update bundled sqlite to 3.8.6.0

The "Fixed CE build of sqlite3" patch is *updated* in this change.
Since sqlite 3.8.6, SQLITE_OS_WINCE isn't defined early enough so we
have to check _WIN32_WCE directly.
(ea70ec8711)

Change-Id: I63ee5163fb915274c9780c169e1f8673755bba47
Reviewed-by: Andy Shaw <andy.shaw@digia.com>

src/3rdparty/sqlite/shell.c

@@ -64,6 +64,7 @@
 
 #if defined(_WIN32) || defined(WIN32)
 # include <io.h>
+# include <fcntl.h>
 #define isatty(h) _isatty(h)
 #ifndef access
 # define access(f,m) _access((f),(m))
@@ -458,6 +459,7 @@ struct callback_data {
   int showHeader;        /* True to show column names in List or Column mode */
   char *zDestTable;      /* Name of destination table when MODE_Insert */
   char separator[20];    /* Separator character for MODE_List */
+  char newline[20];      /* Record separator in MODE_Csv */
   int colWidth[100];     /* Requested width of each column when in column mode*/
   int actualWidth[100];  /* Actual width of each column */
   char nullvalue[20];    /* The text to print when a NULL comes back from
@@ -659,7 +661,8 @@ static const char needCsvQuote[] = {
 /*
 ** Output a single term of CSV.  Actually, p->separator is used for
 ** the separator, which may or may not be a comma.  p->nullvalue is
-** the null value.  Strings are quoted if necessary.
+** the null value.  Strings are quoted if necessary.  The separator
+** is only issued if bSep is true.
 */
 static void output_csv(struct callback_data *p, const char *z, int bSep){
   FILE *out = p->out;
@@ -855,17 +858,26 @@ static int shell_callback(void *pArg, int nArg, char **azArg, char **azCol, int
       break;
     }
     case MODE_Csv: {
+#if defined(WIN32) || defined(_WIN32)
+      fflush(p->out);
+      _setmode(_fileno(p->out), _O_BINARY);
+#endif
       if( p->cnt++==0 && p->showHeader ){
         for(i=0; i<nArg; i++){
           output_csv(p, azCol[i] ? azCol[i] : "", i<nArg-1);
         }
-        fprintf(p->out,"\n");
+        fprintf(p->out,"%s",p->newline);
       }
-      if( azArg==0 ) break;
+      if( azArg>0 ){
         for(i=0; i<nArg; i++){
           output_csv(p, azArg[i], i<nArg-1);
         }
-      fprintf(p->out,"\n");
+        fprintf(p->out,"%s",p->newline);
+      }
+#if defined(WIN32) || defined(_WIN32)
+      fflush(p->out);
+      _setmode(_fileno(p->out), _O_TEXT);
+#endif
       break;
     }
     case MODE_Insert: {
@@ -1579,9 +1591,11 @@ static char zHelp[] =
   "                         If TABLE specified, only dump tables matching\n"
   "                         LIKE pattern TABLE.\n"
   ".echo on|off           Turn command echo on or off\n"
+  ".eqp on|off            Enable or disable automatic EXPLAIN QUERY PLAN\n"
   ".exit                  Exit this program\n"
   ".explain ?on|off?      Turn output mode suitable for EXPLAIN on or off.\n"
   "                         With no args, it turns EXPLAIN on.\n"
+  ".fullschema            Show schema and the content of sqlite_stat tables\n"
   ".headers on|off        Turn display of headers on or off\n"
   ".help                  Show this message\n"
   ".import FILE TABLE     Import data from FILE into TABLE\n"
@@ -1617,7 +1631,8 @@ static char zHelp[] =
   ".schema ?TABLE?        Show the CREATE statements\n"
   "                         If TABLE specified, only show tables matching\n"
   "                         LIKE pattern TABLE.\n"
-  ".separator STRING      Change separator used by output mode and .import\n"
+  ".separator STRING ?NL? Change separator used by output mode and .import\n"
+  "                         NL is the end-of-line mark for CSV\n"
   ".shell CMD ARGS...     Run CMD ARGS... in a system shell\n"
   ".show                  Show the current values for various settings\n"
   ".stats on|off          Turn stats on or off\n"
@@ -1635,6 +1650,66 @@ static char zHelp[] =
 
