From: drh <drh@noemail.net>
Date: Fri, 24 Mar 2017 15:09:47 +0000 (+0000)
Subject: Merge all recent enhancements from trunk.
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=4d55d35df6419a0119ac38a4ed44a87b9970c0e4;p=thirdparty%2Fsqlite.git

Merge all recent enhancements from trunk.

FossilOrigin-Name: fd5676fe7f55b3d4fa15ca119af7c064c6f9d053affdfd5e748785e300affbeb
---

4d55d35df6419a0119ac38a4ed44a87b9970c0e4
diff --cc ext/session/sqlite3changebatch.c
index 0490d5f977,0000000000..926a7d7785
mode 100644,000000..100644
--- a/ext/session/sqlite3changebatch.c
+++ b/ext/session/sqlite3changebatch.c
@@@ -1,486 -1,0 +1,485 @@@
 +
 +#if !defined(SQLITE_TEST) || (defined(SQLITE_ENABLE_SESSION) && defined(SQLITE_ENABLE_PREUPDATE_HOOK))
 +
 +#include "sqlite3session.h"
 +#include "sqlite3changebatch.h"
 +
 +#include <assert.h>
 +#include <string.h>
 +
 +typedef struct BatchTable BatchTable;
 +typedef struct BatchIndex BatchIndex;
 +typedef struct BatchIndexEntry BatchIndexEntry;
 +typedef struct BatchHash BatchHash;
 +
 +struct sqlite3_changebatch {
 +  sqlite3 *db;                    /* Database handle used to read schema */
 +  BatchTable *pTab;               /* First in linked list of tables */
 +  int iChangesetId;               /* Current changeset id */
 +  int iNextIdxId;                 /* Next available index id */
 +  int nEntry;                     /* Number of entries in hash table */
 +  int nHash;                      /* Number of hash buckets */
 +  BatchIndexEntry **apHash;       /* Array of hash buckets */
 +};
 +
 +struct BatchTable {
 +  BatchIndex *pIdx;               /* First in linked list of UNIQUE indexes */
 +  BatchTable *pNext;              /* Next table */
 +  char zTab[1];                   /* Table name */
 +};
 +
 +struct BatchIndex {
 +  BatchIndex *pNext;              /* Next index on same table */
 +  int iId;                        /* Index id (assigned internally) */
 +  int bPk;                        /* True for PK index */
 +  int nCol;                       /* Size of aiCol[] array */
 +  int *aiCol;                     /* Array of columns that make up index */
 +};
 +
 +struct BatchIndexEntry {
 +  BatchIndexEntry *pNext;         /* Next colliding hash table entry */
 +  int iChangesetId;               /* Id of associated changeset */
 +  int iIdxId;                     /* Id of index this key is from */
 +  int szRecord;
 +  char aRecord[1];
 +};
 +
 +/*
 +** Allocate and zero a block of nByte bytes. Must be freed using cbFree().
 +*/
 +static void *cbMalloc(int *pRc, int nByte){
 +  void *pRet;
 +
 +  if( *pRc ){
 +    pRet = 0;
 +  }else{
 +    pRet = sqlite3_malloc(nByte);
 +    if( pRet ){
 +      memset(pRet, 0, nByte);
 +    }else{
 +      *pRc = SQLITE_NOMEM;
 +    }
 +  }
 +
 +  return pRet;
 +}
 +
 +/*
 +** Free an allocation made by cbMalloc().
 +*/
 +static void cbFree(void *p){
 +  sqlite3_free(p);
 +}
 +
 +/*
 +** Return the hash bucket that pEntry belongs in.
 +*/
 +static int cbHash(sqlite3_changebatch *p, BatchIndexEntry *pEntry){
 +  unsigned int iHash = (unsigned int)pEntry->iIdxId;
 +  unsigned char *pEnd = (unsigned char*)&pEntry->aRecord[pEntry->szRecord];
 +  unsigned char *pIter;
 +
 +  for(pIter=(unsigned char*)pEntry->aRecord; pIter<pEnd; pIter++){
 +    iHash += (iHash << 7) + *pIter;
 +  }
 +
 +  return (int)(iHash % p->nHash);
 +}
 +
 +/*
 +** Resize the hash table.
 +*/
 +static int cbHashResize(sqlite3_changebatch *p){
 +  int rc = SQLITE_OK;
 +  BatchIndexEntry **apNew;
 +  int nNew = (p->nHash ? p->nHash*2 : 512);
 +  int i;
 +
 +  apNew = cbMalloc(&rc, sizeof(BatchIndexEntry*) * nNew);
 +  if( rc==SQLITE_OK ){
 +    int nHash = p->nHash;
 +    p->nHash = nNew;
 +    for(i=0; i<nHash; i++){
 +      BatchIndexEntry *pEntry;
 +      while( (pEntry=p->apHash[i])!=0 ){
 +        int iHash = cbHash(p, pEntry);
 +        p->apHash[i] = pEntry->pNext;
 +        pEntry->pNext = apNew[iHash];
 +        apNew[iHash] = pEntry;
 +      }
 +    }
 +
 +    cbFree(p->apHash);
 +    p->apHash = apNew;
 +  }
 +
 +  return rc;
 +}
 +
 +
 +/*
 +** Allocate a new sqlite3_changebatch object.
 +*/
 +int sqlite3changebatch_new(sqlite3 *db, sqlite3_changebatch **pp){
 +  sqlite3_changebatch *pRet;
 +  int rc = SQLITE_OK;
 +  *pp = pRet = (sqlite3_changebatch*)cbMalloc(&rc, sizeof(sqlite3_changebatch));
 +  if( pRet ){
 +    pRet->db = db;
 +  }
 +  return rc;
 +}
 +
 +/*
 +** Add a BatchIndex entry for index zIdx to table pTab.
