
select count(toys) in toybox where wheels=4;
(pardon rusty SQL plz)
On Mon, Aug 2, 2010 at 1:37 PM, Scott Hess wrote:
> On Mon, Aug 2, 2010 at 11:11 AM, Simon Slavin
> wrote:
> > On 2 Aug 2010, at 7:06pm,
On Mon, Aug 2, 2010 at 11:11 AM, Simon Slavin wrote:
> On 2 Aug 2010, at 7:06pm, Richard Hipp wrote:
>> Most of the slow queries seem to be "SELECT count(*) FROM ". Such
>> queries have to visit every row in the table (in order to count the rows)
>> and thus get progressively slower as the nu
On Mon, Aug 2, 2010 at 2:11 PM, Simon Slavin wrote:
>
> On 2 Aug 2010, at 7:06pm, Richard Hipp wrote:
>
> > Most of the slow queries seem to be "SELECT count(*) FROM ". Such
> > queries have to visit every row in the table (in order to count the rows)
> > and thus get progressively slower as
On 2 Aug 2010, at 7:06pm, Richard Hipp wrote:
> Most of the slow queries seem to be "SELECT count(*) FROM ". Such
> queries have to visit every row in the table (in order to count the rows)
> and thus get progressively slower as the number of entries in the database
> increases.
Might there
Thanks again,
> Mike
>
> - Original Message -
> From: "Mike Hays"
> To: "General Discussion of SQLite Database"
> Sent: Friday, July 30, 2010 2:25:27 PM
> Subject: Re: [sqlite] Optimizing Songbird
>
> Hi Richard,
>
> Thanks for getting ba
27;re accessing the database.
Thanks again,
Mike
- Original Message -
From: "Mike Hays"
To: "General Discussion of SQLite Database"
Sent: Friday, July 30, 2010 2:25:27 PM
Subject: Re: [sqlite] Optimizing Songbird
Hi Richard,
Thanks for getting back to me so quickly! :)
You
2010/7/31 Richard Hipp :
> Assuming the database connection object is named "db", the commands are:
>
> db status step
> db status sort
> db status autoindex
Thanks a lot, Richard! Please add "autoindex" option and replace
"steps" to "step" and "sorts" to "sort" at
http://sqlite.org/tclsqlit
On Fri, Jul 30, 2010 at 5:24 PM, Alexey Pechnikov wrote:
> 2010/7/31 Richard Hipp :
> > (3) Read about the sqlite3_stmt_status() interface. Just before you
> > sqlite3_finalize() or sqlite3_reset() each prepared statement, using
> > sqlite3_stmt_status() to see how many full-scan steps and how ma
next few days.
Thanks again,
Mike
- Original Message -
From: "Richard Hipp"
To: "General Discussion of SQLite Database"
Sent: Friday, July 30, 2010 1:11:02 PM
Subject: Re: [sqlite] Optimizing Songbird
On Fri, Jul 30, 2010 at 3:26 PM, Mike Hays wrote:
> Hi sqli
2010/7/31 Richard Hipp :
> (3) Read about the sqlite3_stmt_status() interface. Just before you
> sqlite3_finalize() or sqlite3_reset() each prepared statement, using
> sqlite3_stmt_status() to see how many full-scan steps and how many sorts it
> had to do. If the answer to either question is non-
On Fri, Jul 30, 2010 at 3:26 PM, Mike Hays wrote:
> Hi sqlite-users,
>
> I'm working on improving the SQLite database performance for Songbird, an
> open-source media player based on Firefox/Mozilla. We're seeing pretty poor
> performance with large media libraries - ideally we'd like to support
Hi sqlite-users,
I'm working on improving the SQLite database performance for Songbird, an
open-source media player based on Firefox/Mozilla. We're seeing pretty poor
performance with large media libraries - ideally we'd like to support 100,000
media items and maintain reasonable performance.
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