Make VACUUM work when the page size is different than the default 1024.

Ticket #890. (CVS 1939)

FossilOrigin-Name: fa82becae7e41c47a6387061932f692c6f9f472e

manifest

@@ -1,5 +1,5 @@
-C Fix\sa\scomment.\s(CVS\s1938)
+C Make\sVACUUM\swork\swhen\sthe\spage\ssize\sis\sdifferent\sthan\sthe\sdefault\s1024.\nTicket\s#890.\s(CVS\s1939)
-D 2004-09-03T23:32:19
+D 2004-09-05T00:33:43
 F Makefile.in 65a7c43fcaf9a710d62f120b11b6e435eeb4a450
 F Makefile.linux-gcc a9e5a0d309fa7c38e7c14d3ecf7690879d3a5457
 F README f1de682fbbd94899d50aca13d387d1b3fd3be2dd
@@ -28,7 +28,7 @@ F sqlite3.def 84215604aa7b547d75e0f7b437966e7ad18fa8b2
 F sqlite3.pc.in 985b9bf34192a549d7d370e0f0b6b34a4f61369a
 F src/attach.c 0bd4f11da6999665da30625665a4096ba7898de6
 F src/auth.c 60db23b98bb94c8b0178180faaf49dc116674217
-F src/btree.c fd5e339c83459ea42fb055f0e59c0a682b0da422
+F src/btree.c fe763fde639793ef2010d5388d0d135ecc02b4eb
 F src/btree.h 94dfec0a1722d33359b23e7e310f2b64ffedf029
 F src/build.c 35275654d9c5ce6c1c0c78e391f85e6915a8a66b
 F src/date.c edff4aa851eeca8abbc737dc3933a2f0671156ce
@@ -74,7 +74,7 @@ F src/trigger.c 40e10f4b219b55e56478bc17480ce77654300e8d
 F src/update.c bbe126c67529bd699016af2d72bc4ceb8fd41527
 F src/utf.c 328890099db492dda5620ee5f924e244c6e57ff7
 F src/util.c d5aaf211543fb6e285654fada50252c857ac78aa
-F src/vacuum.c 47bf6837d39f5849b8eda7d037d3e21a26f736bc
+F src/vacuum.c c5f11bf25e49479940133d1bb882ad2a5d6fa021
 F src/vdbe.c 45f659497b479f001c2f4e8251474aba3975b9f8
 F src/vdbe.h e081c72cd0f7c19d49b1927460aeefcf0fbc85ac
 F src/vdbeInt.h f8df57a9dc272967991f806e612628e0aa57e705
@@ -151,7 +151,7 @@ F test/null.test 642428b6a5408cc5b954b49e1b6e5025e4458b2b
 F test/pager.test 059cc5c58d3b5a851343dff8c56cf7286425d03a
 F test/pager2.test 55469c7c1c1a54d6b32d7b3cc99001e90101a1ce
 F test/pager3.test 16f546293bb751b8151dc17df613fca938bbec8b
-F test/pagesize.test ada866e3d8bad7ec252d5131e2fd4d892b8fef8d
+F test/pagesize.test f8b46ec46b9fe9f708a8d757dda232588dfb7217
 F test/pragma.test 66a66b7f3b273b93325c9a5794acb418f52fdcbf
 F test/printf.test 5a30fb0d736148fca64cb1b7ed0390be7414e024
 F test/progress.test 76c722f090b1ccb575e7e4e203a71608c5763beb x
@@ -248,7 +248,7 @@ F www/tclsqlite.tcl 560ecd6a916b320e59f2917317398f3d59b7cc25
 F www/vdbe.tcl 59288db1ac5c0616296b26dce071c36cb611dfe9
 F www/version3.tcl 092a01f5ef430d2c4acc0ae558d74c4bb89638a0
 F www/whentouse.tcl a8335bce47cc2fddb07f19052cb0cb4d9129a8e4
-P 4595292f936bdbec10734f42682824e91ff71d11
+P af44ddeea110576bf9c475b5e6e3540ee50c5edf
-R a6a2c4ff901213b63bfaa0048bce9198
+R afb470c685b393383d09d5ee609f260e
 U drh
-Z c9eae4290234a644b3110522f8908fc1
+Z 341c14103181636b02bfc0ae91fe7a33

manifest.uuid

@@ -1 +1 @@
-af44ddeea110576bf9c475b5e6e3540ee50c5edf
+fa82becae7e41c47a6387061932f692c6f9f472e