 +*/
 +static int cbAddIndex(
 +  sqlite3_changebatch *p, 
 +  BatchTable *pTab, 
 +  const char *zIdx, 
 +  int bPk
 +){
 +  int nCol = 0;
 +  sqlite3_stmt *pIndexInfo = 0;
 +  BatchIndex *pNew = 0;
 +  int rc;
 +  char *zIndexInfo;
 +
 +  zIndexInfo = (char*)sqlite3_mprintf("PRAGMA main.index_info = %Q", zIdx);
 +  if( zIndexInfo ){
 +    rc = sqlite3_prepare_v2(p->db, zIndexInfo, -1, &pIndexInfo, 0);
 +    sqlite3_free(zIndexInfo);
 +  }else{
 +    rc = SQLITE_NOMEM;
 +  }
 +
 +  if( rc==SQLITE_OK ){
 +    while( SQLITE_ROW==sqlite3_step(pIndexInfo) ){ nCol++; }
 +    rc = sqlite3_reset(pIndexInfo);
 +  }
 +
 +  pNew = (BatchIndex*)cbMalloc(&rc, sizeof(BatchIndex) + sizeof(int) * nCol);
 +  if( rc==SQLITE_OK ){
-     int rc2;
 +    pNew->nCol = nCol;
 +    pNew->bPk = bPk;
 +    pNew->aiCol = (int*)&pNew[1];
 +    pNew->iId = p->iNextIdxId++;
 +    while( SQLITE_ROW==sqlite3_step(pIndexInfo) ){ 
 +      int i = sqlite3_column_int(pIndexInfo, 0);
 +      int j = sqlite3_column_int(pIndexInfo, 1);
 +      pNew->aiCol[i] = j;
 +    }
 +    rc = sqlite3_reset(pIndexInfo);
 +  }
 +
 +  if( rc==SQLITE_OK ){
 +    pNew->pNext = pTab->pIdx;
 +    pTab->pIdx = pNew;
 +  }else{
 +    cbFree(pNew);
 +  }
 +  sqlite3_finalize(pIndexInfo);
 +
 +  return rc;
 +}
 +
 +/*
 +** Free the object passed as the first argument.
 +*/
 +static void cbFreeTable(BatchTable *pTab){
 +  BatchIndex *pIdx;
 +  BatchIndex *pIdxNext;
 +  for(pIdx=pTab->pIdx; pIdx; pIdx=pIdxNext){
 +    pIdxNext = pIdx->pNext;
 +    cbFree(pIdx);
 +  }
 +  cbFree(pTab);
 +}
 +
 +/*
 +** Find or create the BatchTable object named zTab.
 +*/
 +static int cbFindTable(
 +  sqlite3_changebatch *p, 
 +  const char *zTab, 
 +  BatchTable **ppTab
 +){
 +  BatchTable *pRet = 0;
 +  int rc = SQLITE_OK;
 +
 +  for(pRet=p->pTab; pRet; pRet=pRet->pNext){
 +    if( 0==sqlite3_stricmp(zTab, pRet->zTab) ) break;
 +  }
 +
 +  if( pRet==0 ){
 +    int nTab = strlen(zTab);
 +    pRet = (BatchTable*)cbMalloc(&rc, nTab + sizeof(BatchTable));
 +    if( pRet ){
 +      sqlite3_stmt *pIndexList = 0;
 +      char *zIndexList = 0;
 +      int rc2;
 +      memcpy(pRet->zTab, zTab, nTab);
 +
 +      zIndexList = sqlite3_mprintf("PRAGMA main.index_list = %Q", zTab);
 +      if( zIndexList==0 ){
 +        rc = SQLITE_NOMEM;
 +      }else{
 +        rc = sqlite3_prepare_v2(p->db, zIndexList, -1, &pIndexList, 0);
 +        sqlite3_free(zIndexList);
 +      }
 +
 +      while( rc==SQLITE_OK && SQLITE_ROW==sqlite3_step(pIndexList) ){
 +        if( sqlite3_column_int(pIndexList, 2) ){
 +          const char *zIdx = (const char*)sqlite3_column_text(pIndexList, 1);
 +          const char *zTyp = (const char*)sqlite3_column_text(pIndexList, 3);
 +          rc = cbAddIndex(p, pRet, zIdx, (zTyp[0]=='p'));
 +        }
 +      }
 +      rc2 = sqlite3_finalize(pIndexList);
 +      if( rc==SQLITE_OK ) rc = rc2;
 +
 +      if( rc==SQLITE_OK ){
 +        pRet->pNext = p->pTab;
 +        p->pTab = pRet;
 +      }else{
 +        cbFreeTable(pRet);
 +        pRet = 0;
 +      }
 +    }
 +  }
 +
 +  *ppTab = pRet;
 +  return rc;
 +}
 +
 +/*
 +** Extract value iVal from the changeset iterator passed as the first
 +** argument. Set *ppVal to point to the value before returning.
 +**
 +** This function attempts to extract the value using function xVal
 +** (which is always either sqlite3changeset_new or sqlite3changeset_old).
 +** If the call returns SQLITE_OK but does not supply an sqlite3_value*
 +** pointer, an attempt to extract the value is made using the xFallback 
 +** function.
 +*/
 +static int cbGetChangesetValue(
 +  sqlite3_changeset_iter *pIter, 
 +  int (*xVal)(sqlite3_changeset_iter*,int,sqlite3_value**),
 +  int (*xFallback)(sqlite3_changeset_iter*,int,sqlite3_value**),
 +  int iVal,
 +  sqlite3_value **ppVal
 +){
 +  int rc = xVal(pIter, iVal, ppVal);
 +  if( rc==SQLITE_OK && *ppVal==0 && xFallback ){
 +    rc = xFallback(pIter, iVal, ppVal);
 +  }
 +  return rc;
 +}
 +
 +static int cbAddToHash(
 +  sqlite3_changebatch *p, 
 +  sqlite3_changeset_iter *pIter, 
 +  BatchIndex *pIdx, 
 +  int (*xVal)(sqlite3_changeset_iter*,int,sqlite3_value**),
 +  int (*xFallback)(sqlite3_changeset_iter*,int,sqlite3_value**),
 +  int *pbConf
 +){
 +  BatchIndexEntry *pNew;
 +  int sz = pIdx->nCol;
 +  int i;
 +  int iOut = 0;
 +  int rc = SQLITE_OK;
 +
 +  for(i=0; rc==SQLITE_OK && i<pIdx->nCol; i++){
 +    sqlite3_value *pVal;
 +    rc = cbGetChangesetValue(pIter, xVal, xFallback, pIdx->aiCol[i], &pVal);
 +    if( rc==SQLITE_OK ){
 +      int eType = 0;
 +      if( pVal ) eType = sqlite3_value_type(pVal);
 +      switch( eType ){
 +        case 0:
 +        case SQLITE_NULL:
 +          return SQLITE_OK;
 +
 +        case SQLITE_INTEGER:
 +          sz += 8;
 +          break;
