diff --git a/manifest b/manifest
index a450331661..229a52bf53 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Reset\sthe\sschema\sbefore\schecking\sfor\soutstanding\sstatements\sinside\nsqlite3_close()\sso\sthat\svirtual\stables\swill\sbe\sdisconnected.\s(CVS\s3341)
-D 2006-07-30T20:50:45
+C Remove\smost\sstatic\sand\sglobal\svariables\sfrom\sa\spure\sbuild.\s\sThere\nare\sstill\sa\snumber\sof\sstatic\sand\sglobal\svariables\sused\sfor\stesting.\s(CVS\s3342)
+D 2006-08-08T13:51:43
 F Makefile.in 9c2a76055c305868cc5f5b73e29a252ff3632c0a
 F Makefile.linux-gcc 2d8574d1ba75f129aba2019f0b959db380a90935
 F README 9c4e2d6706bdcc3efdd773ce752a8cdab4f90028
@@ -34,7 +34,7 @@ F src/alter.c eba661e77bfd00282fbfa316cdb6aef04856fedc
 F src/analyze.c 7d2b7ab9a9c2fd6e55700f69064dfdd3e36d7a8a
 F src/attach.c b11eb4d5d3fb99a10a626956bccc7215f6b68b16
 F src/auth.c 902f4722661c796b97f007d9606bd7529c02597f
-F src/btree.c fc077741b35efd2015b0f56e62d00370bed1fcc8
+F src/btree.c c4757940df58fc0914d2c4f1778a66101df2c6b9
 F src/btree.h 061c50e37de7f50b58528e352d400cf33ead7418
 F src/build.c 2ea8ad0e2e49b3957692588182524e6c390ab5a9
 F src/callback.c fd9bb39f7ff6b52bad8365617abc61c720640429
@@ -62,10 +62,10 @@ F src/os_unix.c 17d91581a0ab478a06cb6f257b707a4c4a93e5a7
 F src/os_unix.h 5768d56d28240d3fe4537fac08cc85e4fb52279e
 F src/os_win.c c6976ae50b61fb5b7dce399e578aa1865f02b84f
 F src/os_win.h 41a946bea10f61c158ce8645e7646b29d44f122b
-F src/pager.c 2ae998a64f98bc2fa14893e08537365865a09519
-F src/pager.h 43f32f3847421f7502cfbb66f4eb2302b8033818
+F src/pager.c e51c079b3cad8394898a6c22330150339103700a
+F src/pager.h 0cff9de5e9019cb695a04d18df8caaaff933a272
 F src/parse.y ecac666005bec0c813681a81de88d1de5d27577f
-F src/pragma.c 27d5e395c5d950931c7ac4fe610e7c2993e2fa55
+F src/pragma.c cc12939bb74a6e28eb2e867e75175eecffe089a1
 F src/prepare.c 06fdfea0920f2fe67df29ce6b2eebc83a9e6aedf
 F src/printf.c b179b6ed12f793e028dd169e2e2e2b2a37eedc63
 F src/random.c d40f8d356cecbd351ccfab6eaedd7ec1b54f5261
@@ -97,11 +97,11 @@ F src/update.c 951f95ef044cf6d28557c48dc35cb0711a0b9129
 F src/utf.c 4459801e9b00cfd69993bfca58545d3775682d6e
 F src/util.c 5409031819ee4672c5f9c3ac7cf517e267a25845
 F src/vacuum.c 5b37d0f436f8e1ffacd17934e44720b38d2247f9
-F src/vdbe.c 106bc6216f1bf0176ae645813647b7c496ace962
+F src/vdbe.c 3cea0b930abca02facd4c01fc6f369015730a926
 F src/vdbe.h 258b5d1c0aaa72192f09ff0568ce42b383f156fa
 F src/vdbeInt.h e3eaab262b67b84474625cfc38aec1125c32834b
-F src/vdbeapi.c a2274726d16893337c60937235040fc36792cb48
-F src/vdbeaux.c f3d25be011aa5b883166466ed06c7c40dbc6cc2e
+F src/vdbeapi.c 81f531d7dc5c898131b02ef85f6c6144ab2892cf
+F src/vdbeaux.c e850cdfa3a2a575cdd79a0a998dab812a01e10d3
 F src/vdbefifo.c 9efb94c8c3f4c979ebd0028219483f88e57584f5
 F src/vdbemem.c 5f0afe3b92bb2c037f8d5d697f7c151fa50783a3
 F src/vtab.c cae036dc7b0b7d7f5f17eef646b1d53940a21572
@@ -377,7 +377,7 @@ F www/tclsqlite.tcl bb0d1357328a42b1993d78573e587c6dcbc964b9
 F www/vdbe.tcl 87a31ace769f20d3627a64fa1fade7fed47b90d0
 F www/version3.tcl 890248cf7b70e60c383b0e84d77d5132b3ead42b
 F www/whentouse.tcl 97e2b5cd296f7d8057e11f44427dea8a4c2db513
-P 47353f62ca7635b693718997e792358d16bd117b
-R 9a3e9175ab65d62b48310a673dd1e811
+P af05c3ca06163ef92ca1ca135302c00b7ddddabf
+R f5ef17a5493e5cfcde82b3eadef654c3
 U drh
-Z fc59d02196f8c93727c6028eaedb3295
+Z 67d07ebceb0040add56e64c2bec7e348
diff --git a/manifest.uuid b/manifest.uuid
index 80a411901f..bd52948c38 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-af05c3ca06163ef92ca1ca135302c00b7ddddabf
\ No newline at end of file
+76e4d4187779097954038e444111f837737e789c
\ No newline at end of file
diff --git a/src/btree.c b/src/btree.c
index babcf6a339..181a0adebc 100644
--- a/src/btree.c
+++ b/src/btree.c
@@ -9,7 +9,7 @@
 **    May you share freely, never taking more than you give.
 **
 *************************************************************************
-** $Id: btree.c,v 1.325 2006/06/27 16:34:57 danielk1977 Exp $
+** $Id: btree.c,v 1.326 2006/08/08 13:51:43 drh Exp $
 **
 ** This file implements a external (disk-based) database using BTrees.
 ** For a detailed discussion of BTrees, refer to
@@ -426,10 +426,10 @@ struct BtCursor {
 #if SQLITE_TEST
 # define TRACE(X)   if( sqlite3_btree_trace )\
                         { sqlite3DebugPrintf X; fflush(stdout); }
+int sqlite3_btree_trace=0;  /* True to enable tracing */
 #else
 # define TRACE(X)
 #endif
-int sqlite3_btree_trace=0;  /* True to enable tracing */
 
