-C Add\sthe\sability\sto\sdo\sa\ssingle\s.command\sas\sthe\ssecond\sargument\nto\sthe\scommand-line\sshell.\s(CVS\s321)
-D 2001-11-25T13:18:24
+C Bug\sfix:\ssqlite_exec()\swould\ssometimes\sreturn\sSQLITE_PROTOCOL\swhen\sit\nshould\shave\sreturned\sSQLITE_BUSY.\s\sThere\swas\salso\sa\sdeadlock\sthat\sthe\nprevious\sbug\swas\smasking.\s(CVS\s322)
+D 2001-12-05T00:21:20
F Makefile.in 352fed589f09dd94347e0bb391d047118ebd6105
F Makefile.template b6c3d3ba089e97e3a721e967f3151350f36cb42b
F README a4c0ba11354ef6ba0776b400d057c59da47a4cc0
F ltmain.sh e9ed72eb1d690f447c13945eaf69e28af531eda1
F publish.sh 33cbe6798969f637698044023c139080e5d772a6
F src/TODO af7f3cab0228e34149cf98e073aa83d45878e7e6
-F src/btree.c d40fa46c8c578f1d166f4ea70d7a9d365399e0f3
+F src/btree.c 5fbfeb383465ca311ac202cbf6ba8f18196426de
F src/btree.h 0250a0a577a98cc64ddf1582d50c08b8d2451650
-F src/build.c 2e21d425328e7c8bd6ade235e9eef51bf6fa870f
+F src/build.c 83733f96255db003363e786d1b28a5b85611acca
F src/delete.c 5d93a21c1388cfb1359bda01c072f25583a2f4f2
F src/expr.c 6b25c5bb1e750af2e2217c0134a7aa1fc0b11444
F src/hash.c 6f1a7712ae3aac8351662969aec5693740a2fbf7
F src/hash.h a5f5b3ce2d086a172c5879b0b06a27a82eac9fac
F src/insert.c 3526be771a01035198bef28d8f370cbcab94f46d
-F src/main.c 799bdaf30cb33409b04a282aac53a9616d707c0d
+F src/main.c e5fa4773e6684b81fc0bcd9d9ae4578d56660c0c
F src/md5.c 52f677bfc590e09f71d07d7e327bd59da738d07c
F src/os.c d7dc681438f311cf8211a78d8d87a7cbdccc2f14
-F src/os.h bed702c9e3b768bc3cb1b12c90b83d099c1546be
-F src/pager.c fd9fc86686319a11cb0eebe5ebb4a250e45e7984
+F src/os.h c5c12f5f25b0a1baf9a62937b456fabcad2c1f49
+F src/pager.c 16173a7b7aff0c7bd7da94070e46d38778ab0f76
F src/pager.h df1fb8a759ab69112ea88b9f14601a7633d0ccc0
F src/parse.y 5295f393f41ea89958287e5738e6c12c7cd67482
F src/printf.c 300a90554345751f26e1fc0c0333b90a66110a1d
F src/shell.c 407095aaeeae78f42deb3e846b1ad77f8ed3b4ef
F src/shell.tcl 27ecbd63dd88396ad16d81ab44f73e6c0ea9d20e
F src/sqlite.h.in 934de9112747ad8d8e7d5fec44876246b24ca5a3
-F src/sqliteInt.h 1d812fd1eed0008d31f7e31293f058bb6dbe3f09
+F src/sqliteInt.h 3990eeee362d1fb48dff841b56b7fe39577ea590
F src/table.c c89698bd5bb4b8d14722d6ee7e9be014c383d24a
F src/tclsqlite.c b82e4faeae89fdb7304b3c970979ade299336a1f
F src/test1.c 41eabe255970ef947263b94145c9b2766bab8675
F www/arch.png 82ef36db1143828a7abc88b1e308a5f55d4336f4
F www/arch.tcl 72a0c80e9054cc7025a50928d28d9c75c02c2b8b
F www/c_interface.tcl 58922228e8fdb0f6af3561a051ee8ccec6dbfd17
-F www/changes.tcl 6aa1912a7da010dee96b904bbf74694eb4d4445c
+F www/changes.tcl 9e0fc062862a3f99081b5a42ff91567c92b4bd64
F www/crosscompile.tcl 3622ebbe518927a3854a12de51344673eb2dd060
F www/download.tcl 1ea61f9d89a2a5a9b2cee36b0d5cf97321bdefe0