 +        case SQLITE_FLOAT:
 +          sz += 8;
 +          break;
 +
 +        default:
 +          assert( eType==SQLITE_TEXT || eType==SQLITE_BLOB );
 +          sz += sqlite3_value_bytes(pVal);
 +          break;
 +      }
 +    }
 +  }
 +
 +  pNew = cbMalloc(&rc, sizeof(BatchIndexEntry) + sz);
 +  if( pNew ){
 +    pNew->iChangesetId = p->iChangesetId;
 +    pNew->iIdxId = pIdx->iId;
 +    pNew->szRecord = sz;
 +
 +    for(i=0; i<pIdx->nCol; i++){
 +      int eType;
 +      sqlite3_value *pVal;
 +      rc = cbGetChangesetValue(pIter, xVal, xFallback, pIdx->aiCol[i], &pVal);
 +      if( rc!=SQLITE_OK ) break;  /* coverage: condition is never true */
 +      eType = sqlite3_value_type(pVal);
 +      pNew->aRecord[iOut++] = eType;
 +      switch( eType ){
 +        case SQLITE_INTEGER: {
 +          sqlite3_int64 i64 = sqlite3_value_int64(pVal);
 +          memcpy(&pNew->aRecord[iOut], &i64, 8);
 +          iOut += 8;
 +          break;
 +        }
 +        case SQLITE_FLOAT: {
 +          double d64 = sqlite3_value_double(pVal);
 +          memcpy(&pNew->aRecord[iOut], &d64, sizeof(double));
 +          iOut += sizeof(double);
 +          break;
 +        }
 +
 +        default: {
 +          int nByte = sqlite3_value_bytes(pVal);
 +          const char *z = (const char*)sqlite3_value_blob(pVal);
 +          memcpy(&pNew->aRecord[iOut], z, nByte);
 +          iOut += nByte;
 +          break;
 +        }
 +      }
 +    }
 +  }
 +
 +  if( rc==SQLITE_OK && p->nEntry>=(p->nHash/2) ){
 +    rc = cbHashResize(p);
 +  }
 +
 +  if( rc==SQLITE_OK ){
 +    BatchIndexEntry *pIter;
 +    int iHash = cbHash(p, pNew);
 +
 +    assert( iHash>=0 && iHash<p->nHash );
 +    for(pIter=p->apHash[iHash]; pIter; pIter=pIter->pNext){
 +      if( pNew->szRecord==pIter->szRecord 
 +       && 0==memcmp(pNew->aRecord, pIter->aRecord, pNew->szRecord)
 +      ){
 +        if( pNew->iChangesetId!=pIter->iChangesetId ){
 +          *pbConf = 1;
 +        }
 +        cbFree(pNew);
 +        pNew = 0;
 +        break;
 +      }
 +    }
 +
 +    if( pNew ){
 +      pNew->pNext = p->apHash[iHash];
 +      p->apHash[iHash] = pNew;
 +      p->nEntry++;
 +    }
 +  }else{
 +    cbFree(pNew);
 +  }
 +
 +  return rc;
 +}
 +
 +
 +/*
 +** Add a changeset to the current batch.
 +*/
 +int sqlite3changebatch_add(sqlite3_changebatch *p, void *pBuf, int nBuf){
 +  sqlite3_changeset_iter *pIter;  /* Iterator opened on pBuf/nBuf */
 +  int rc;                         /* Return code */
 +  int bConf = 0;                  /* Conflict was detected */
 +
 +  rc = sqlite3changeset_start(&pIter, nBuf, pBuf);
 +  if( rc==SQLITE_OK ){
 +    int rc2;
 +    for(rc2 = sqlite3changeset_next(pIter);
 +        rc2==SQLITE_ROW;
 +        rc2 = sqlite3changeset_next(pIter)
 +    ){
 +      BatchTable *pTab;
 +      BatchIndex *pIdx;
 +      const char *zTab;           /* Table this change applies to */
 +      int nCol;                   /* Number of columns in table */
 +      int op;                     /* UPDATE, INSERT or DELETE */
 +
 +      sqlite3changeset_op(pIter, &zTab, &nCol, &op, 0);
 +      assert( op==SQLITE_INSERT || op==SQLITE_UPDATE || op==SQLITE_DELETE );
 +
 +      rc = cbFindTable(p, zTab, &pTab);
 +      assert( pTab || rc!=SQLITE_OK );
 +      if( pTab ){
 +        for(pIdx=pTab->pIdx; pIdx && rc==SQLITE_OK; pIdx=pIdx->pNext){
 +          if( op==SQLITE_UPDATE && pIdx->bPk ) continue;
 +          if( op==SQLITE_UPDATE || op==SQLITE_DELETE ){
 +            rc = cbAddToHash(p, pIter, pIdx, sqlite3changeset_old, 0, &bConf);
 +          }
 +          if( op==SQLITE_UPDATE || op==SQLITE_INSERT ){
 +            rc = cbAddToHash(p, pIter, pIdx, 
 +                sqlite3changeset_new, sqlite3changeset_old, &bConf
 +            );
 +          }
 +        }
 +      }
 +      if( rc!=SQLITE_OK ) break;
 +    }
 +
 +    rc2 = sqlite3changeset_finalize(pIter);
 +    if( rc==SQLITE_OK ) rc = rc2;
 +  }
 +
 +  if( rc==SQLITE_OK && bConf ){
 +    rc = SQLITE_CONSTRAINT;
 +  }
 +  p->iChangesetId++;
 +  return rc;
 +}
 +
 +/*
 +** Zero an existing changebatch object.
 +*/
 +void sqlite3changebatch_zero(sqlite3_changebatch *p){
 +  int i;
 +  for(i=0; i<p->nHash; i++){
 +    BatchIndexEntry *pEntry;
 +    BatchIndexEntry *pNext;
 +    for(pEntry=p->apHash[i]; pEntry; pEntry=pNext){
 +      pNext = pEntry->pNext;
 +      cbFree(pEntry);
 +    }
 +  }
 +  cbFree(p->apHash);
 +  p->nHash = 0;
 +  p->apHash = 0;
 +}
 +
 +/*
 +** Delete a changebatch object.
 +*/
 +void sqlite3changebatch_delete(sqlite3_changebatch *p){
 +  BatchTable *pTab;
 +  BatchTable *pTabNext;
 +
 +  sqlite3changebatch_zero(p);
 +  for(pTab=p->pTab; pTab; pTab=pTabNext){
 +    pTabNext = pTab->pNext;
 +    cbFreeTable(pTab);
 +  }
 +  cbFree(p);
 +}
 +
 +/*
 +** Return the db handle.