 /* Forward reference */
 static int process_input(struct callback_data *p, FILE *in);
+/*
+** Implementation of the "readfile(X)" SQL function.  The entire content
+** of the file named X is read and returned as a BLOB.  NULL is returned
+** if the file does not exist or is unreadable.
+*/
+static void readfileFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  const char *zName;
+  FILE *in;
+  long nIn;
+  void *pBuf;
+
+  zName = (const char*)sqlite3_value_text(argv[0]);
+  if( zName==0 ) return;
+  in = fopen(zName, "rb");
+  if( in==0 ) return;
+  fseek(in, 0, SEEK_END);
+  nIn = ftell(in);
+  rewind(in);
+  pBuf = sqlite3_malloc( nIn );
+  if( pBuf && 1==fread(pBuf, nIn, 1, in) ){
+    sqlite3_result_blob(context, pBuf, nIn, sqlite3_free);
+  }else{
+    sqlite3_free(pBuf);
+  }
+  fclose(in);
+}
+
+/*
+** Implementation of the "writefile(X,Y)" SQL function.  The argument Y
+** is written into file X.  The number of bytes written is returned.  Or
+** NULL is returned if something goes wrong, such as being unable to open
+** file X for writing.
+*/
+static void writefileFunc(
+  sqlite3_context *context,
+  int argc,
+  sqlite3_value **argv
+){
+  FILE *out;
+  const char *z;
+  sqlite3_int64 rc;
+  const char *zFile;
+
+  zFile = (const char*)sqlite3_value_text(argv[0]);
+  if( zFile==0 ) return;
+  out = fopen(zFile, "wb");
+  if( out==0 ) return;
+  z = (const char*)sqlite3_value_blob(argv[1]);
+  if( z==0 ){
+    rc = 0;
+  }else{
+    rc = fwrite(z, 1, sqlite3_value_bytes(argv[1]), out);
+  }
+  fclose(out);
+  sqlite3_result_int64(context, rc);
+}
 
 /*
 ** Make sure the database is open.  If it is not, then open it.  If
@@ -1658,6 +1733,10 @@ static void open_db(struct callback_data *p, int keepAlive){
 #ifndef SQLITE_OMIT_LOAD_EXTENSION
     sqlite3_enable_load_extension(p->db, 1);
 #endif
+    sqlite3_create_function(db, "readfile", 1, SQLITE_UTF8, 0,
+                            readfileFunc, 0, 0);
+    sqlite3_create_function(db, "writefile", 2, SQLITE_UTF8, 0,
+                            writefileFunc, 0, 0);
   }
 }
 
@@ -2411,6 +2490,57 @@ static int do_meta_command(char *zLine, struct callback_data *p){
     }
   }else
 