F www/dynload.tcl 02eb8273aa78cfa9070dd4501dca937fb22b466c
-F www/faq.tcl f1fd488bef706934f6e13cc56bc642ae09c72515
+F www/faq.tcl 3c26fb2f2acfc9254f2685e23a34acae2490b44f
F www/index.tcl 6d6d847dd3e39e9aa7b0c9b8f3144819ff3f9f51
F www/lang.tcl 6482d90e40fb5ee004a86cf98f3007312a75444e
F www/mingw.tcl f1c7c0a7f53387dd9bb4f8c7e8571b7561510ebc
F www/sqlite.tcl 8b5884354cb615049aed83039f8dfe1552a44279
F www/tclsqlite.tcl 880ef67cb4f2797b95bf1368fc4e0d8ca0fda956
F www/vdbe.tcl 2013852c27a02a091d39a766bc87cff329f21218
-P 3be8a189e8ccf8a82acc4ee72cc75b6cc92aa193
-R bef40867b94c97a0a18ccef8081a3db9
+P 653f37c365a0b5d59c11b7dbba57905ffaeff2dc
+R 63aae37ccfcafcca670cad8f7e9ab9ed
U drh
-Z c7c502054afc4f55970b082ddb69834b
+Z 57898bef4e7a90862dc49491082c0c29
-653f37c365a0b5d59c11b7dbba57905ffaeff2dc
\ No newline at end of file
+585ed5ebf1c1afc8ae1d569b121208018d8ecd49
\ No newline at end of file
** May you share freely, never taking more than you give.
**
*************************************************************************
-** $Id: btree.c,v 1.41 2001/11/23 00:24:12 drh Exp $
+** $Id: btree.c,v 1.42 2001/12/05 00:21:20 drh Exp $
**
** This file implements a external (disk-based) database using BTrees.
** For a detailed discussion of BTrees, refer to
return rc;
}
+/*
+** If there are no outstanding cursors and we are not in the middle
+** of a transaction but there is a read lock on the database, then
+** this routine unrefs the first page of the database file which
+** has the effect of releasing the read lock.
+**
+** If there are any outstanding cursors, this routine is a no-op.
+**
+** If there is a transaction in progress, this routine is a no-op.
+*/
+static void unlockBtreeIfUnused(Btree *pBt){
+ if( pBt->inTrans==0 && pBt->pCursor==0 && pBt->page1!=0 ){
+ sqlitepager_unref(pBt->page1);
+ pBt->page1 = 0;
+ pBt->inTrans = 0;
+ }
+}
+
/*
** Create a new database by initializing the first two pages of the
** file.
return rc;
}
}
- if( !sqlitepager_isreadonly(pBt->pPager) ){
- rc = sqlitepager_write(pBt->page1);
- if( rc!=SQLITE_OK ){
- return rc;
- }
+ if( sqlitepager_isreadonly(pBt->pPager) ){
+ return SQLITE_READONLY;
+ }
+ rc = sqlitepager_write(pBt->page1);
+ if( rc==SQLITE_OK ){
rc = newDatabase(pBt);
}
- pBt->inTrans = 1;
- return rc;
-}
-
-/*
-** If there are no outstanding cursors and we are not in the middle
-** of a transaction but there is a read lock on the database, then
-** this routine unrefs the first page of the database file which
-** has the effect of releasing the read lock.
-**
-** If there are any outstanding cursors, this routine is a no-op.
-**
-** If there is a transaction in progress, this routine is a no-op.