 +*/
 +sqlite3 *sqlite3changebatch_db(sqlite3_changebatch *p){
 +  return p->db;
 +}
 +
 +#endif /* SQLITE_ENABLE_SESSION && SQLITE_ENABLE_PREUPDATE_HOOK */
diff --cc manifest
index 4359ecc0b2,cfdc624046..6cdd069a22
--- a/manifest
+++ b/manifest
@@@ -1,10 -1,10 +1,10 @@@
- C Merge\sthe\s"changebatch"\sfunctionality\sinto\sthis\sbranch.
- D 2017-01-09T07:00:41.373
- F Makefile.in 41bd4cad981487345c4a84081074bcdb876e4b2e
 -C Add\sthe\sRFC-7396\sAppendix\sA\stest\scases\sfor\sjson_patch().
 -D 2017-03-24T13:31:47.314
++C Merge\sall\srecent\senhancements\sfrom\strunk.
++D 2017-03-24T15:09:47.005
+ F Makefile.in 1cc758ce3374a32425e4d130c2fe7b026b20de5b8843243de75f087c0a2661fb
  F Makefile.linux-gcc 7bc79876b875010e8c8f9502eb935ca92aa3c434
- F Makefile.msc b8ca53350ae545e3562403d5da2a69cec79308da
- F README.md 8ecc12493ff9f820cdea6520a9016001cb2e59b7
- F VERSION cddd8d88dc8202afa0ebc96da61fc4acbd1e96a5
+ F Makefile.msc 1faf9f06aadc9284c212dea7bbc7c0dea7e8337f0287c81001eff500912c790a
+ F README.md 2b15fae33852f2f53996774c21fb41e1d94181c4401a0e43ac93e11f2cc901b9
+ F VERSION 3605fa447e4623f5ff4a6adc97b1fde9a257b8f2
  F aclocal.m4 a5c22d164aff7ed549d53a90fa56d56955281f50
  F art/sqlite370.eps aa97a671332b432a54e1d74ff5e8775be34200c2
  F art/sqlite370.ico af56c1d00fee7cd4753e8631ed60703ed0fc6e90
@@@ -36,7 -36,7 +36,7 @@@ F contrib/sqlitecon.tcl 210a913ad63f9f9
  F doc/lemon.html b5a3c07d33ecb8e019ce8f7660fe2dbbad9d7977
  F doc/pager-invariants.txt 27fed9a70ddad2088750c4a2b493b63853da2710
  F doc/vfs-shm.txt e101f27ea02a8387ce46a05be2b1a902a021d37a
- F ext/README.txt 913a7bd3f4837ab14d7e063304181787658b14e1
 -F ext/README.md fd5f78013b0a2bc6f0067afb19e6ad040e89a10179b4f6f03eee58fac5f169bd
++F ext/README.md fd5f78013b0a2bc6f0067afb19e6ad040e89a10179b4f6f03eee58fac5f169bd w ext/README.txt
  F ext/async/README.txt e12275968f6fde133a80e04387d0e839b0c51f91
  F ext/async/sqlite3async.c 0f3070cc3f5ede78f2b9361fb3b629ce200d7d74
  F ext/async/sqlite3async.h f489b080af7e72aec0e1ee6f1d98ab6cf2e4dcef
@@@ -284,12 -294,10 +294,12 @@@ F ext/rtree/rtree_util.tcl 06aab2ed5b82
  F ext/rtree/sqlite3rtree.h 9c5777af3d2921c7b4ae4954e8e5697502289d28
  F ext/rtree/tkt3363.test 142ab96eded44a3615ec79fba98c7bde7d0f96de
  F ext/rtree/viewrtree.tcl eea6224b3553599ae665b239bd827e182b466024
 +F ext/session/changebatch1.test 9ceaa8f7b2a505933e250fbe6cbc550e4ce1e59d
 +F ext/session/changebatchfault.test be49c793219bf387ad692a60856b921f0854ad6d
  F ext/session/changeset.c 4ccbaa4531944c24584bf6a61ba3a39c62b6267a
- F ext/session/session1.test e5125b216d1e8c91e0984b361b0b68529e7c5dfb
+ F ext/session/session1.test c8a50e0e8581dc1a00e832aa59bb61f180404d44
  F ext/session/session2.test 284de45abae4cc1082bc52012ee81521d5ac58e0
- F ext/session/session3.test a7a9ce59b8d1e49e2cc23d81421ac485be0eea01
+ F ext/session/session3.test ce9ce3dfa489473987f899e9f6a0f2db9bde3479
  F ext/session/session4.test 457b02bdc349eb01151e54de014df77abd3c08c8
  F ext/session/session5.test 716bc6fafd625ce60dfa62ae128971628c1a1169
  F ext/session/session6.test 443789bc2fca12e4f7075cf692c60b8a2bea1a26
@@@ -302,21 -310,22 +312,24 @@@ F ext/session/sessionD.test d4744c78334
  F ext/session/sessionE.test e60a238c47f0feb3bb707e7f35e22be09c7e8f26
  F ext/session/sessionF.test c2f178d4dfd723a5fd94a730ea2ccb44c669e3ce
  F ext/session/sessionG.test 01ef705096a9d3984eebdcca79807a211dee1b60
- F ext/session/session_common.tcl 9b696a341cf1d3744823715ed92bb19749b6c3d4
+ F ext/session/session_common.tcl 7776eda579773113b30c7abfd4545c445228cb73
+ F ext/session/session_speed_test.c edc1f96fd5e0e4b16eb03e2a73041013d59e8723
+ F ext/session/sessionat.test b25d61d663ebc795506bf74079dc4ba0092fad25
  F ext/session/sessionfault.test da273f2712b6411e85e71465a1733b8501dbf6f7
  F ext/session/sessionfault2.test 04aa0bc9aa70ea43d8de82c4f648db4de1e990b0
- F ext/session/sqlite3changebatch.c 96011bdf72ac12ebf707f4d0f0e719e333631605
+ F ext/session/sessionwor.test 2f3744236dc8b170a695b7d8ddc8c743c7e79fdc
 -F ext/session/sqlite3session.c 13642d9c754cc18f17e141f82860d269e2adf920
 -F ext/session/sqlite3session.h d4db650adfcc7a4360e9f12a09c2d117b1db6b53