+  if( c=='f' && strncmp(azArg[0], "fullschema", n)==0 ){
+    struct callback_data data;
+    char *zErrMsg = 0;
+    int doStats = 0;
+    if( nArg!=1 ){
+      fprintf(stderr, "Usage: .fullschema\n");
+      rc = 1;
+      goto meta_command_exit;
+    }
+    open_db(p, 0);
+    memcpy(&data, p, sizeof(data));
+    data.showHeader = 0;
+    data.mode = MODE_Semi;
+    rc = sqlite3_exec(p->db,
+       "SELECT sql FROM"
+       "  (SELECT sql sql, type type, tbl_name tbl_name, name name, rowid x"
+       "     FROM sqlite_master UNION ALL"
+       "   SELECT sql, type, tbl_name, name, rowid FROM sqlite_temp_master) "
+       "WHERE type!='meta' AND sql NOTNULL AND name NOT LIKE 'sqlite_%'"
+       "ORDER BY rowid",
+       callback, &data, &zErrMsg
+    );
+    if( rc==SQLITE_OK ){
+      sqlite3_stmt *pStmt;
+      rc = sqlite3_prepare_v2(p->db,
+               "SELECT rowid FROM sqlite_master"
+               " WHERE name GLOB 'sqlite_stat[134]'",
+               -1, &pStmt, 0);
+      doStats = sqlite3_step(pStmt)==SQLITE_ROW;
+      sqlite3_finalize(pStmt);
+    }
+    if( doStats==0 ){
+      fprintf(p->out, "/* No STAT tables available */\n");
+    }else{
+      fprintf(p->out, "ANALYZE sqlite_master;\n");
+      sqlite3_exec(p->db, "SELECT 'ANALYZE sqlite_master'",
+                   callback, &data, &zErrMsg);
+      data.mode = MODE_Insert;
+      data.zDestTable = "sqlite_stat1";
+      shell_exec(p->db, "SELECT * FROM sqlite_stat1",
+                 shell_callback, &data,&zErrMsg);
+      data.zDestTable = "sqlite_stat3";
+      shell_exec(p->db, "SELECT * FROM sqlite_stat3",
+                 shell_callback, &data,&zErrMsg);
+      data.zDestTable = "sqlite_stat4";
+      shell_exec(p->db, "SELECT * FROM sqlite_stat4",
+                 shell_callback, &data, &zErrMsg);
+      fprintf(p->out, "ANALYZE sqlite_master;\n");
+    }
+  }else
+
   if( c=='h' && strncmp(azArg[0], "headers", n)==0 ){
     if( nArg==2 ){
       p->showHeader = booleanValue(azArg[1]);
@@ -2553,7 +2683,7 @@ static int do_meta_command(char *zLine, struct callback_data *p){
                           "filling the rest with NULL\n",
                           sCsv.zFile, startLine, nCol, i+1);
           i++;
-          while( i<nCol ){ sqlite3_bind_null(pStmt, i); i++; }
+          while( i<=nCol ){ sqlite3_bind_null(pStmt, i); i++; }
         }
       }
       if( sCsv.cTerm==sCsv.cSeparator ){
@@ -2698,6 +2828,7 @@ static int do_meta_command(char *zLine, struct callback_data *p){
     }else if( c2=='c' && strncmp(azArg[1],"csv",n2)==0 ){
       p->mode = MODE_Csv;
       sqlite3_snprintf(sizeof(p->separator), p->separator, ",");
+      sqlite3_snprintf(sizeof(p->newline), p->newline, "\r\n");
     }else if( c2=='t' && strncmp(azArg[1],"tabs",n2)==0 ){
       p->mode = MODE_List;
       sqlite3_snprintf(sizeof(p->separator), p->separator, "\t");
@@ -2976,20 +3107,23 @@ static int do_meta_command(char *zLine, struct callback_data *p){
 #endif
 
   if( c=='s' && strncmp(azArg[0], "separator", n)==0 ){
-    if( nArg==2 ){
+    if( nArg<2 || nArg>3 ){
-      sqlite3_snprintf(sizeof(p->separator), p->separator,
+      fprintf(stderr, "Usage: .separator SEPARATOR ?NEWLINE?\n");
-                       "%.*s", (int)sizeof(p->separator)-1, azArg[1]);
-    }else{
-      fprintf(stderr, "Usage: .separator STRING\n");
       rc = 1;
     }
+    if( nArg>=2 ){
+      sqlite3_snprintf(sizeof(p->separator), p->separator, azArg[1]);
+    }
+    if( nArg>=3 ){
+      sqlite3_snprintf(sizeof(p->newline), p->newline, azArg[2]);
+    }
   }else
 
   if( c=='s'
    && (strncmp(azArg[0], "shell", n)==0 || strncmp(azArg[0],"system",n)==0)
   ){
     char *zCmd;
-    int i;
+    int i, x;
     if( nArg<2 ){
       fprintf(stderr, "Usage: .system COMMAND\n");
       rc = 1;
@@ -3000,8 +3134,9 @@ static int do_meta_command(char *zLine, struct callback_data *p){
       zCmd = sqlite3_mprintf(strchr(azArg[i],' ')==0?"%z %s":"%z \"%s\"",
                              zCmd, azArg[i]);
     }
-    (void)system(zCmd);
+    x = system(zCmd);
     sqlite3_free(zCmd);
+    if( x ) fprintf(stderr, "System command returns %d\n", x);
   }else
 
