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Overview
Comment: | Enhance the VACUUM command so that it can operate on an attached database. |
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Downloads: | Tarball | ZIP archive | SQL archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
083f9e6270fa4faa402b91231271da4f |
User & Date: | drh 2016-08-19 15:15:55 |
Context
2016-08-22
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20:49 | Add an experimental module to detect conflicts between sessions changesets. (check-in: 0c9fd6b7 user: dan tags: changebatch) | |
20:10 | Add support for the SQLITE_DBCONFIG_MAINDBNAME configuration option. (check-in: 78395193 user: drh tags: trunk) | |
2016-08-19
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15:41 | Merge recent enhancements from trunk. (check-in: b1787236 user: drh tags: rowvalue) | |
15:17 | Merge the VACUUM attached database enhancement from trunk. (Closed-Leaf check-in: 12d5e38d user: drh tags: dbconfig_maindbname) | |
15:15 | Enhance the VACUUM command so that it can operate on an attached database. (check-in: 083f9e62 user: drh tags: trunk) | |
15:12 | Disable row counting on queries run while doing a VACUUM. (Closed-Leaf check-in: ad35ef11 user: drh tags: vacuum-attached-db) | |
2016-08-18
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22:19 | Change the name of Db.zName to Db.zDbSName for improved long-term code maintainability. (check-in: cb9865e1 user: drh tags: trunk) | |
Changes
Changes to src/build.c.
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769 770 771 772 773 774 775 | *pUnqual = pName2; iDb = sqlite3FindDb(db, pName1); if( iDb<0 ){ sqlite3ErrorMsg(pParse, "unknown database %T", pName1); return -1; } }else{ | | | 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 | *pUnqual = pName2; iDb = sqlite3FindDb(db, pName1); if( iDb<0 ){ sqlite3ErrorMsg(pParse, "unknown database %T", pName1); return -1; } }else{ assert( db->init.iDb==0 || db->init.busy || (db->flags & SQLITE_Vacuum)!=0); iDb = db->init.iDb; *pUnqual = pName1; } return iDb; } /* |
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2007 2008 2009 2010 2011 2012 2013 | sqlite3DbFree(db, zStmt); sqlite3ChangeCookie(pParse, iDb); #ifndef SQLITE_OMIT_AUTOINCREMENT /* Check to see if we need to create an sqlite_sequence table for ** keeping track of autoincrement keys. */ | | | 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 | sqlite3DbFree(db, zStmt); sqlite3ChangeCookie(pParse, iDb); #ifndef SQLITE_OMIT_AUTOINCREMENT /* Check to see if we need to create an sqlite_sequence table for ** keeping track of autoincrement keys. */ if( (p->tabFlags & TF_Autoincrement)!=0 ){ Db *pDb = &db->aDb[iDb]; assert( sqlite3SchemaMutexHeld(db, iDb, 0) ); if( pDb->pSchema->pSeqTab==0 ){ sqlite3NestedParse(pParse, "CREATE TABLE %Q.sqlite_sequence(name,seq)", pDb->zDbSName ); |
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Changes to src/insert.c.