 -F ext/session/test_session.c eb0bd6c1ea791c1d66ee4ef94c16500dad936386
++F ext/session/sqlite3changebatch.c d5553b79e012ee2cb06c0a96bdf9dfe19e66354390ea0036cc46c4953142d517
 +F ext/session/sqlite3changebatch.h e72016998c9a22d439ddfd547b69e1ebac810c24
- F ext/session/sqlite3session.c 143d2a1547e760cd2653d1c7bf30acfb668de04f
- F ext/session/sqlite3session.h 30b9ba3c5906d711b4e5b2e532d7a1f419942a29
++F ext/session/sqlite3session.c 459b276e12065e34036f19cdc72528ac49f2d9977d0a142b9ef9b38122fe7ec0
++F ext/session/sqlite3session.h ec4463a01e6e1c942f618f8944ceb96f05f5fec06f8de9af6f269fc216df1c68
 +F ext/session/test_session.c badd5da3cb561564b093745f7d843430d1d76347
- F ext/userauth/sqlite3userauth.h 19cb6f0e31316d0ee4afdfb7a85ef9da3333a220
+ F ext/userauth/sqlite3userauth.h 7f3ea8c4686db8e40b0a0e7a8e0b00fac13aa7a3
  F ext/userauth/user-auth.txt e6641021a9210364665fe625d067617d03f27b04
- F ext/userauth/userauth.c 5fa3bdb492f481bbc1709fc83c91ebd13460c69e
+ F ext/userauth/userauth.c 3410be31283abba70255d71fd24734e017a4497f
  F install-sh 9d4de14ab9fb0facae2f48780b874848cbf2f895 x
  F ltmain.sh 3ff0879076df340d2e23ae905484d8c15d5fdea8
  F magic.txt 8273bf49ba3b0c8559cb2774495390c31fd61c60
- F main.mk 87ee1e20124ca5cae5a5aa08608a0d8f63063eb8
 -F main.mk 9abb506e717887d57f754bae139b85c1a06d6f2ac25b589f3e792e310567f278
++F main.mk a8a58a3b44912e2ab0c6e52a94f8dd97282e4ce192b2f760f81adfa62ec51512
  F mkso.sh fd21c06b063bb16a5d25deea1752c2da6ac3ed83
  F mptest/config01.test 3c6adcbc50b991866855f1977ff172eb6d901271
  F mptest/config02.test 4415dfe36c48785f751e16e32c20b077c28ae504
@@@ -335,20 -344,20 +348,20 @@@ F src/auth.c 930b376a9c56998557367e6f7f
  F src/backup.c faf17e60b43233c214aae6a8179d24503a61e83b
  F src/bitvec.c 17ea48eff8ba979f1f5b04cc484c7bb2be632f33
  F src/btmutex.c 0e9ce2d56159b89b9bc8e197e023ee11e39ff8ca
- F src/btree.c 5e5bf5079aae45b91e71eb087f3eddd28deafafe
- F src/btree.h 9306cfe42eed20cf2d0e407172704f5193af26cc
- F src/btreeInt.h bade42398d4dcadd2263c6d17886e812e2471e87
- F src/build.c 58bd67d6648d6120592605768a7008fd52fb2656
 -F src/btree.c ae0e0397e6ad58465bbf932239ee7539ca22f257c97b16c9d0960a1f5de743a3
 -F src/btree.h bf64dfeeddeebdb775a5eba0098bbc00d073290d
 -F src/btreeInt.h cd55d39d9916270837a88c12e701047cba0729b0
 -F src/build.c 43f903c9082040ced2b421543cb0300c2973647d
++F src/btree.c a6be01292ef0d290dbb768943542a112c5425702fd606099241e2bd7502d6e30
++F src/btree.h d04766565d07aa84f1324f6092a912a34e98f8790d607842ae73a4e45c3047e1
++F src/btreeInt.h b2cdfe83b930ae61c83ff9adc36f1b0aeda53758ab5a0755de5a0aec2be2f3a1
++F src/build.c 3761b2cc63542368fdd39686180fb02574311ec9953195661d4926e1256fdf7a
  F src/callback.c 2e76147783386374bf01b227f752c81ec872d730
  F src/complete.c a3634ab1e687055cd002e11b8f43eb75c17da23e
- F src/ctime.c 9f2296a4e5d26ebf0e0d95a0af4628f1ea694e7a
- F src/date.c dc3f1391d9297f8c748132813aaffcb117090d6e
+ F src/ctime.c 47d91a25ad8f199a71a5b1b7b169d6dd0d6e98c5719eca801568798743d1161c
+ F src/date.c ee676e7694dfadbdd2fde1a258a71be8360ba5ae
  F src/dbstat.c 19ee7a4e89979d4df8e44cfac7a8f905ec89b77d
- F src/delete.c c8bc10d145c9666a34ae906250326fdaa8d58fa5
- F src/expr.c f06f41e5e5daca10fb090e70a2502dcc0dbc992b
+ F src/delete.c 0d9d5549d42e79ce4d82ff1db1e6c81e36d2f67c
+ F src/expr.c f12a581f342a6fd85d14c31e4fb84f16b3dd107f54d7728dddb62cebc79d7ce1
  F src/fault.c 460f3e55994363812d9d60844b2a6de88826e007
  F src/fkey.c 2e9aabe1aee76273aff8a84ee92c464e095400ae
- F src/func.c c67273e1ec08abbdcc14c189892a3ff6eeece86b
+ F src/func.c 9d52522cc8ae7f5cdadfe14594262f1618bc1f86083c4cd6da861b4cf5af6174
  F src/global.c 4a34512d82fc5aa13c802db06bcfff5e1d3de955
  F src/hash.c 63d0ee752a3b92d4695b2b1f5259c4621b2cfebd
  F src/hash.h ab34c5c54a9e9de2e790b24349ba5aab3dbb4fd4
@@@ -377,31 -386,31 +390,31 @@@ F src/os.h 8e976e59eb4ca1c0fca6d35ee803
  F src/os_common.h b2f4707a603e36811d9b1a13278bffd757857b85
  F src/os_setup.h 0dbaea40a7d36bf311613d31342e0b99e2536586
  F src/os_unix.c 30e2c43e4955db990e5b5a81e901f8aa74cc8820
- F src/os_win.c cf90abd4e50d9f56d2c20ce8e005aff55d7bd8e9
+ F src/os_win.c 2a6c73eef01c51a048cc4ddccd57f981afbec18a
  F src/os_win.h 7b073010f1451abe501be30d12f6bc599824944a
