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Fix vacuum so that it works with blobs. (CVS 1490)

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FossilOrigin-Name: 4feb4b9a71ce7a92924d2358a7ccecb4cca19223
This commit is contained in:
danielk1977
2004-05-29 10:23:19 +00:00
parent e7d00f5825
commit 3df6b2570f
11 changed files with 229 additions and 304 deletions
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63
src/main.c
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@@ -14,7 +14,7 @@
** other files are for internal use by SQLite and should not be
** accessed by users of the library.
**
** $Id: main.c,v 1.195 2004/05/27 23:56:16 danielk1977 Exp $
** $Id: main.c,v 1.196 2004/05/29 10:23:19 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include "os.h"
@@ -247,16 +247,28 @@ static int sqlite3InitOne(sqlite *db, int iDb, char **pzErrMsg){
memset(meta, 0, sizeof(meta));
}
db->aDb[iDb].schema_cookie = meta[0];
if( iDb==0 ){
db->next_cookie = meta[0];
db->file_format = meta[1];
if( meta[4] ){
/* If meta[4] is still zero, then we are opening a previously empty
** file. Leave db->enc to the default value set by the sqlite3_open()
** call in this case.
*/
/* If opening a non-empty database, check the text encoding. For the
** main database, set sqlite3.enc to the encoding of the main database.
** For an attached db, it is an error if the encoding is not the same
** as sqlite3.enc.
*/
if( meta[4] ){ /* text encoding */
if( iDb==0 ){
/* If opening the main database, set db->enc. */
db->enc = (u8)meta[4];
}else{
/* If opening an attached database, the encoding much match db->enc */
if( meta[4]!=db->enc ){
sqlite3BtreeCloseCursor(curMain);
sqlite3SetString(pzErrMsg, "attached databases must use the same"
" text encoding as main database", (char*)0);
return SQLITE_ERROR;
}
}
}
if( iDb==0 ){
size = meta[2];
if( size==0 ){ size = MAX_PAGES; }
db->cache_size = size;
@@ -266,40 +278,35 @@ static int sqlite3InitOne(sqlite *db, int iDb, char **pzErrMsg){
}
if( db->safety_level==0 ) db->safety_level = 2;
/*
** file_format==1 Version 3.0.0.
*/
/* FIX ME: Every struct Db will need a next_cookie */
db->next_cookie = meta[0];
db->file_format = meta[1];
if( db->file_format==0 ){
/* This happens if the database was initially empty */
db->file_format = 1;
}else if( db->file_format>1 ){
sqlite3BtreeCloseCursor(curMain);
sqlite3SetString(pzErrMsg, "unsupported file format", (char*)0);
return SQLITE_ERROR;
}
}else if( db->file_format!=meta[1] ){
if( meta[1]==0 ){
sqlite3SetString(pzErrMsg, "cannot attach empty database: ",
db->aDb[iDb].zName, (char*)0);
}else{
sqlite3SetString(pzErrMsg, "incompatible file format in auxiliary "
"database: ", db->aDb[iDb].zName, (char*)0);
}
sqlite3BtreeClose(db->aDb[iDb].pBt);
db->aDb[iDb].pBt = 0;
return SQLITE_FORMAT;
}
/*
** file_format==1 Version 3.0.0.
*/
if( meta[1]>1 ){
sqlite3BtreeCloseCursor(curMain);
sqlite3SetString(pzErrMsg, "unsupported file format", (char*)0);
return SQLITE_ERROR;
}
sqlite3BtreeSetCacheSize(db->aDb[iDb].pBt, db->cache_size);
sqlite3BtreeSetSafetyLevel(db->aDb[iDb].pBt, meta[3]==0 ? 2 : meta[3]);
/* Read the schema information out of the schema tables
*/
assert( db->init.busy );
sqlite3SafetyOff(db);
if( rc==SQLITE_EMPTY ){
/* For an empty database, there is nothing to read */
rc = SQLITE_OK;
}else{
sqlite3SafetyOff(db);
if( iDb==0 ){
/* This SQL statement tries to read the temp.* schema from the
** sqlite_temp_master table. It might return SQLITE_EMPTY.