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196 197 198 199 200 201 202 | return 0; } #ifndef SQLITE_OMIT_AUTOINCREMENT /* ** Locate or create an AutoincInfo structure associated with table pTab ** which is in database iDb. Return the register number for the register | | > > | 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 | return 0; } #ifndef SQLITE_OMIT_AUTOINCREMENT /* ** Locate or create an AutoincInfo structure associated with table pTab ** which is in database iDb. Return the register number for the register ** that holds the maximum rowid. Return zero if pTab is not an AUTOINCREMENT ** table. (Also return zero when doing a VACUUM since we do not want to ** update the AUTOINCREMENT counters during a VACUUM.) ** ** There is at most one AutoincInfo structure per table even if the ** same table is autoincremented multiple times due to inserts within ** triggers. A new AutoincInfo structure is created if this is the ** first use of table pTab. On 2nd and subsequent uses, the original ** AutoincInfo structure is used. ** |
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219 220 221 222 223 224 225 | */ static int autoIncBegin( Parse *pParse, /* Parsing context */ int iDb, /* Index of the database holding pTab */ Table *pTab /* The table we are writing to */ ){ int memId = 0; /* Register holding maximum rowid */ | | > > | 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 | */ static int autoIncBegin( Parse *pParse, /* Parsing context */ int iDb, /* Index of the database holding pTab */ Table *pTab /* The table we are writing to */ ){ int memId = 0; /* Register holding maximum rowid */ if( (pTab->tabFlags & TF_Autoincrement)!=0 && (pParse->db->flags & SQLITE_Vacuum)==0 ){ Parse *pToplevel = sqlite3ParseToplevel(pParse); AutoincInfo *pInfo; pInfo = pToplevel->pAinc; while( pInfo && pInfo->pTab!=pTab ){ pInfo = pInfo->pNext; } if( pInfo==0 ){ pInfo = sqlite3DbMallocRawNN(pParse->db, sizeof(*pInfo)); |
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Changes to src/parse.y.
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1281 1282 1283 1284 1285 1286 1287 | // cmd ::= DROP INDEX ifexists(E) fullname(X). {sqlite3DropIndex(pParse, X, E);} ///////////////////////////// The VACUUM command ///////////////////////////// // %ifndef SQLITE_OMIT_VACUUM %ifndef SQLITE_OMIT_ATTACH | | | | 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 | // cmd ::= DROP INDEX ifexists(E) fullname(X). {sqlite3DropIndex(pParse, X, E);} ///////////////////////////// The VACUUM command ///////////////////////////// // %ifndef SQLITE_OMIT_VACUUM %ifndef SQLITE_OMIT_ATTACH cmd ::= VACUUM. {sqlite3Vacuum(pParse,0);} cmd ::= VACUUM nm(X). {sqlite3Vacuum(pParse,&X);} %endif SQLITE_OMIT_ATTACH %endif SQLITE_OMIT_VACUUM ///////////////////////////// The PRAGMA command ///////////////////////////// // %ifndef SQLITE_OMIT_PRAGMA cmd ::= PRAGMA nm(X) dbnm(Z). {sqlite3Pragma(pParse,&X,&Z,0,0);} |
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Changes to src/prepare.c.
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69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 | }else if( sqlite3_strnicmp(argv[2],"create ",7)==0 ){ /* Call the parser to process a CREATE TABLE, INDEX or VIEW. ** But because db->init.busy is set to 1, no VDBE code is generated ** or executed. All the parser does is build the internal data ** structures that describe the table, index, or view. */ int rc; sqlite3_stmt *pStmt; TESTONLY(int rcp); /* Return code from sqlite3_prepare() */ assert( db->init.busy ); db->init.iDb = iDb; db->init.newTnum = sqlite3Atoi(argv[1]); db->init.orphanTrigger = 0; TESTONLY(rcp = ) sqlite3_prepare(db, argv[2], -1, &pStmt, 0); rc = db->errCode; assert( (rc&0xFF)==(rcp&0xFF) ); | > | > | 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 | }else if( sqlite3_strnicmp(argv[2],"create ",7)==0 ){ /* Call the parser to process a CREATE TABLE, INDEX or VIEW. ** But because db->init.busy is set to 1, no VDBE code is generated ** or executed. All the parser does is build the internal data ** structures that describe the table, index, or view. */ int rc; u8 saved_iDb = db->init.iDb; sqlite3_stmt *pStmt; TESTONLY(int rcp); /* Return code from sqlite3_prepare() */ assert( db->init.busy ); db->init.iDb = iDb; db->init.newTnum = sqlite3Atoi(argv[1]); db->init.orphanTrigger = 0; TESTONLY(rcp = ) sqlite3_prepare(db, argv[2], -1, &pStmt, 0); rc = db->errCode; assert( (rc&0xFF)==(rcp&0xFF) ); db->init.iDb = saved_iDb; assert( saved_iDb==0 || (db->flags & SQLITE_Vacuum)!=0 ); if( SQLITE_OK!=rc ){ if( db->init.orphanTrigger ){ assert( iDb==1 ); }else{ pData->rc = rc; if( rc==SQLITE_NOMEM ){ sqlite3OomFault(db); |
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Changes to src/sqliteInt.h.