src/btree.c

@@ -9,7 +9,7 @@
 **    May you share freely, never taking more than you give.
 **
 *************************************************************************
-** $Id: btree.c,v 1.187 2004/09/03 23:32:19 drh Exp $
+** $Id: btree.c,v 1.188 2004/09/05 00:33:43 drh Exp $
 **
 ** This file implements a external (disk-based) database using BTrees.
 ** For a detailed discussion of BTrees, refer to
@@ -1145,7 +1145,7 @@ int sqlite3BtreeSetPageSize(Btree *pBt, int pageSize, int nReserve){
   if( nReserve<0 ){
     nReserve = pBt->pageSize - pBt->usableSize;
   }
-  if( pageSize>512 && pageSize<SQLITE_MAX_PAGE_SIZE ){
+  if( pageSize>=512 && pageSize<=SQLITE_MAX_PAGE_SIZE ){
     pBt->pageSize = pageSize;
     sqlite3pager_set_pagesize(pBt->pPager, pageSize);
   }
@@ -1225,7 +1225,6 @@ static int lockBtree(Btree *pBt){
   }
   assert( pBt->maxLeaf + 23 <= MX_CELL_SIZE(pBt) );
   pBt->pPage1 = pPage1;
-  pBt->pageSizeFixed = 1;
   return SQLITE_OK;
 
 page1_init_failed:
@@ -1283,6 +1282,7 @@ static int newDatabase(Btree *pBt){
   data[23] = pBt->minLeafFrac;
   memset(&data[24], 0, 100-24);
   zeroPage(pP1, PTF_INTKEY|PTF_LEAF|PTF_LEAFDATA );
+  pBt->pageSizeFixed = 1;
   return SQLITE_OK;
 }
 

src/vacuum.c

@@ -14,7 +14,7 @@
 ** Most of the code in this file may be omitted by defining the
 ** SQLITE_OMIT_VACUUM macro.
 **
-** $Id: vacuum.c,v 1.29 2004/09/02 15:27:42 drh Exp $
+** $Id: vacuum.c,v 1.30 2004/09/05 00:33:43 drh Exp $
 */
 #include "sqliteInt.h"
 #include "os.h"
@@ -98,6 +98,7 @@ int sqlite3RunVacuum(char **pzErrMsg, sqlite *db){
   int nFilename;          /* number of characters  in zFilename[] */
   char *zTemp = 0;        /* a temporary file in same directory as zFilename */
   int i;                  /* Loop counter */
+  Btree *pMain;           /* The database being vacuumed */
   Btree *pTemp;
   char *zSql = 0;
 
@@ -111,7 +112,8 @@ int sqlite3RunVacuum(char **pzErrMsg, sqlite *db){
   /* Get the full pathname of the database file and create a
   ** temporary filename in the same directory as the original file.
   */
-  zFilename = sqlite3BtreeGetFilename(db->aDb[0].pBt);
+  pMain = db->aDb[0].pBt;
+  zFilename = sqlite3BtreeGetFilename(pMain);
   assert( zFilename );
   if( zFilename[0]=='\0' ){
     /* The in-memory database. Do nothing. Return directly to avoid causing
@@ -150,7 +152,11 @@ int sqlite3RunVacuum(char **pzErrMsg, sqlite *db){
   sqliteFree(zSql);
   zSql = 0;
   if( rc!=SQLITE_OK ) goto end_of_vacuum;
-  execSql(db, "PRAGMA vacuum_db.synchronous = off;");
+  assert( strcmp(db->aDb[db->nDb-1].zName,"vacuum_db")==0 );
+  pTemp = db->aDb[db->nDb-1].pBt;
+  sqlite3BtreeSetPageSize(pTemp, sqlite3BtreeGetPageSize(pMain), 0);
+  assert( sqlite3BtreeGetPageSize(pTemp)==sqlite3BtreeGetPageSize(pMain) );
+  execSql(db, "PRAGMA vacuum_db.synchronous=OFF");
 
   /* Begin a transaction */
   rc = execSql(db, "BEGIN;");
@@ -206,9 +212,7 @@ int sqlite3RunVacuum(char **pzErrMsg, sqlite *db){
   ** opened for writing. This way, the SQL transaction used to create the
   ** temporary database never needs to be committed.
   */
-  pTemp = db->aDb[db->nDb-1].pBt;
   if( sqlite3BtreeIsInTrans(pTemp) ){
-    Btree *pMain = db->aDb[0].pBt;
     u32 meta;
 
     assert( 0==sqlite3BtreeIsInTrans(pMain) );

test/pagesize.test

@@ -11,7 +11,7 @@
 # This file implements regression tests for SQLite library.
 # This file implements tests for the page_size PRAGMA.
 #
-# $Id: pagesize.test,v 1.2 2004/09/02 15:49:08 drh Exp $
+# $Id: pagesize.test,v 1.3 2004/09/05 00:33:44 drh Exp $
 