-*/
-static void unlockBtreeIfUnused(Btree *pBt){
- if( pBt->inTrans==0 && pBt->pCursor==0 && pBt->page1!=0 ){
- sqlitepager_unref(pBt->page1);
- pBt->page1 = 0;
- pBt->inTrans = 0;
+ if( rc==SQLITE_OK ){
+ pBt->inTrans = 1;
+ }else{
+ unlockBtreeIfUnused(pBt);
}
+ return rc;
}
/*
** ROLLBACK
** PRAGMA
**
-** $Id: build.c,v 1.57 2001/11/22 00:01:27 drh Exp $
+** $Id: build.c,v 1.58 2001/12/05 00:21:20 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
*/
static void changeCookie(sqlite *db){
if( db->next_cookie==db->schema_cookie ){
- db->next_cookie = db->schema_cookie + sqliteRandomByte(db) + 1;
+ db->next_cookie = db->schema_cookie + sqliteRandomByte() + 1;
db->flags |= SQLITE_InternChanges;
}
}
** other files are for internal use by SQLite and should not be
** accessed by users of the library.
**
-** $Id: main.c,v 1.50 2001/11/23 00:24:12 drh Exp $
+** $Id: main.c,v 1.51 2001/12/05 00:21:20 drh Exp $
*/
#include "sqliteInt.h"
#include "os.h"
if( db==0 ) goto no_mem_on_open;
sqliteHashInit(&db->tblHash, SQLITE_HASH_STRING, 0);
sqliteHashInit(&db->idxHash, SQLITE_HASH_STRING, 0);
- db->nextRowid = sqliteRandomInteger(db);
+ db->nextRowid = sqliteRandomInteger();
/* Open the backend database driver */
rc = sqliteBtreeOpen(zFilename, mode, MAX_PAGES, &db->pBe);
int sqliteOsUnlock(OsFile);
int sqliteOsRandomSeed(char*);
int sqliteOsSleep(int ms);
-void sqliteOsEnterMutex();
-void sqliteOsLeaveMutex();
+void sqliteOsEnterMutex(void);
+void sqliteOsLeaveMutex(void);
** file simultaneously, or one process from reading the database while
** another is writing.
**
-** @(#) $Id: pager.c,v 1.31 2001/11/22 00:01:27 drh Exp $
+** @(#) $Id: pager.c,v 1.32 2001/12/05 00:21:20 drh Exp $
*/
#include "sqliteInt.h"
#include "pager.h"
}
sqliteOsUnlock(pPager->fd);
if( sqliteOsLock(pPager->fd, 1)!=SQLITE_OK ){
+ sqliteOsUnlock(pPager->fd);
+ rc = sqliteOsLock(pPager->fd, 0);
sqliteFree(pPager->aInJournal);
sqliteOsClose(pPager->jfd);
sqliteOsDelete(pPager->zJournal);
pPager->journalOpen = 0;
- pPager->state = SQLITE_UNLOCK;
- pPager->errMask |= PAGER_ERR_LOCK;
- return SQLITE_PROTOCOL;
+ if( rc ){
+ pPager->state = SQLITE_UNLOCK;
+ pPager->errMask |= PAGER_ERR_LOCK;
+ return SQLITE_PROTOCOL;
+ }else{
+ pPager->state = SQLITE_READLOCK;
+ return SQLITE_BUSY;
+ }
}
pPager->state = SQLITE_WRITELOCK;
sqlitepager_pagecount(pPager);