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3697 3698 3699 3700 3701 3702 3703 | #define LOCATE_VIEW 0x01 #define LOCATE_NOERR 0x02 Table *sqlite3LocateTable(Parse*,u32 flags,const char*, const char*); Table *sqlite3LocateTableItem(Parse*,u32 flags,struct SrcList_item *); Index *sqlite3FindIndex(sqlite3*,const char*, const char*); void sqlite3UnlinkAndDeleteTable(sqlite3*,int,const char*); void sqlite3UnlinkAndDeleteIndex(sqlite3*,int,const char*); | | | | 3697 3698 3699 3700 3701 3702 3703 3704 3705 3706 3707 3708 3709 3710 3711 3712 | #define LOCATE_VIEW 0x01 #define LOCATE_NOERR 0x02 Table *sqlite3LocateTable(Parse*,u32 flags,const char*, const char*); Table *sqlite3LocateTableItem(Parse*,u32 flags,struct SrcList_item *); Index *sqlite3FindIndex(sqlite3*,const char*, const char*); void sqlite3UnlinkAndDeleteTable(sqlite3*,int,const char*); void sqlite3UnlinkAndDeleteIndex(sqlite3*,int,const char*); void sqlite3Vacuum(Parse*,Token*); int sqlite3RunVacuum(char**, sqlite3*, int); char *sqlite3NameFromToken(sqlite3*, Token*); int sqlite3ExprCompare(Expr*, Expr*, int); int sqlite3ExprListCompare(ExprList*, ExprList*, int); int sqlite3ExprImpliesExpr(Expr*, Expr*, int); void sqlite3ExprAnalyzeAggregates(NameContext*, Expr*); void sqlite3ExprAnalyzeAggList(NameContext*,ExprList*); int sqlite3ExprCoveredByIndex(Expr*, int iCur, Index *pIdx); |
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Changes to src/vacuum.c.
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14 15 16 17 18 19 20 | ** Most of the code in this file may be omitted by defining the ** SQLITE_OMIT_VACUUM macro. */ #include "sqliteInt.h" #include "vdbeInt.h" #if !defined(SQLITE_OMIT_VACUUM) && !defined(SQLITE_OMIT_ATTACH) | < < < < < < < < < | < < < | > > > > > > > | < < | > | > | > | > > > > | < > | > > | | > > | < < < < | | > | | < | | | < | | < < < < | 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 | ** Most of the code in this file may be omitted by defining the ** SQLITE_OMIT_VACUUM macro. */ #include "sqliteInt.h" #include "vdbeInt.h" #if !defined(SQLITE_OMIT_VACUUM) && !defined(SQLITE_OMIT_ATTACH) /* ** Execute zSql on database db. ** ** If zSql returns rows, then each row will have exactly one ** column. (This will only happen if zSql begins with "SELECT".) ** Take each row of result and call execSql() again recursively. ** ** The execSqlF() routine does the same thing, except it accepts ** a format string as its third argument */ static int execSql(sqlite3 *db, char **pzErrMsg, const char *zSql){ sqlite3_stmt *pStmt; int rc; /* printf("SQL: [%s]\n", zSql); fflush(stdout); */ rc = sqlite3_prepare_v2(db, zSql, -1, &pStmt, 0); if( rc!=SQLITE_OK ) return rc; while( SQLITE_ROW==(rc = sqlite3_step(pStmt)) ){ const char *zSubSql = (const char*)sqlite3_column_text(pStmt,0); assert( sqlite3_strnicmp(zSql,"SELECT",6)==0 ); if( zSubSql ){ assert( zSubSql[0]!='S' ); rc = execSql(db, pzErrMsg, zSubSql); if( rc!=SQLITE_OK ) break; } } assert( rc!=SQLITE_ROW ); if( rc==SQLITE_DONE ) rc = SQLITE_OK; if( rc ){ sqlite3SetString(pzErrMsg, db, sqlite3_errmsg(db)); } (void)sqlite3_finalize(pStmt); return rc; } static int execSqlF(sqlite3 *db, char **pzErrMsg, const char *zSql, ...){ char *z; va_list ap; int rc; va_start(ap, zSql); z = sqlite3VMPrintf(db, zSql, ap); va_end(ap); if( z==0 ) return SQLITE_NOMEM; rc = execSql(db, pzErrMsg, z); sqlite3DbFree(db, z); return rc; } /* ** The VACUUM command is used to clean up the database, ** collapse free space, etc. It is modelled after the VACUUM command ** in PostgreSQL. The VACUUM command works as follows: ** |