 
 set testdir [file dirname $argv0]
@@ -30,27 +30,131 @@ do_test pagesize-1.3 {
     PRAGMA page_size;
   }
 } 1024
+
 do_test pagesize-1.4 {
   db close
   file delete -force test.db
   sqlite3 db test.db
   execsql {
-    PRAGMA page_size=2048;
+    PRAGMA page_size=511;
-    CREATE TABLE t1(a);
     PRAGMA page_size;
   }
-} 2048
+} 1024
 do_test pagesize-1.5 {
-  db close
-  sqlite3 db test.db
   execsql {
-    PRAGMA page_size
+    PRAGMA page_size=512;
+    PRAGMA page_size;
   }
-} 2048
+} 512
 do_test pagesize-1.6 {
-  file size test.db
+  execsql {
-} 4096
+    PRAGMA page_size=8192;
+    PRAGMA page_size;
+  }
+} 8192
+do_test pagesize-1.7 {
+  execsql {
+    PRAGMA page_size=65537;
+    PRAGMA page_size;
+  }
+} 8192
+  
 
 
+foreach PGSZ {512 2000 2048 3000 4096} {
+  do_test pagesize-2.$PGSZ.1 {
+    db close
+    file delete -force test.db
+    sqlite3 db test.db
+    execsql "PRAGMA page_size=$PGSZ"
+    execsql {
+      CREATE TABLE t1(x);
+      PRAGMA page_size;
+    }
+  } $PGSZ
+  do_test pagesize-2.$PGSZ.2 {
+    db close
+    sqlite3 db test.db
+    execsql {
+      PRAGMA page_size
+    }
+  } $PGSZ
+  do_test pagesize-2.$PGSZ.3 {
+    file size test.db
+  } [expr {$PGSZ*2}]
+  do_test pagesize-2.$PGSZ.4 {
+    execsql {VACUUM}
+  } {}
+  integrity_check pagesize-2.$PGSZ.5
+  do_test pagesize-2.$PGSZ.6 {
+    db close
+    sqlite3 db test.db
+    execsql {PRAGMA page_size}
+  } $PGSZ
+  do_test pagesize-2.$PGSZ.7 {
+    execsql {
+      INSERT INTO t1 VALUES(randstr(10,9000));
+      INSERT INTO t1 VALUES(randstr(10,9000));
+      INSERT INTO t1 VALUES(randstr(10,9000));
+      BEGIN;
+      INSERT INTO t1 SELECT x||x FROM t1;
+      INSERT INTO t1 SELECT x||x FROM t1;
+      INSERT INTO t1 SELECT x||x FROM t1;
+      INSERT INTO t1 SELECT x||x FROM t1;
+      SELECT count(*) FROM t1;
+    }
+  } 48
+  do_test pagesize-2.$PGSZ.8 {
+    execsql {
+      ROLLBACK;
+      SELECT count(*) FROM t1;
+    }
+  } 3
+  integrity_check pagesize-2.$PGSZ.9
+  do_test pagesize-2.$PGSZ.10 {
+    db close
+    sqlite3 db test.db
+    execsql {PRAGMA page_size}
+  } $PGSZ
+  do_test pagesize-2.$PGSZ.11 {
+    execsql {
+      INSERT INTO t1 SELECT x||x FROM t1;
+      INSERT INTO t1 SELECT x||x FROM t1;
+      INSERT INTO t1 SELECT x||x FROM t1;
+      INSERT INTO t1 SELECT x||x FROM t1;
+      INSERT INTO t1 SELECT x||x FROM t1;
+      INSERT INTO t1 SELECT x||x FROM t1;
+      SELECT count(*) FROM t1;
+    }
+  } 192
+  do_test pagesize-2.$PGSZ.12 {
+    execsql {
+      BEGIN;
+      DELETE FROM t1 WHERE rowid%5!=0;
+      SELECT count(*) FROM t1;
+    }
+  } 38
+  do_test pagesize-2.$PGSZ.13 {
+    execsql {
+      ROLLBACK;
+      SELECT count(*) FROM t1;
+    }
+  } 192
+  integrity_check pagesize-2.$PGSZ.14
+  do_test pagesize-2.$PGSZ.15 {
+    execsql {
+      DELETE FROM t1 WHERE rowid%5!=0;
+      VACUUM;
+      SELECT count(*) FROM t1;
+    }
+  } 38
+  do_test pagesize-2.$PGSZ.16 {
+    execsql {
+      DROP TABLE t1;
+      VACUUM;
+    }
+  } {}
+  integrity_check pagesize-2.$PGSZ.17
+}
 
 finish_test