- F src/pager.c e5b8c9a975e0c208bc8886bf83b8780b6e578ac5
- F src/pager.h 0105583b49a9126b9d137f98ec57caefc64f51d4
- F src/parse.y bb387a078f2f7f78e5362479bfef4a05b9fd40b8
- F src/pcache.c 51070ec9b8251bbf9c6ea3d35fd96a458752929e
 -F src/pager.c ff1232b3088a39806035ecfac4fffeb22717d80b
 -F src/pager.h f2a99646c5533ffe11afa43e9e0bea74054e4efa
 -F src/parse.y 48b03113704ee8bd78ee6996d81de7fbee22e105
++F src/pager.c 98a32b803fee30beaebe24ecbbf06bb2f8bc727957c0e410944b4597cbe8e81e
++F src/pager.h 5e7b4e5afdcbdf558c211f27786672b3d2536003d0fb6c4888addb500c826e15
++F src/parse.y f48aeacb59e7f272b042872332af246a97847d234d17dfdacf719b8aa97f7236
+ F src/pcache.c 62835bed959e2914edd26afadfecce29ece0e870
  F src/pcache.h 2cedcd8407eb23017d92790b112186886e179490
  F src/pcache1.c e3967219b2a92b9edcb9324a4ba75009090d3953
- F src/pragma.c 0e7a7c6f1c6fd8ff50c0fff65b8bb80174bc49c5
- F src/pragma.h 61aa5389118594bebb28120a6720401aee34ce1a
+ F src/pragma.c 2b244434e76c7075edbcfd9e4d634899af0944ff01183b126d4671f7407c2368
+ F src/pragma.h c9c763958fec92b04125571472c9500b351c5f7f
  F src/prepare.c b1140c3d0cf59bc85ace00ce363153041b424b7a
- F src/printf.c ff10a9b9902cd2afe5f655f3013c6307d969b1fd
+ F src/printf.c 8757834f1b54dae512fb25eb1acc8e94a0d15dd2290b58f2563f65973265adb2
  F src/random.c 80f5d666f23feb3e6665a6ce04c7197212a88384
- F src/resolve.c bb070cf5f23611c44ab7e4788803684e385fc3fb
+ F src/resolve.c 3e518b962d932a997fae373366880fc028c75706
  F src/rowset.c 7b7e7e479212e65b723bf40128c7b36dc5afdfac
- F src/select.c 4437d9d5d56b6ffdedabf394c7fe3a07ff521ce9
- F src/shell.c 6095531aa900decdaa765e0f3993fba7153c92c1
- F src/sqlite.h.in 29bda4bee01248a5650567d7a22fac39bad1b542
+ F src/select.c 2496d0cc6368dabe7ad2e4c7f5ed3ad9aa3b4d11cd90f33fa1d1ef72493f43aa
+ F src/shell.c ce39c4bbbaa02484cb45141034fd363c3bac80a6aa22b0bb3cecea1c6a4c0979
+ F src/sqlite.h.in 723107d97f2345a7c103632169dc61366121c4ab65d75a7d83c6dc0e5bbe5ca4
  F src/sqlite3.rc 5121c9e10c3964d5755191c80dd1180c122fc3a8
  F src/sqlite3ext.h 8648034aa702469afb553231677306cc6492a1ae
- F src/sqliteInt.h 0081f4d95b49a1accc29e5c96cf35296d0f68098
- F src/sqliteLimit.h c0373387c287c8d0932510b5547ecde31b5da247
 -F src/sqliteInt.h df268ce1d04df042cf43b557d2309eb0b71e86c4
++F src/sqliteInt.h 33e415da02eea725392ed9a9bf00cac7a19fed0c1f75678e6b23a3aa0ba178e9
+ F src/sqliteLimit.h 1513bfb7b20378aa0041e7022d04acb73525de35b80b252f1b83fedb4de6a76b
  F src/status.c a9e66593dfb28a9e746cba7153f84d49c1ddc4b1
- F src/table.c 5226df15ab9179b9ed558d89575ea0ce37b03fc9
- F src/tclsqlite.c 205c66b9b81d97978a155caa3ef5be9c4de2b174
+ F src/table.c b46ad567748f24a326d9de40e5b9659f96ffff34
+ F src/tclsqlite.c 6c2151b6d8d98e183a04466d40df8889c0574d79
  F src/test1.c 8a98191a1da8e100f77cdb5cc716df67d405028d
  F src/test2.c 3efb99ab7f1fc8d154933e02ae1378bac9637da5
  F src/test3.c d03f5b5da9a2410b7a91c64b0d3306ed28ab6fee
@@@ -415,10 -424,10 +428,10 @@@ F src/test_async.c 195ab49da082053fdb0f
  F src/test_autoext.c 915d245e736652a219a907909bb6710f0d587871
  F src/test_backup.c bf5da90c9926df0a4b941f2d92825a01bbe090a0
  F src/test_bestindex.c d23f80d334c59662af69191854c76b8d3d0c8c96
- F src/test_blob.c 6a4c7920d1d9c6cc0f7aa50c89c4f80016aeda83
+ F src/test_blob.c f65ac717da2618691cf9dad094e6da0219dcd208
  F src/test_btree.c 8b2dc8b8848cf3a4db93f11578f075e82252a274
- F src/test_config.c f3b4459a0c65933783030fb4a05073571f8fa897
- F src/test_delete.c 8499d4d323f2ec8e28301deb3d6ddd8eef8b8139
 -F src/test_config.c edcba290248dc18736dd814c9b95863c6762e0b35753048d8cbe5bf65f7abfbb
++F src/test_config.c d3925a89099af6407929fe642adeb950b7e6150d738b4113b2a62ae3eb95a7cd
+ F src/test_delete.c af7eab5702f853fb1c62a5f7665e2234cf1ae17b
  F src/test_demovfs.c a0c3bdd45ed044115c2c9f7779e56eafff18741e
  F src/test_devsym.c 4e58dec2602d8e139ca08659f62a62450587cb58
  F src/test_fs.c e16cbe68d3b107e00a907c20a9a02629870eb69b
@@@ -448,37 -457,38 +461,38 @@@ F src/test_tclvar.c df9fe1213c2634687a9
  F src/test_thread.c 911d15fb14e19c0c542bdc8aabf981c2f10a4858
  F src/test_vfs.c f0186261a24de2671d080bcd8050732f0cb64f6e
  F src/test_vfstrace.c bab9594adc976cbe696ff3970728830b4c5ed698