 /*
 ** Forward declaration
@@ -2367,7 +2367,7 @@ static int autoVacuumCommit(BtShared *pBt, Pgno *nTrunc){
   MemPage *pFreeMemPage = 0; /* "" */
 
 #ifndef NDEBUG
-  int nRef = *sqlite3pager_stats(pPager);
+  int nRef = sqlite3pager_refcount(pPager);
 #endif
 
   assert( pBt->autoVacuum );
@@ -2475,7 +2475,7 @@ static int autoVacuumCommit(BtShared *pBt, Pgno *nTrunc){
   assert( finSize!=PENDING_BYTE_PAGE(pBt) );
 
 autovacuum_out:
-  assert( nRef==*sqlite3pager_stats(pPager) );
+  assert( nRef==sqlite3pager_refcount(pPager) );
   if( rc!=SQLITE_OK ){
     sqlite3pager_rollback(pPager);
   }
@@ -6388,7 +6388,7 @@ char *sqlite3BtreeIntegrityCheck(Btree *p, int *aRoot, int nRoot){
   IntegrityCk sCheck;
   BtShared *pBt = p->pBt;
 
-  nRef = *sqlite3pager_stats(pBt->pPager);
+  nRef = sqlite3pager_refcount(pBt->pPager);
   if( lockBtreeWithRetry(p)!=SQLITE_OK ){
     return sqliteStrDup("Unable to acquire a read lock on the database");
   }
@@ -6454,10 +6454,10 @@ char *sqlite3BtreeIntegrityCheck(Btree *p, int *aRoot, int nRoot){
   /* Make sure this analysis did not leave any unref() pages
   */
   unlockBtreeIfUnused(pBt);
-  if( nRef != *sqlite3pager_stats(pBt->pPager) ){
+  if( nRef != sqlite3pager_refcount(pBt->pPager) ){
     checkAppendMsg(&sCheck, 0, 
       "Outstanding page count goes from %d to %d during this analysis",
-      nRef, *sqlite3pager_stats(pBt->pPager)
+      nRef, sqlite3pager_refcount(pBt->pPager)
     );
   }
 
diff --git a/src/pager.c b/src/pager.c
index 76273ea71e..1013c1c2c3 100644
--- a/src/pager.c
+++ b/src/pager.c
@@ -18,7 +18,7 @@
 ** file simultaneously, or one process from reading the database while
 ** another is writing.
 **
-** @(#) $Id: pager.c,v 1.270 2006/06/28 18:18:09 drh Exp $
+** @(#) $Id: pager.c,v 1.271 2006/08/08 13:51:43 drh Exp $
 */
 #ifndef SQLITE_OMIT_DISKIO
 #include "sqliteInt.h"
@@ -370,7 +370,7 @@ static const unsigned char aJournalMagic[] = {
 /*
 ** Enable reference count tracking (for debugging) here:
 */
-#ifdef SQLITE_DEBUG
+#ifdef SQLITE_TEST
   int pager3_refinfo_enable = 0;
   static void pager_refinfo(PgHdr *p){
     static int cnt = 0;
@@ -1535,7 +1535,9 @@ void sqlite3pager_set_safety_level(Pager *pPager, int level, int full_fsync){
 ** attempts to open a temporary file.  This information is used for
 ** testing and analysis only.  
 */
+#ifdef SQLITE_TEST
 int sqlite3_opentemp_count = 0;
+#endif
 