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97 98 99 100 101 102 103 | ** the copy of step (3) were replaced by deleting the original database ** and renaming the transient database as the original. But that will ** not work if other processes are attached to the original database. ** And a power loss in between deleting the original and renaming the ** transient would cause the database file to appear to be deleted ** following reboot. */ | | > | | | | < > | > | > | < < < < < | > | | | < < | | | < | | 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 | ** the copy of step (3) were replaced by deleting the original database ** and renaming the transient database as the original. But that will ** not work if other processes are attached to the original database. ** And a power loss in between deleting the original and renaming the ** transient would cause the database file to appear to be deleted ** following reboot. */ void sqlite3Vacuum(Parse *pParse, Token *pNm){ Vdbe *v = sqlite3GetVdbe(pParse); int iDb = pNm ? sqlite3TwoPartName(pParse, pNm, pNm, &pNm) : 0; if( v && (iDb>=2 || iDb==0) ){ sqlite3VdbeAddOp1(v, OP_Vacuum, iDb); sqlite3VdbeUsesBtree(v, iDb); } return; } /* ** This routine implements the OP_Vacuum opcode of the VDBE. */ int sqlite3RunVacuum(char **pzErrMsg, sqlite3 *db, int iDb){ int rc = SQLITE_OK; /* Return code from service routines */ Btree *pMain; /* The database being vacuumed */ Btree *pTemp; /* The temporary database we vacuum into */ int saved_flags; /* Saved value of the db->flags */ int saved_nChange; /* Saved value of db->nChange */ int saved_nTotalChange; /* Saved value of db->nTotalChange */ u8 saved_mTrace; /* Saved trace settings */ Db *pDb = 0; /* Database to detach at end of vacuum */ int isMemDb; /* True if vacuuming a :memory: database */ int nRes; /* Bytes of reserved space at the end of each page */ int nDb; /* Number of attached databases */ const char *zDbMain; /* Schema name of database to vacuum */ if( !db->autoCommit ){ sqlite3SetString(pzErrMsg, db, "cannot VACUUM from within a transaction"); return SQLITE_ERROR; } if( db->nVdbeActive>1 ){ sqlite3SetString(pzErrMsg, db,"cannot VACUUM - SQL statements in progress"); return SQLITE_ERROR; } /* Save the current value of the database flags so that it can be ** restored before returning. Then set the writable-schema flag, and ** disable CHECK and foreign key constraints. */ saved_flags = db->flags; saved_nChange = db->nChange; saved_nTotalChange = db->nTotalChange; saved_mTrace = db->mTrace; db->flags |= (SQLITE_WriteSchema | SQLITE_IgnoreChecks | SQLITE_PreferBuiltin | SQLITE_Vacuum); db->flags &= ~(SQLITE_ForeignKeys | SQLITE_ReverseOrder | SQLITE_CountRows); db->mTrace = 0; zDbMain = db->aDb[iDb].zDbSName; pMain = db->aDb[iDb].pBt; isMemDb = sqlite3PagerIsMemdb(sqlite3BtreePager(pMain)); /* Attach the temporary database as 'vacuum_db'. The synchronous pragma ** can be set to 'off' for this file, as it is not recovered if a crash ** occurs anyway. The integrity