- F src/test_windirent.c 600398db0198ca1c77ca183831bf456746b6f5c4
- F src/test_windirent.h 7edc57e2faa727026dbd5d010dd0e2e665d5aa01
+ F src/test_windirent.c 17f91f5f2aa1bb7328abb49414c363b5d2a9d3ff
+ F src/test_windirent.h 5d67483a55442e31e1bde0f4a230e6e932ad5906
  F src/test_wsd.c 41cadfd9d97fe8e3e4e44f61a4a8ccd6f7ca8fe9
  F src/threads.c 4ae07fa022a3dc7c5beb373cf744a85d3c5c6c3c
- F src/tokenize.c 5c2f516876fc27fbd7753913f032f49eb89e83b5
- F src/treeview.c 4e44ade3bfe59d82005039f72e09333ce2b4162c
+ F src/tokenize.c dc748c5afcb9e5beb3ef5651bc99a4622e30f6a1
+ F src/treeview.c 84d0ac737e1231702679f0289180021e19c5cc186ec413e8dcb704a887c76ec8
  F src/trigger.c c9f0810043b265724fdb1bdd466894f984dfc182
- F src/update.c 1da7c462110bffed442a42884cb0d528c1db46d8
+ F src/update.c 456d4a4656f8a03c2abc88a51b19172197400e58
  F src/utf.c 699001c79f28e48e9bcdf8a463da029ea660540c
- F src/util.c a88b0466fddf445ce752226d4698ca3faada620a
- F src/vacuum.c ebcf45799c7a82729a496ef5b65c5d3b2715ef8e
- F src/vdbe.c 0254dc5bfb4d00b5ccc359332eeef26eb66dc5ee
- F src/vdbe.h b0866e4191f096f1c987a84b042c3599bdf5423b
- F src/vdbeInt.h 281cb70332dc8b593b8c7afe776f3a2ba7d4255e
- F src/vdbeapi.c d6ebaa465f070eb1af8ba4e7b34583ece87bdd24
- F src/vdbeaux.c d1e423b8a659705cbad5a502a219fba22f306048
- F src/vdbeblob.c f4f98ea672b242f807c08c92c7faaa79e5091b65
+ F src/util.c ca8440ede81e155d15cff7c101654f60b55a9ae6
 -F src/vacuum.c 1fe4555cd8c9b263afb85b5b4ee3a4a4181ad569
 -F src/vdbe.c 89a12451405a17c6e8d39b5826acb6999f1283e4e43d2e83a7ac7c9a7094a86a
++F src/vacuum.c 8aa1db0b7052269890ac03089ed030eefa88480897915f727703ca74d0676380
++F src/vdbe.c 9a6b75f8265756bf49c776fa9f561b0c13a123064734e8237586e4c4c11897b6
+ F src/vdbe.h 59998ffd71d7caa8886bc78dafaf8caeccd4c13c
+ F src/vdbeInt.h 4e4b15b2e1330e1636e4e01974eab2b0b985092f
+ F src/vdbeapi.c 5b08d82592bcff4470601fe78aaabebd50837860
 -F src/vdbeaux.c ecd0468611925d218e1eb4b3f538907904b136f0e15e333291a232b521bfcef1
++F src/vdbeaux.c 0a2d70e76ffe87869d4280f23477994f747fb0fa21305f4f9afcbdce22e4bafd
+ F src/vdbeblob.c 359891617358deefc85bef7bcf787fa6b77facb9
  F src/vdbemem.c 3b5a9a5b375458d3e12a50ae1aaa41eeec2175fd
  F src/vdbesort.c eda25cb2d1727efca6f7862fea32b8aa33c0face
  F src/vdbetrace.c 41963d5376f0349842b5fc4aaaaacd7d9cdc0834
- F src/vtab.c c4bbe0f870f52036553f8098aee0703997f0577a
+ F src/vtab.c 007513c2ef52472fcdea6a741683d50662e82790
  F src/vxworks.h d2988f4e5a61a4dfe82c6524dd3d6e4f2ce3cdb9
 -F src/wal.c 40c543f0a2195d1b0dc88ef12142bea690009344
 -F src/wal.h 06b2a0b599cc0f53ea97f497cf8c6b758c999f71
 +F src/wal.c 2858e71b30d521c80949fa10ed6b116367865594
 +F src/wal.h 8659519a248ef0f33e575b20ab04211cebe1f430
- F src/walker.c 91a6df7435827e41cff6bb7df50ea00934ee78b0
- F src/where.c 6bbf9284f4f15a6fa48663d033870cc0d7f5ee66
- F src/whereInt.h 2bcc3d176e6091cb8f50a30b65c006e88a73614d
- F src/wherecode.c e04ac8f24c3ac8621df6c3be3ac8c7d4fa893745
- F src/whereexpr.c 87ecdf24beba4498e4380b31c4131febb0a6ceaa
+ F src/walker.c b71a992b413b3a022572eccf29ef4b4890223791
+ F src/where.c e815093e5ee039b6b4eb19b646d22deb1a3a523f
+ F src/whereInt.h 2d50c2b74a33be44cb68fdecee30b4d93552f1f4
+ F src/wherecode.c 677e95413c472c0b413023b6b69a47f40fce1b04
+ F src/whereexpr.c 130cdd1a43af71b19755270fb1224874cf55158c
  F test/8_3_names.test ebbb5cd36741350040fd28b432ceadf495be25b2
  F test/affinity2.test a6d901b436328bd67a79b41bb0ac2663918fe3bd
+ F test/affinity3.test 6a101af2fc945ce2912f6fe54dd646018551710d
  F test/aggerror.test a867e273ef9e3d7919f03ef4f0e8c0d2767944f2
  F test/aggnested.test b35b4cd69fc913f90d39a575e171e1116c3a4bb7
  F test/alias.test 4529fbc152f190268a15f9384a5651bbbabc9d87
@@@ -587,13 -597,9 +602,13 @@@ F test/collate7.test 8ec29d98f3ee4ccebc
  F test/collate8.test cd9b3d3f999b8520ffaa7cc1647061fc5bab1334
  F test/collate9.test 3adcc799229545940df2f25308dd1ad65869145a
  F test/collateA.test b8218ab90d1fa5c59dcf156efabb1b2599c580d6
- F test/collateB.test 8ec2accd2d7166c1eff0d2a39bc90262c6f89632
+ F test/collateB.test 1e68906951b846570f29f20102ed91d29e634854ee47454d725f2151ecac0b95
  F test/colmeta.test 2c765ea61ee37bc43bbe6d6047f89004e6508eb1