 /*
 ** Open a temporary file.  Write the name of the file into zFile
@@ -1549,7 +1551,9 @@ int sqlite3_opentemp_count = 0;
 static int sqlite3pager_opentemp(char *zFile, OsFile **pFd){
   int cnt = 8;
   int rc;
+#ifdef SQLITE_TEST
   sqlite3_opentemp_count++;  /* Used for testing and analysis only */
+#endif
   do{
     cnt--;
     sqlite3OsTempFileName(zFile);
@@ -3497,6 +3501,14 @@ int sqlite3pager_isreadonly(Pager *pPager){
   return pPager->readOnly;
 }
 
+/*
+** Return the number of references to the pager.
+*/
+int sqlite3pager_refcount(Pager *pPager){
+  return pPager->nRef;
+}
+
+#ifdef SQLITE_TEST
 /*
 ** This routine is used for testing and analysis only.
 */
@@ -3508,15 +3520,14 @@ int *sqlite3pager_stats(Pager *pPager){
   a[3] = pPager->dbSize;
   a[4] = pPager->state;
   a[5] = pPager->errCode;
-#ifdef SQLITE_TEST
   a[6] = pPager->nHit;
   a[7] = pPager->nMiss;
   a[8] = pPager->nOvfl;
   a[9] = pPager->nRead;
   a[10] = pPager->nWrite;
-#endif
   return a;
 }
+#endif
 
 /*
 ** Set the statement rollback point.
diff --git a/src/pager.h b/src/pager.h
index 23d7a2d211..8b9c6e7528 100644
--- a/src/pager.h
+++ b/src/pager.h
@@ -13,7 +13,7 @@
 ** subsystem.  The page cache subsystem reads and writes a file a page
 ** at a time and provides a journal for rollback.
 **
-** @(#) $Id: pager.h,v 1.50 2006/03/06 18:23:17 drh Exp $
+** @(#) $Id: pager.h,v 1.51 2006/08/08 13:51:43 drh Exp $
 */
 
 #ifndef _PAGER_H_
@@ -98,6 +98,7 @@ int sqlite3pager_stmt_commit(Pager*);
 int sqlite3pager_stmt_rollback(Pager*);
 void sqlite3pager_dont_rollback(void*);
 void sqlite3pager_dont_write(Pager*, Pgno);
+int sqlite3pager_refcount(Pager*);
 int *sqlite3pager_stats(Pager*);
 void sqlite3pager_set_safety_level(Pager*,int,int);
 const char *sqlite3pager_filename(Pager*);
diff --git a/src/pragma.c b/src/pragma.c
index 921bdbf185..299278746f 100644
--- a/src/pragma.c
+++ b/src/pragma.c
@@ -11,7 +11,7 @@
 *************************************************************************
 ** This file contains code used to implement the PRAGMA command.
 **
-** $Id: pragma.c,v 1.120 2006/03/03 21:20:17 drh Exp $
+** $Id: pragma.c,v 1.121 2006/08/08 13:51:43 drh Exp $
 */
 #include "sqliteInt.h"
 #include "os.h"
@@ -780,7 +780,7 @@ void sqlite3Pragma(
   ** useful if invoked immediately after the main database i
   */
   if( sqlite3StrICmp(zLeft, "encoding")==0 ){
-    static struct EncName {
+    static const struct EncName {
       char *zName;
       u8 enc;
     } encnames[] = {
@@ -790,12 +790,11 @@ void sqlite3Pragma(
       { "UTF16le",  SQLITE_UTF16LE     },
       { "UTF-16be", SQLITE_UTF16BE     },
       { "UTF16be",  SQLITE_UTF16BE     },
-      { "UTF-16",   0 /* Filled in at run-time */ },
-      { "UTF16",    0 /* Filled in at run-time */ },
+      { "UTF-16",   0                  }, /* SQLITE_UTF16NATIVE */
+      { "UTF16",    0                  }, /* SQLITE_UTF16NATIVE */
       { 0, 0 }
     };
-    struct EncName *pEnc;
-    encnames[6].enc = encnames[7].enc = SQLITE_UTF16NATIVE;
+    const struct EncName *pEnc;
     if( !zRight ){    /* "PRAGMA encoding" */
       if( sqlite3ReadSchema(pParse) ) goto pragma_out;
       sqlite3VdbeSetNumCols(v, 1);
@@ -820,7 +819,7 @@ void sqlite3Pragma(
       ){
         for(pEnc=&encnames[0]; pEnc->zName; pEnc++){
           if( 0==sqlite3StrICmp(zRight, pEnc->zName) ){
-            ENC(pParse->db) = pEnc->enc;
+            ENC(pParse->db) = pEnc->enc ? pEnc->enc : SQLITE_UTF16NATIVE;
             break;
           }
         }
diff --git a/src/vdbe.c b/src/vdbe.c
index 40595e4bc2..4b203e0d50 100644
--- a/src/vdbe.c
+++ b/src/vdbe.c
@@ -43,7 +43,7 @@
 ** in this file for details.  If in doubt, do not deviate from existing
 ** commenting and indentation practices when changing or adding code.
 **
-** $Id: vdbe.c,v 1.572 2006/07/26 13:43:31 drh Exp $
+** $Id: vdbe.c,v 1.573 2006/08/08 13:51:43 drh Exp $
 */
 #include "sqliteInt.h"
 #include "os.h"
@@ -57,7 +57,9 @@
 ** working correctly.  This variable has no function other than to
 ** help verify the correct operation of the library.
 */
+#ifdef SQLITE_TEST
 int sqlite3_search_count = 0;
+#endif
 