of the database is maintained by a ** (possibly synchronous) transaction opened on the main database before ** sqlite3BtreeCopyFile() is called. ** ** An optimisation would be to use a non-journaled pager. ** (Later:) I tried setting "PRAGMA vacuum_db.journal_mode=OFF" but ** that actually made the VACUUM run slower. Very little journalling ** actually occurs when doing a vacuum since the vacuum_db is initially ** empty. Only the journal header is written. Apparently it takes more ** time to parse and run the PRAGMA to turn journalling off than it does ** to write the journal header file. */ nDb = db->nDb; rc = execSql(db, pzErrMsg, "ATTACH''AS vacuum_db"); if( rc!=SQLITE_OK ) goto end_of_vacuum; assert( (db->nDb-1)==nDb ); pDb = &db->aDb[nDb]; assert( strcmp(pDb->zDbSName,"vacuum_db")==0 ); pTemp = pDb->pBt; /* The call to execSql() to attach the temp database has left the file ** locked (as there was more than one active statement when the transaction ** to read the schema was concluded. Unlock it here so that this doesn't ** cause problems for the call to BtreeSetPageSize() below. */ sqlite3BtreeCommit(pTemp); nRes = sqlite3BtreeGetOptimalReserve(pMain); /* A VACUUM cannot change the pagesize of an encrypted database. */ #ifdef SQLITE_HAS_CODEC if( db->nextPagesize ){ extern void sqlite3CodecGetKey(sqlite3*, int, void**, int*); int nKey; char *zKey; sqlite3CodecGetKey(db, 0, (void**)&zKey, &nKey); if( nKey ) db->nextPagesize = 0; } #endif sqlite3BtreeSetCacheSize(pTemp, db->aDb[iDb].pSchema->cache_size); sqlite3BtreeSetSpillSize(pTemp, sqlite3BtreeSetSpillSize(pMain,0)); sqlite3BtreeSetPagerFlags(pTemp, PAGER_SYNCHRONOUS_OFF); /* Begin a transaction and take an exclusive lock on the main database ** file. This is done before the sqlite3BtreeGetPageSize(pMain) call below, ** to ensure that we do not try to change the page-size on a WAL database. */ rc = execSql(db, pzErrMsg, "BEGIN"); if( rc!=SQLITE_OK ) goto end_of_vacuum; rc = sqlite3BtreeBeginTrans(pMain, 2); if( rc!=SQLITE_OK ) goto end_of_vacuum; /* Do not attempt to change the page size for a WAL database */ if( sqlite3PagerGetJournalMode(sqlite3BtreePager(pMain)) ==PAGER_JOURNALMODE_WAL ){ |
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229 230 231 232 233 234 235 | sqlite3BtreeSetAutoVacuum(pTemp, db->nextAutovac>=0 ? db->nextAutovac : sqlite3BtreeGetAutoVacuum(pMain)); #endif /* Query the schema of the main database. Create a mirror schema ** in the temporary database. */ | > | | | | > | | | > > | < < < < < | | | | < | > < < < < < < < < < < < < < < < | | < | | | > | 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 | sqlite3BtreeSetAutoVacuum(pTemp, db->nextAutovac>=0 ? db->nextAutovac : sqlite3BtreeGetAutoVacuum(pMain)); #endif /* Query the schema of the main database. Create a mirror schema ** in the temporary database. */ db->init.iDb = nDb; /* force new CREATE statements into vacuum_db */ rc = execSqlF(db, pzErrMsg, "SELECT sql FROM \"%w\".sqlite_master" " WHERE type='table'AND name<>'sqlite_sequence'" " AND coalesce(rootpage,1)>0", zDbMain ); if( rc!=SQLITE_OK ) goto end_of_vacuum; rc = execSqlF(db, pzErrMsg, "SELECT sql FROM \"%w\".sqlite_master" " WHERE type='index' AND length(sql)>10", zDbMain ); if( rc!