  F test/colname.test 08948a4809d22817e0e5de89c7c0a8bd90cb551b
 +F test/concfault.test 500f17c3fcfe7705114422bcc6ddd3c740001a43
 +F test/concurrent.test 634b6a88f1942f5d68cc89d4d5efa2b11ba7913c
 +F test/concurrent2.test 77d655c6af93e77803b5c926555a838bb21f922f
 +F test/concurrent3.test 0a5f7e3036d1eccf0782d7153ac21f5f222e9468
  F test/conflict.test 029faa2d81a0d1cafb5f88614beb663d972c01db
  F test/conflict2.test bb0b94cf7196c64a3cbd815c66d3ee98c2fecd9c
  F test/conflict3.test dec0634c0f31dec9a4b01c63063e939f0cd21b6b
@@@ -1464,10 -1478,10 +1487,10 @@@ F test/wordcount.c 06efb84b7c48a4973c2c
  F test/zeroblob.test 3857870fe681b8185654414a9bccfde80b62a0fa
  F test/zerodamage.test e59a56443d6298ecf7435f618f0b27654f0c849e
  F tool/GetFile.cs a15e08acb5dd7539b75ba23501581d7c2b462cb5
- F tool/GetTclKit.bat f94784e3bdc2f50c539266f5467cbf1f27612cb3
+ F tool/GetTclKit.bat 6afa640edc7810725aec61c3076ac617c4aaf0b7
  F tool/Replace.cs 02c67258801c2fb5f63231e0ac0f220b4b36ba91
 -F tool/addopcodes.tcl 10c889c4a65ec6c5604e4a47306fa77ff57ae189
 +F tool/addopcodes.tcl f2e9aba2c2c718624fa14059198456d9e519b925
- F tool/build-all-msvc.bat 018c1b273458a90c8ba633c6f0c5654cfcb138bf x
+ F tool/build-all-msvc.bat c12328d06c45fec8baada5949e3d5af54bf8c887 x
  F tool/build-shell.sh 950f47c6174f1eea171319438b93ba67ff5bf367
  F tool/cg_anno.tcl f95b0006c52cf7f0496b506343415b6ee3cdcdd3 x
  F tool/checkSpacing.c 810e51703529a204fc4e1eb060e9ab663e3c06d2
@@@ -1484,9 -1499,10 +1508,10 @@@ F tool/lempar.c db1bdb4821f2d8fbd76e577
  F tool/libvers.c caafc3b689638a1d88d44bc5f526c2278760d9b9
  F tool/loadfts.c c3c64e4d5e90e8ba41159232c2189dba4be7b862
  F tool/logest.c 11346aa019e2e77a00902aa7d0cabd27bd2e8cca
+ F tool/max-limits.c cbb635fbb37ae4d05f240bfb5b5270bb63c54439
  F tool/mkautoconfamal.sh e855df211ecbcc7131dee817110ff386cfb112f7
 -F tool/mkkeywordhash.c f7f3b342211ac6a14258b9726d5b97cf4f548f22
 +F tool/mkkeywordhash.c f5ecfd09b56b8badc644554ed38c86056152b893
- F tool/mkmsvcmin.tcl 2f12f7fa8858bbe61cf81820a2da96c79ed1ca8d
+ F tool/mkmsvcmin.tcl 95b37e202cbed873aa8ffdbb493b9db45927be2b
  F tool/mkopcodec.tcl d1b6362bd3aa80d5520d4d6f3765badf01f6c43c
  F tool/mkopcodeh.tcl a01d2c1d8a6205b03fc635adf3735b4c523befd3
  F tool/mkopts.tcl 66ac10d240cc6e86abd37dc908d50382f84ff46e
@@@ -1552,7 -1568,7 +1577,7 @@@ F vsixtest/vsixtest.tcl 6a9a6ab600c25a9
  F vsixtest/vsixtest.vcxproj.data 2ed517e100c66dc455b492e1a33350c1b20fbcdc
  F vsixtest/vsixtest.vcxproj.filters 37e51ffedcdb064aad6ff33b6148725226cd608e
  F vsixtest/vsixtest_TemporaryKey.pfx e5b1b036facdb453873e7084e1cae9102ccc67a0
- P c8ca3e0a8d82dbb077551c2d952cb2043f78333b 391344d88a284f92c59b8d96a315b69292641de0
- R fb6607db49678e5588472158e22f722f
- U dan
- Z 69d374dd90bc72d9adab6847f15400aa
 -P 9d5350418b2f6113e0b50c57e8a872006f27753067baf08ffdfa7943c0c9a148
 -R f5d3be53ea90768240f7c6616a0ecd20
++P 50fb1eb368f14e4ddce2da875601c227f9f937fd c5441d2df2526723f72610cc14dd243223663979e67ecdd76fe06fcd366f2b29
++R cb23130cd73bf8b87b96abf4a0e40c76
+ U drh
 -Z c6323f1875b7921e440a4d008ab9c650
++Z e5649ef618566f41fb419552c48628f4
diff --cc manifest.uuid
index aec8401384,40296ca7c1..e33520b19d
--- a/manifest.uuid
+++ b/manifest.uuid
@@@ -1,1 -1,1 +1,1 @@@
- 50fb1eb368f14e4ddce2da875601c227f9f937fd
 -c5441d2df2526723f72610cc14dd243223663979e67ecdd76fe06fcd366f2b29
++fd5676fe7f55b3d4fa15ca119af7c064c6f9d053affdfd5e748785e300affbeb
diff --cc src/btree.c
index b05d911865,52c0c47dd5..e73a4eb37f
--- a/src/btree.c
+++ b/src/btree.c
@@@ -4431,8 -4101,12 +4496,13 @@@ int sqlite3BtreeSavepoint(Btree *p, in
      assert( op==SAVEPOINT_RELEASE || op==SAVEPOINT_ROLLBACK );
      assert( iSavepoint>=0 || (iSavepoint==-1 && op==SAVEPOINT_ROLLBACK) );
      sqlite3BtreeEnter(p);
 +    btreePtrmapEnd(pBt, op, iSavepoint);
-     rc = sqlite3PagerSavepoint(pBt->pPager, op, iSavepoint);
+     if( op==SAVEPOINT_ROLLBACK ){
+       rc = saveAllCursors(pBt, 0, 0);
+     }
+     if( rc==SQLITE_OK ){
+       rc = sqlite3PagerSavepoint(pBt->pPager, op, iSavepoint);
+     }
      if( rc==SQLITE_OK ){
        if( iSavepoint<0 && (pBt->btsFlags & BTS_INITIALLY_EMPTY)!=0 ){
          pBt->nPage = 0;