   if( c=='s' && strncmp(azArg[0], "show", n)==0 ){
@@ -3023,6 +3158,8 @@ static int do_meta_command(char *zLine, struct callback_data *p){
             strlen30(p->outfile) ? p->outfile : "stdout");
     fprintf(p->out,"%9.9s: ", "separator");
       output_c_string(p->out, p->separator);
+      fprintf(p->out," ");
+      output_c_string(p->out, p->newline);
       fprintf(p->out, "\n");
     fprintf(p->out,"%9.9s: %s\n","stats", p->statsOn ? "on" : "off");
     fprintf(p->out,"%9.9s: ","width");
@@ -3639,6 +3776,7 @@ static const char zOptions[] =
 #ifdef SQLITE_ENABLE_MULTIPLEX
   "   -multiplex           enable the multiplexor VFS\n"
 #endif
+  "   -newline SEP         set newline character(s) for CSV\n"
   "   -nullvalue TEXT      set text string for NULL values. Default ''\n"
   "   -separator SEP       set output field separator. Default: '|'\n"
   "   -stats               print memory stats before each finalize\n"
@@ -3668,6 +3806,7 @@ static void main_init(struct callback_data *data) {
   memset(data, 0, sizeof(*data));
   data->mode = MODE_List;
   memcpy(data->separator,"|", 2);
+  memcpy(data->newline,"\r\n", 3);
   data->showHeader = 0;
   sqlite3_config(SQLITE_CONFIG_URI, 1);
   sqlite3_config(SQLITE_CONFIG_LOG, shellLog, data);
@@ -3760,6 +3899,7 @@ int main(int argc, char **argv){
     if( z[1]=='-' ) z++;
     if( strcmp(z,"-separator")==0
      || strcmp(z,"-nullvalue")==0
+     || strcmp(z,"-newline")==0
      || strcmp(z,"-cmd")==0
     ){
       (void)cmdline_option_value(argc, argv, ++i);
@@ -3869,6 +4009,9 @@ int main(int argc, char **argv){
     }else if( strcmp(z,"-separator")==0 ){
       sqlite3_snprintf(sizeof(data.separator), data.separator,
                        "%s",cmdline_option_value(argc,argv,++i));
+    }else if( strcmp(z,"-newline")==0 ){
+      sqlite3_snprintf(sizeof(data.newline), data.newline,
+                       "%s",cmdline_option_value(argc,argv,++i));
     }else if( strcmp(z,"-nullvalue")==0 ){
       sqlite3_snprintf(sizeof(data.nullvalue), data.nullvalue,
                        "%s",cmdline_option_value(argc,argv,++i));

src/3rdparty/sqlite/sqlite3.h

@@ -107,9 +107,9 @@ extern "C" {
 ** [sqlite3_libversion_number()], [sqlite3_sourceid()],
 ** [sqlite_version()] and [sqlite_source_id()].
 */
-#define SQLITE_VERSION        "3.8.5"
+#define SQLITE_VERSION        "3.8.6"
-#define SQLITE_VERSION_NUMBER 3008005
+#define SQLITE_VERSION_NUMBER 3008006
-#define SQLITE_SOURCE_ID      "2014-06-04 14:06:34 b1ed4f2a34ba66c29b130f8d13e9092758019212"
+#define SQLITE_SOURCE_ID      "2014-08-15 11:46:33 9491ba7d738528f168657adb43a198238abde19e"
 