 /*
 ** When this global variable is positive, it gets decremented once before
@@ -67,7 +69,9 @@ int sqlite3_search_count = 0;
 ** This facility is used for testing purposes only.  It does not function
 ** in an ordinary build.
 */
+#ifdef SQLITE_TEST
 int sqlite3_interrupt_count = 0;
+#endif
 
 /*
 ** The next global variable is incremented each type the OP_Sort opcode
@@ -76,7 +80,9 @@ int sqlite3_interrupt_count = 0;
 ** has no function other than to help verify the correct operation of the
 ** library.
 */
+#ifdef SQLITE_TEST
 int sqlite3_sort_count = 0;
+#endif
 
 /*
 ** Release the memory associated with the given stack level.  This
@@ -2824,7 +2830,9 @@ case OP_MoveGt: {       /* no-push */
     pC->deferredMoveto = 0;
     pC->cacheStatus = CACHE_STALE;
     *pC->pIncrKey = 0;
+#ifdef SQLITE_TEST
     sqlite3_search_count++;
+#endif
     if( oc==OP_MoveGe || oc==OP_MoveGt ){
       if( res<0 ){
         rc = sqlite3BtreeNext(pC->pCursor, &res);
@@ -3582,8 +3590,10 @@ case OP_Last: {        /* no-push */
 ** correctly optimizing out sorts.
 */
 case OP_Sort: {        /* no-push */
+#ifdef SQLITE_TEST
   sqlite3_sort_count++;
   sqlite3_search_count--;
+#endif
   /* Fall through into OP_Rewind */
 }
 /* Opcode: Rewind P1 P2 *
@@ -3656,7 +3666,9 @@ case OP_Next: {        /* no-push */
     }
     if( res==0 ){
       pc = pOp->p2 - 1;
+#ifdef SQLITE_TEST
       sqlite3_search_count++;
+#endif
     }
   }else{
     pC->nullRow = 1;
diff --git a/src/vdbeapi.c b/src/vdbeapi.c
index a57cff3f8b..a0ced3d791 100644
--- a/src/vdbeapi.c
+++ b/src/vdbeapi.c
@@ -383,10 +383,9 @@ static Mem *columnMem(sqlite3_stmt *pStmt, int i){
   Vdbe *pVm = (Vdbe *)pStmt;
   int vals = sqlite3_data_count(pStmt);
   if( i>=vals || i<0 ){
-    static Mem nullMem;
-    if( nullMem.flags==0 ){ nullMem.flags = MEM_Null; }
+    static const Mem nullMem = {0, 0.0, "", 0, MEM_Null, MEM_Null };
     sqlite3Error(pVm->db, SQLITE_RANGE, 0);
-    return &nullMem;
+    return (Mem*)&nullMem;
   }
   return &pVm->pTos[(1-vals)+i];
 }
diff --git a/src/vdbeaux.c b/src/vdbeaux.c
index bd5a001e68..a2f4d55136 100644
--- a/src/vdbeaux.c
+++ b/src/vdbeaux.c
@@ -782,7 +782,9 @@ void sqlite3VdbeMakeReady(
     resizeOpArray(p, p->nOp);
     assert( nVar>=0 );
     assert( nStack<p->nOp );
-    nStack = isExplain ? 10 : nStack;
+    if( isExplain ){
+      nStack = 10;
+    }
     p->aStack = sqliteMalloc(
         nStack*sizeof(p->aStack[0])    /* aStack */
       + nArg*sizeof(Mem*)              /* apArg */