=SQLITE_OK ) goto end_of_vacuum; db->init.iDb = 0; /* Loop through the tables in the main database. For each, do ** an "INSERT INTO vacuum_db.xxx SELECT * FROM main.xxx;" to copy ** the contents to the temporary database. */ rc = execSqlF(db, pzErrMsg, "SELECT'INSERT INTO vacuum_db.'||quote(name)" "||' SELECT*FROM\"%w\".'||quote(name)" "FROM vacuum_db.sqlite_master " "WHERE type='table'AND coalesce(rootpage,1)>0", zDbMain ); assert( (db->flags & SQLITE_Vacuum)!=0 ); db->flags &= ~SQLITE_Vacuum; if( rc!=SQLITE_OK ) goto end_of_vacuum; /* Copy the triggers, views, and virtual tables from the main database ** over to the temporary database. None of these objects has any ** associated storage, so all we have to do is copy their entries ** from the SQLITE_MASTER table. */ rc = execSqlF(db, pzErrMsg, "INSERT INTO vacuum_db.sqlite_master" " SELECT*FROM \"%w\".sqlite_master" " WHERE type IN('view','trigger')" " OR(type='table'AND rootpage=0)", zDbMain ); if( rc ) goto end_of_vacuum; /* At this point, there is a write transaction open on both the ** vacuum database and the main database. Assuming no error occurs, ** both transactions are closed by this block - the main database ** transaction by sqlite3BtreeCopyFile() and the other by an explicit |
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340 341 342 343 344 345 346 347 348 349 350 351 352 353 | } assert( rc==SQLITE_OK ); rc = sqlite3BtreeSetPageSize(pMain, sqlite3BtreeGetPageSize(pTemp), nRes,1); end_of_vacuum: /* Restore the original value of db->flags */ db->flags = saved_flags; db->nChange = saved_nChange; db->nTotalChange = saved_nTotalChange; db->mTrace = saved_mTrace; sqlite3BtreeSetPageSize(pMain, -1, -1, 1); /* Currently there is an SQL level transaction open on the vacuum | > | 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 | } assert( rc==SQLITE_OK ); rc = sqlite3BtreeSetPageSize(pMain, sqlite3BtreeGetPageSize(pTemp), nRes,1); end_of_vacuum: /* Restore the original value of db->flags */ db->init.iDb = 0; db->flags = saved_flags; db->nChange = saved_nChange; db->nTotalChange = saved_nTotalChange; db->mTrace = saved_mTrace; sqlite3BtreeSetPageSize(pMain, -1, -1, 1); /* Currently there is an SQL level transaction open on the vacuum |
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Changes to src/vdbe.c.
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6258 6259 6260 6261 6262 6263 6264 | sqlite3VdbeChangeEncoding(pOut, encoding); if( rc ) goto abort_due_to_error; break; }; #endif /* SQLITE_OMIT_PRAGMA */ #if !defined(SQLITE_OMIT_VACUUM) && !defined(SQLITE_OMIT_ATTACH) | | | | < | | 6258 6259 6260 6261 6262 6263 6264 6265 6266 6267 6268 6269 6270 6271 6272 6273 6274 6275 6276 6277 6278 6279 | sqlite3VdbeChangeEncoding(pOut, encoding); if( rc ) goto abort_due_to_error; break; }; #endif /* SQLITE_OMIT_PRAGMA */ #if !defined(SQLITE_OMIT_VACUUM) && !defined(SQLITE_OMIT_ATTACH) /* Opcode: Vacuum P1 * * * * ** ** Vacuum the entire database P1. P1 is 0 for "main", and 2 or more ** for an attached database. The "temp" database may not be vacuumed. */ case OP_Vacuum: { assert( p->readOnly==0 ); rc = sqlite3RunVacuum(&p->zErrMsg, db, pOp->p1); if( rc ) goto abort_due_to_error; break; } #endif #if !defined(SQLITE_OMIT_AUTOVACUUM) /* Opcode: IncrVacuum P1 P2 * * * |
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Changes to test/e_vacuum.test.