*************************************************************************
** Internal interface definitions for SQLite.
**
-** @(#) $Id: sqliteInt.h,v 1.71 2001/11/22 00:01:27 drh Exp $
+** @(#) $Id: sqliteInt.h,v 1.72 2001/12/05 00:21:20 drh Exp $
*/
#include "sqlite.h"
#include "hash.h"
int sqliteExprAnalyzeAggregates(Parse*, Expr*);
void sqliteParseInfoReset(Parse*);
Vdbe *sqliteGetVdbe(Parse*);
-int sqliteRandomByte();
-int sqliteRandomInteger();
+int sqliteRandomByte(void);
+int sqliteRandomInteger(void);
void sqliteBeginTransaction(Parse*);
void sqliteCommitTransaction(Parse*);
void sqliteRollbackTransaction(Parse*);
puts "<DD><P><UL>$desc</UL></P></DD>"
}
-chng {2001 Nov ?? (2.1.4)} {
+chng {2001 Dec 4 (2.1.4)} {
+<li>Sometime <b>sqlite_exec()</b> would return SQLITE_PROTOCOL when it
+ should have returned SQLITE_BUSY.</li>
+<li>The fix to the previous bug uncovered a deadlock which was also
+ fixed.</li>
<li>Add the ability to put a single .command in the second argument
of the sqlite shell</li>
+<li>Updates to the FAQ</li>
}
chng {2001 Nov 23 (2.1.3)} {
#
# Run this script to generated a faq.html output file
#
-set rcsid {$Id: faq.tcl,v 1.2 2001/11/24 13:23:05 drh Exp $}
+set rcsid {$Id: faq.tcl,v 1.3 2001/12/05 00:21:21 drh Exp $}
puts {<html>
<head>
}
faq {
- The second INSERT in the following sequence of commands returns with
- constraint error.
+ Why does the second INSERT in the following sequence of commands throw
+ a constraint exception?
<blockquote>
CREATE TABLE t(s varchar(10) primary key);<br>
INSERT INTO t VALUES('0');<br>
INSERT INTO t VALUES('0.0');<br>
</blockquote>
- Why is this?
} {
<p>Because column <b>s</b> is a primary key, all values of <b>s</b> must
be unique. But SQLite thinks that <b>'0'</b> and <b>'0.0'</b> are the
My linux box is not able to read an SQLite database that was created
on my SparcStation.
} {
- <p>The x86 processor on your windows box is little-endian (meaning that
+ <p>The x86 processor on your linux box is little-endian (meaning that
the least signification byte of integers comes first) but the Sparc is
big-endian (the most significant bytes comes first). SQLite databases
created on a little-endian architecture cannot be used on a big-endian
there is no way to get a listing of temporary tables and indices.</p>
}
+faq {
+ Is there any known size limits to SQLite databases.
+} {
+ <p>Internally, SQLite can handle databases up to 2^40 bytes (1 terabyte)
+ in size. But the backend interface to POSIX and Win32 limits files to
+ 2^31 (2 gigabytes).</p>
+
+ <p>SQLite arbitrarily limits the amount of data in one row to 1 megabyte.
+ There is a single #define in the source code that can be changed to raise
+ this limit as high as 16 megabytes if desired.</p>
+
+ <p>There is a theoretical limit of about 2^32 (4 billion) rows
+ in a single table, but there
+ is no way to test this limit without exceeding the maximum file size, so
+ it is not really an issue. There is also a theoretical limit of about 2^32
+ tables and indices, but again it is not really possible to reach this
+ limit due to the file size constraint.</p>
+
+ <p>The name and "CREATE TABLE" statement for a table must fit entirely
+ within a 1-megabyte row of the SQLITE_MASTER table. Other than this,
+ there are no constraints on the length of the name of a table, or on the
+ number of columns, etc. Indices are similarly unconstrained.</p>
+}
+
# End of questions and answers.
#############
puts " <DT><A HREF=\"#q$i\">($i)</A></DT>"
puts " <DD>[lindex $faq($i) 0]</DD>"
}
-puts {</DL><HR />}
+puts {</DL>}
for {set i 1} {$i<$cnt} {incr i} {
- puts "<A NAME=\"q$i\">"
+ puts "<A NAME=\"q$i\"><HR />"
puts "<P><B>($i) [lindex $faq($i) 0]</B></P>\n"
- puts "<BLOCKQUOTE>[lindex $faq($i) 1]</BLOCKQUOTE>\n"
+ puts "<BLOCKQUOTE>[lindex $faq($i) 1]</BLOCKQUOTE></LI>\n"
}
puts {
+</OL>
<p><hr /></p>
<p><a href="index.html"><img src="/goback.jpg" border=0 />
Back to the SQLite Home Page</a>
projects / thirdparty / sqlite.git / commitdiff