 /*
 ** CAPI3REF: Run-Time Library Version Numbers
@@ -269,7 +269,7 @@ typedef sqlite_uint64 sqlite3_uint64;
 **
 ** ^The sqlite3_close() and sqlite3_close_v2() routines are destructors
 ** for the [sqlite3] object.
-** ^Calls to sqlite3_close() and sqlite3_close_v2() return SQLITE_OK if
+** ^Calls to sqlite3_close() and sqlite3_close_v2() return [SQLITE_OK] if
 ** the [sqlite3] object is successfully destroyed and all associated
 ** resources are deallocated.
 **
@@ -277,7 +277,7 @@ typedef sqlite_uint64 sqlite3_uint64;
 ** statements or unfinished sqlite3_backup objects then sqlite3_close()
 ** will leave the database connection open and return [SQLITE_BUSY].
 ** ^If sqlite3_close_v2() is called with unfinalized prepared statements
-** and unfinished sqlite3_backups, then the database connection becomes
+** and/or unfinished sqlite3_backups, then the database connection becomes
 ** an unusable "zombie" which will automatically be deallocated when the
 ** last prepared statement is finalized or the last sqlite3_backup is
 ** finished.  The sqlite3_close_v2() interface is intended for use with
@@ -290,7 +290,7 @@ typedef sqlite_uint64 sqlite3_uint64;
 ** with the [sqlite3] object prior to attempting to close the object.  ^If
 ** sqlite3_close_v2() is called on a [database connection] that still has
 ** outstanding [prepared statements], [BLOB handles], and/or
-** [sqlite3_backup] objects then it returns SQLITE_OK but the deallocation
+** [sqlite3_backup] objects then it returns [SQLITE_OK] and the deallocation
 ** of resources is deferred until all [prepared statements], [BLOB handles],
 ** and [sqlite3_backup] objects are also destroyed.
 **
@@ -386,16 +386,14 @@ SQLITE_API int sqlite3_exec(
 
 /*
 ** CAPI3REF: Result Codes
-** KEYWORDS: SQLITE_OK {error code} {error codes}
+** KEYWORDS: {result code definitions}
-** KEYWORDS: {result code} {result codes}
 **
 ** Many SQLite functions return an integer result code from the set shown
 ** here in order to indicate success or failure.
 **
 ** New error codes may be added in future versions of SQLite.
 **
-** See also: [SQLITE_IOERR_READ | extended result codes],
+** See also: [extended result code definitions]
-** [sqlite3_vtab_on_conflict()] [SQLITE_ROLLBACK | result codes].
 */
 #define SQLITE_OK           0   /* Successful result */
 /* beginning-of-error-codes */
@@ -433,26 +431,19 @@ SQLITE_API int sqlite3_exec(
 
 /*
 ** CAPI3REF: Extended Result Codes
-** KEYWORDS: {extended error code} {extended error codes}
+** KEYWORDS: {extended result code definitions}
-** KEYWORDS: {extended result code} {extended result codes}
 **
-** In its default configuration, SQLite API routines return one of 26 integer
+** In its default configuration, SQLite API routines return one of 30 integer
-** [SQLITE_OK | result codes].  However, experience has shown that many of
+** [result codes].  However, experience has shown that many of
 ** these result codes are too coarse-grained.  They do not provide as
 ** much information about problems as programmers might like.  In an effort to
 ** address this, newer versions of SQLite (version 3.3.8 and later) include
 ** support for additional result codes that provide more detailed information
-** about errors. The extended result codes are enabled or disabled
+** about errors. These [extended result codes] are enabled or disabled
 ** on a per database connection basis using the
-** [sqlite3_extended_result_codes()] API.
+** [sqlite3_extended_result_codes()] API.  Or, the extended code for
-**
+** the most recent error can be obtained using
-** Some of the available extended result codes are listed here.
+** [sqlite3_extended_errcode()].
-** One may expect the number of extended result codes will increase
-** over time.  Software that uses extended result codes should expect
-** to see new result codes in future releases of SQLite.
-**
-** The SQLITE_OK result code will never be extended.  It will always
-** be exactly zero.
 */
 #define SQLITE_IOERR_READ              (SQLITE_IOERR | (1<<8))
 #define SQLITE_IOERR_SHORT_READ        (SQLITE_IOERR | (2<<8))
@@ -685,7 +676,7 @@ struct sqlite3_file {
 ** locking strategy (for example to use dot-file locks), to inquire
 ** about the status of a lock, or to break stale locks.  The SQLite
 ** core reserves all opcodes less than 100 for its own use.
-** A [SQLITE_FCNTL_LOCKSTATE | list of opcodes] less than 100 is available.
+** A [file control opcodes | list of opcodes] less than 100 is available.
 ** Applications that define a custom xFileControl method should use opcodes
 ** greater than 100 to avoid conflicts.  VFS implementations should
 ** return [SQLITE_NOTFOUND] for file control opcodes that they do not
@@ -758,6 +749,7 @@ struct sqlite3_io_methods {
 