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198 199 200 201 202 203 204 | ATTACH 'test.db2' AS aux; PRAGMA aux.page_size = 1024; CREATE TABLE aux.t3 AS SELECT * FROM t1; DELETE FROM t3; } {} set original_size [file size test.db2] | | < < < < | 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 | ATTACH 'test.db2' AS aux; PRAGMA aux.page_size = 1024; CREATE TABLE aux.t3 AS SELECT * FROM t1; DELETE FROM t3; } {} set original_size [file size test.db2] # Vacuuming the main database does not affect aux do_execsql_test e_vacuum-2.1.3 { VACUUM } {} do_test e_vacuum-2.1.6 { expr {[file size test.db2]==$::original_size} } 1 # EVIDENCE-OF: R-17495-17419 The VACUUM command may change the ROWIDs of # entries in any tables that do not have an explicit INTEGER PRIMARY # KEY. # # Tests e_vacuum-3.1.1 - 3.1.2 demonstrate that rowids can change when |
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Added test/vacuum5.test.
> > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 | # 2016-08-19 # # The author disclaims copyright to this source code. In place of # a legal notice, here is a blessing: # # May you do good and not evil. # May you find forgiveness for yourself and forgive others. # May you share freely, never taking more than you give. # #*********************************************************************** # # This file implements a test for VACUUM on attached databases. # set testdir [file dirname $argv0] source $testdir/tester.tcl # If the VACUUM statement is disabled in the current build, skip all # the tests in this file. # ifcapable !vacuum { finish_test return } forcedelete test2.db test3.db do_execsql_test vacuum5-1.1 { CREATE TABLE main.t1(a,b); WITH RECURSIVE c(x) AS (VALUES(1) UNION ALL SELECT x+1 FROM c WHERE x<1000) INSERT INTO t1(a,b) SELECT x, randomblob(1000) FROM c; CREATE TEMP TABLE ttemp(x,y); INSERT INTO ttemp SELECT * FROM t1; ATTACH 'test2.db' AS x2; ATTACH 'test3.db' AS x3; CREATE TABLE x2.t2(c,d); INSERT INTO t2 SELECT * FROM t1; CREATE TABLE x3.t3(e,f); INSERT INTO t3 SELECT * FROM t1; DELETE FROM t1 WHERE (rowid%3)!=0; DELETE FROM t2 WHERE (rowid%4)!=0; DELETE FROM t3 WHERE (rowid%5)!=0; PRAGMA main.integrity_check; PRAGMA x2.integrity_check; PRAGMA x3.integrity_check; } {ok ok ok} set size1 [file size test.db] set size2 [file size test2.db] set size3 [file size test3.db] do_execsql_test vacuum5-1.2.1 { VACUUM main; } {} do_test vacuum5-1.2.2 { expr {[file size test.db]<$size1} } {1} do_test vacuum5-1.2.3 { file size test2.db } $size2 do_test vacuum5-1.2.4 { file size test3.db } $size3 set size1 [file size test.db] do_execsql_test vacuum-1.2.5 { DELETE FROM t1; PRAGMA main.integrity_check; } {ok} do_execsql_test vacuum5-1.3.1 { VACUUM x2; } {} do_test vacuum5-1.3.2 { file size test.db } $size1 do_test vacuum5-1.3.3 { expr {[file size test2.db]<$size2} } 1 do_test vacuum5-1.3.4 { file size test3.db } $size3 set size2 [file size test2.db] do_execsql_test vacuum-1.3.5 { DELETE FROM t2; PRAGMA x2.integrity_check; } {ok} do_execsql_test vacuum5-1.4.1 { VACUUM x3; } {} do_test vacuum5-1.3.2 { file size test.db } $size1 do_test vacuum5-1.3.3 { file size test2.db } $size2 do_test vacuum5-1.3.4 { expr {[file size test3.db]<$size3} } 1 # VACUUM is a no-op on the TEMP table # set sizeTemp [db one {PRAGMA temp.page_count}] do_execsql_test vacuum5-1.4.1 { VACUUM temp; } {} do_execsql_test vacuum5-1.4.2 { PRAGMA temp.page_count; } $sizeTemp do_catchsql_test vacuum5-2.0 { VACUUM olaf; } {1 {unknown database olaf}} |