Lol... we just had a long discussion about sqlite_stat2 and ANALYZE command.
I removed these from my code, since the command should not be used except for
rare cases :P
Should I re-add my ANALYZE-code and ask my original question again? Confused :P
From: d...@sqlite.org
Date: Sat, 12 Feb
So if the drive is 5400 rpm, 227 is much more than 5400/60=90 and even if
it's 7200 (manufacturers sometimes upgrade drives inside portable hd
without
prior notice), it's still twice as much as 7200/60=120.
5400/60, 7200/60 ... those values rely on the assumption that
successive LBAs are
On Sun, Feb 13, 2011 at 1:15 AM, Max Vlasov max.vla...@gmail.com wrote:
On Sat, Feb 12, 2011 at 7:11 PM, Jim Wilcoxson pri...@gmail.com wrote:
Unless I'm missing something, SQLite has to update the first page of the
database on every commit, to update the change counter. Assuming you
On Sun, Feb 13, 2011 at 7:07 AM, Jean-Christophe Deschamps j...@antichoc.net
wrote:
So if the drive is 5400 rpm, 227 is much more than 5400/60=90 and even if
it's 7200 (manufacturers sometimes upgrade drives inside portable hd
without
prior notice), it's still twice as much as 7200/60=120.
Hello,
I have come across several situations in which the sqlite query optimizer
chooses clearly suboptimal query plans when a query spans several attached
databases. If I copy all involved tables into one sqlite database file, a
better query plan is chosen. The difference can be quite dramatic
On Sun, Feb 13, 2011 at 5:31 PM, Jim Wilcoxson pri...@gmail.com wrote:
On Sun, Feb 13, 2011 at 1:15 AM, Max Vlasov max.vla...@gmail.com wrote:
So the final results:
- the db was always ok and contains the correct value (id=10001 for
initial
1).
- the speed was about 227 commits per
But what I postulate is that you can't physically write *the same* record
over and over more than 90 times per second on a 5400 rpm drive,
unless the
drive, OS, or filesystem implements something like wear-leveling,
where the
physical location of sectors is constantly changing.
It's still
I have a simple table like so
CREATE TABLE points (
id INTEGER PRIMARY KEY,
lon REAL,
lat REAL,
tile INTEGER
);
It has about 13.25 million rows. I want to be able to return rows given a
bounding box (min_lon, min_lat, max_lon, max_lat). Is the following the right
strategy?
CREATE VIRTUAL
On Sun, Feb 13, 2011 at 11:55 AM, Max Vlasov max.vla...@gmail.com wrote:
On Sun, Feb 13, 2011 at 5:31 PM, Jim Wilcoxson pri...@gmail.com wrote:
On Sun, Feb 13, 2011 at 1:15 AM, Max Vlasov max.vla...@gmail.com
wrote:
So the final results:
- the db was always ok and contains the correct
On 13 Feb 2011, at 5:53pm, Jim Wilcoxson wrote:
I also found this page, used to force a Linux system crash:
http://evuraan.blogspot.com/2005/06/how-to-force-paniccrash-in-linux.html
I seem to remember a post that SQLite commit/sync is tested with the kill
command, but it seems like
On Sun, Feb 13, 2011 at 11:47:48AM -0600, Puneet Kishor scratched on the wall:
I have a simple table like so
CREATE TABLE points (
id INTEGER PRIMARY KEY,
lon REAL,
lat REAL,
tile INTEGER
);
It has about 13.25 million rows. I want to be able to return rows
given a bounding box
On Sunday, February 13, 2011 at 4:15 PM, Jay A. Kreibich wrote:
I have a simple table like so
CREATE TABLE points (
id INTEGER PRIMARY KEY,
lon REAL,
lat REAL,
tile INTEGER
);
It has about 13.25 million rows. I want to be able to return rows
given a bounding box (min_lon,
I thought this would be OK but now that I am seeing it fail I am having my
doubts.
I have created 2 db connections on the same thread, both on the same file.
i.e.
2 calls to sqlite3_open16() (use exact same filename both times) have created 2
sqlite3 instances. I do this because I have 2
On 13/02/2011, at 1:04 AM, Yuzem wrote:
I am grabbing the data from the each movie imdb webpage.
Does IMDB allow use of their data this way? After my brief reading of their
site, I thought they charge a $15k minimum per year for data.
The script is written in bash and I can give you the code
On Feb 13, 2011, at 3:38 PM, BareFeetWare list@barefeetware.com wrote:
On 13/02/2011, at 1:04 AM, Yuzem wrote:
I am grabbing the data from the each movie imdb webpage.
Does IMDB allow use of their data this way? After my brief reading of their
site, I thought they charge a $15k
Are you not able to use the same db connection in both classes?
something like
FirstTablesClass-dbConnection = MyDBConnectionClass
SecondTablesClass-dbConnection = MyDBConnectionClass
On 13 February 2011 23:04, jeff archer jarch...@yahoo.com wrote:
I thought this would be OK but now that I am
On 14 Feb 2011, at 12:30am, Vannus wrote:
Are you not able to use the same db connection in both classes?
something like
FirstTablesClass-dbConnection = MyDBConnectionClass
SecondTablesClass-dbConnection = MyDBConnectionClass
Nevertheless, having two connections should work too. His
I do a transaction on connection 1 using BEGIN IMMEDIATE, some rows updated,
COMMIT.
Then, when I attempt same sequence on connection 2, when I do first call to
step
to execute begin transaction and it never returns.
Do you check result code from COMMIT and is it successful? My guess is
you
Thanks.Hopefully corrected here: http://www.sqlite.org/src/info/b04304b967
-Shane
On Fri, Feb 11, 2011 at 4:59 PM, Noah Hart n...@lipmantpa.com wrote:
capi3e.test needs
ifcapable utf16 logic before capi3e-2.1.$i
to properly pass tests when compiled with SQLITE_OMIT_UTF16
~ Noah
On Sun, Feb 13, 2011 at 04:18:25PM -0600, Puneet Kishor scratched on the wall:
On Sunday, February 13, 2011 at 4:15 PM, Jay A. Kreibich wrote:
CREATE VIRTUAL TABLE points_rtree USING rtree (
id, min_lon, min_lat, max_lon, max_lat
);
Almost. You need to match min/max pairs, so the
On Sun, Feb 13, 2011 at 8:53 PM, Jim Wilcoxson pri...@gmail.com wrote:
But I thought about how it would be possible to test this explanation .
I'm
going to do some tests that works like this. The same id updating, but in
the middle of 10,000 operation I will unplug the cord, the sqlite
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