 /*
 ** CAPI3REF: Standard File Control Opcodes
+** KEYWORDS: {file control opcodes} {file control opcode}
 **
 ** These integer constants are opcodes for the xFileControl method
 ** of the [sqlite3_io_methods] object and for the [sqlite3_file_control()]
@@ -2037,27 +2029,33 @@ SQLITE_API int sqlite3_complete16(const void *sql);
 /*
 ** CAPI3REF: Register A Callback To Handle SQLITE_BUSY Errors
 **
-** ^This routine sets a callback function that might be invoked whenever
+** ^The sqlite3_busy_handler(D,X,P) routine sets a callback function X
-** an attempt is made to open a database table that another thread
+** that might be invoked with argument P whenever
-** or process has locked.
+** an attempt is made to access a database table associated with
+** [database connection] D when another thread
+** or process has the table locked.
+** The sqlite3_busy_handler() interface is used to implement
+** [sqlite3_busy_timeout()] and [PRAGMA busy_timeout].
 **
-** ^If the busy callback is NULL, then [SQLITE_BUSY] or [SQLITE_IOERR_BLOCKED]
+** ^If the busy callback is NULL, then [SQLITE_BUSY]
 ** is returned immediately upon encountering the lock.  ^If the busy callback
 ** is not NULL, then the callback might be invoked with two arguments.
 **
 ** ^The first argument to the busy handler is a copy of the void* pointer which
 ** is the third argument to sqlite3_busy_handler().  ^The second argument to
 ** the busy handler callback is the number of times that the busy handler has
-** been invoked for this locking event.  ^If the
+** been invoked for the same locking event.  ^If the
 ** busy callback returns 0, then no additional attempts are made to
-** access the database and [SQLITE_BUSY] or [SQLITE_IOERR_BLOCKED] is returned.
+** access the database and [SQLITE_BUSY] is returned
+** to the application.
 ** ^If the callback returns non-zero, then another attempt
-** is made to open the database for reading and the cycle repeats.
+** is made to access the database and the cycle repeats.
 **
 ** The presence of a busy handler does not guarantee that it will be invoked
 ** when there is lock contention. ^If SQLite determines that invoking the busy
 ** handler could result in a deadlock, it will go ahead and return [SQLITE_BUSY]
-** or [SQLITE_IOERR_BLOCKED] instead of invoking the busy handler.
+** to the application instead of invoking the 
+** busy handler.
 ** Consider a scenario where one process is holding a read lock that
 ** it is trying to promote to a reserved lock and
 ** a second process is holding a reserved lock that it is trying
@@ -2071,28 +2069,15 @@ SQLITE_API int sqlite3_complete16(const void *sql);
 **
 ** ^The default busy callback is NULL.
 **
-** ^The [SQLITE_BUSY] error is converted to [SQLITE_IOERR_BLOCKED]
-** when SQLite is in the middle of a large transaction where all the
-** changes will not fit into the in-memory cache.  SQLite will
-** already hold a RESERVED lock on the database file, but it needs
-** to promote this lock to EXCLUSIVE so that it can spill cache
-** pages into the database file without harm to concurrent
-** readers.  ^If it is unable to promote the lock, then the in-memory
-** cache will be left in an inconsistent state and so the error
-** code is promoted from the relatively benign [SQLITE_BUSY] to
-** the more severe [SQLITE_IOERR_BLOCKED].  ^This error code promotion
-** forces an automatic rollback of the changes.  See the
-** <a href="/cvstrac/wiki?p=CorruptionFollowingBusyError">
-** CorruptionFollowingBusyError</a> wiki page for a discussion of why
-** this is important.
-**
 ** ^(There can only be a single busy handler defined for each
 ** [database connection].  Setting a new busy handler clears any
 ** previously set handler.)^  ^Note that calling [sqlite3_busy_timeout()]
-** will also set or clear the busy handler.
+** or evaluating [PRAGMA busy_timeout=N] will change the
+** busy handler and thus clear any previously set busy handler.
 **
 ** The busy callback should not take any actions which modify the
-** database connection that invoked the busy handler.  Any such actions
+** database connection that invoked the busy handler.  In other words,
+** the busy handler is not reentrant.  Any such actions
 ** result in undefined behavior.
 ** 
 ** A busy handler must not close the database connection
@@ -2108,7 +2093,7 @@ SQLITE_API int sqlite3_busy_handler(sqlite3*, int(*)(void*,int), void*);
 ** will sleep multiple times until at least "ms" milliseconds of sleeping
 ** have accumulated.  ^After at least "ms" milliseconds of sleeping,
 ** the handler returns 0 which causes [sqlite3_step()] to return
-** [SQLITE_BUSY] or [SQLITE_IOERR_BLOCKED].
+** [SQLITE_BUSY].
 **
 ** ^Calling this routine with an argument less than or equal to zero
 ** turns off all busy handlers.
@@ -2117,6 +2102,8 @@ SQLITE_API int sqlite3_busy_handler(sqlite3*, int(*)(void*,int), void*);
 ** [database connection] any any given moment.  If another busy handler
 ** was defined  (using [sqlite3_busy_handler()]) prior to calling
 ** this routine, that other busy handler is cleared.)^
+**
+** See also:  [PRAGMA busy_timeout]
 */
 SQLITE_API int sqlite3_busy_timeout(sqlite3*, int ms);
 
