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Add serial-types 8 and 9 for integer constants of 0 and 1 that use zero

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bytes of storage.  Make the default file format 4.  Add the
SQLITE_DEFAULT_FILE_FORMAT compile-time option to lower the default
file format number so that newly created databases can be read and
written by older versions of SQLite. (CVS 2845)

FossilOrigin-Name: ae301db8a61a74bc72f67f5766811d89a3b3ec72
This commit is contained in:
drh
2005-12-29 19:23:06 +00:00
parent aa81608eb0
commit d946db0064
11 changed files with 95 additions and 74 deletions
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6
src/prepare.c
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@@ -13,7 +13,7 @@
** interface, and routines that contribute to loading the database schema
** from disk.
**
** $Id: prepare.c,v 1.10 2005/12/16 01:06:17 drh Exp $
** $Id: prepare.c,v 1.11 2005/12/29 19:23:07 drh Exp $
*/
#include "sqliteInt.h"
#include "os.h"
@@ -258,13 +258,13 @@ static int sqlite3InitOne(sqlite3 *db, int iDb, char **pzErrMsg){
** file_format==1 Version 3.0.0.
** file_format==2 Version 3.1.3. // ALTER TABLE ADD COLUMN
** file_format==3 Version 3.1.4. // ditto but with non-NULL defaults
** file_format==4 Version 3.3.0. // DESC indices
** file_format==4 Version 3.3.0. // DESC indices. Boolean constants
*/
pDb->file_format = meta[1];
if( pDb->file_format==0 ){
pDb->file_format = 1;
}
if( pDb->file_format>4 ){
if( pDb->file_format>SQLITE_MAX_FILE_FORMAT ){
sqlite3BtreeCloseCursor(curMain);
sqlite3SetString(pzErrMsg, "unsupported file format", (char*)0);
return SQLITE_ERROR;