Recent changes to bugs

SELECT DISTINCT and file locking

Anonymous — Wed, 09 Nov 2005 20:50:04 -0000

There is a problem when executing a query such as
SELECT DISTINCT col FROM table;
There is never a break in the while(1) loop in os_wince.c,
getlock() - I didn't investigate further and turned off the
file locking - since it is not needed in my app.

V3.2.2 Won't Compile Under VS2005

Anonymous — Tue, 04 Oct 2005 06:03:50 -0000

Not sure if you've got anyone else using VS2005. I've
found it to be more reliable than eVC and VS2003 in
many instance.

Anyway, keep getting a linker error about uneresolved
external symbols.
Especially:
symbol __security_cookie

Could be coming from the dev environment but can't
tell. I have read the instructions and have also
successfully compiled and used the desktop version
(3.2.7). Not saying this isn't my error but I do know
basically how to make the dll. I've included the full
linker output. Any help would be greatly appreciated.

I'm hoping to ditch SQLCE/Mobile for SQLLite....

thanks
tim

sqlite 3.1.5 buggy

Vincent Richomme — Tue, 22 Mar 2005 18:48:00 -0000

Hi,

first thanks a lot for your porting. First I was doing
it when someone told me that you already have done the
work.

Now it seems that 3.1.5 is buggy sometimes see sqlite
homepage :

Version 3.1.6 fixes a critical bug that can cause
database corruption when inserting rows into tables
with around 125 columns. This bug was introduced in
version 3.0.0.

So if your porting is based on this version I hope you
will fix the bug.
I would like to help you but for now I am really busy
on a big project.

Regards

Btree.c Balance_NonRoot access violation

gianluca rossi — Tue, 24 Aug 2004 10:57:22 -0000

hi,
we got a access violation at line 2986 in btree.c file
in function balance_nonroot the first time it's called.
see the test code below, it's a simple database creation
and a loop of INSERT commands.
After some iterations the program crashes

#include "stdafx.h"
#include <SQLiteint.h>

bool TestExecuter(sqlite3 *db_hnd, char *query, char
*Msg)
{
char tmpstr[1024];
wchar_t tmpwstr[1024];

char **_result_set;
int _n_row=0;
int _n_col=0;
char *_error_msg;

// Creo la query.
va_list tmp_args;

va_start(tmp_args, query);
char *tmp_query = sqlite3_vmprintf(query, tmp_args);

// Eseguo la query.
int tmp_ec = sqlite3_get_table(db_hnd, tmp_query,
&_result_set, &_n_row, &_n_col, &_error_msg);

// Libero la query.
sqlite3_free(tmp_query);

if((_n_row == -1) || (_error_msg != NULL))
sprintf(tmpstr,"\nQuery Failed! - errmsg: %s\n",
_error_msg);
else
sprintf(tmpstr,"\nQuery Ok!\n");

return (_n_row == -1) || (_error_msg != NULL);

}

int Test_Insert2(sqlite3 *db_hnd)
{
// Create some tables with data that we can select
against
TestExecuter(db_hnd, "CREATE TABLE d1(n int, log
int)","\n");
char tmp_str[1024];
for (int i=1;i<=200;i++)
{
for (int j=0; pow(2,j)<i; j++)
{
sprintf(tmp_str,"INSERT INTO d1 VALUES(%d,%
d)",i,j);
TestExecuter(db_hnd, tmp_str,"\n");
}
}
TestExecuter(db_hnd, "SELECT * FROM d1 ORDER BY
n","\n");

// finish_test
return 0;
}

#define DB_TEST "\\Test.db"

sqlite3 *_db_hnd;

int WINAPI WinMain( HINSTANCE hInstance,

HINSTANCE hPrevInstance,

LPTSTR lpCmdLine,
int
nCmdShow)
{
int err;
err = sqlite3_open(DB_TEST, &_db_hnd);
if( err )
return false;
Test_Insert2(_db_hnd);

return 0;
}

Not catch some error in SQL query

Anonymous — Thu, 15 Apr 2004 06:56:52 -0000

I'ts not a big problem but i notice uncatched exception
when SQL query was cut on random char. I have too
small buffer for sql query and when I put long query, it
was cutting on differend places. When I exec this
damaged query SQLite not return with "normal" error. It
hang program. (I use sqlite_get_table).