@@ -2518,8 +2505,8 @@ SQLITE_API int sqlite3_set_authorizer(
 ** [sqlite3_set_authorizer | authorizer documentation] for additional
 ** information.
 **
-** Note that SQLITE_IGNORE is also used as a [SQLITE_ROLLBACK | return code]
+** Note that SQLITE_IGNORE is also used as a [conflict resolution mode]
-** from the [sqlite3_vtab_on_conflict()] interface.
+** returned from the [sqlite3_vtab_on_conflict()] interface.
 */
 #define SQLITE_DENY   1   /* Abort the SQL statement with an error */
 #define SQLITE_IGNORE 2   /* Don't allow access, but don't generate an error */
@@ -4706,6 +4693,13 @@ SQLITE_API int sqlite3_sleep(int);
 ** is a NULL pointer, then SQLite performs a search for an appropriate
 ** temporary file directory.
 **
+** Applications are strongly discouraged from using this global variable.
+** It is required to set a temporary folder on Windows Runtime (WinRT).
+** But for all other platforms, it is highly recommended that applications
+** neither read nor write this variable.  This global variable is a relic
+** that exists for backwards compatibility of legacy applications and should
+** be avoided in new projects.
+**
 ** It is not safe to read or modify this variable in more than one
 ** thread at a time.  It is not safe to read or modify this variable
 ** if a [database connection] is being used at the same time in a separate
@@ -4724,6 +4718,11 @@ SQLITE_API int sqlite3_sleep(int);
 ** Hence, if this variable is modified directly, either it should be
 ** made NULL or made to point to memory obtained from [sqlite3_malloc]
 ** or else the use of the [temp_store_directory pragma] should be avoided.
+** Except when requested by the [temp_store_directory pragma], SQLite
+** does not free the memory that sqlite3_temp_directory points to.  If
+** the application wants that memory to be freed, it must do
+** so itself, taking care to only do so after all [database connection]
+** objects have been destroyed.
 **
 ** <b>Note to Windows Runtime users:</b>  The temporary directory must be set
 ** prior to calling [sqlite3_open] or [sqlite3_open_v2].  Otherwise, various
@@ -5858,10 +5857,12 @@ SQLITE_API int sqlite3_vfs_unregister(sqlite3_vfs*);
 ** <li>  SQLITE_MUTEX_RECURSIVE
 ** <li>  SQLITE_MUTEX_STATIC_MASTER
 ** <li>  SQLITE_MUTEX_STATIC_MEM
-** <li>  SQLITE_MUTEX_STATIC_MEM2
+** <li>  SQLITE_MUTEX_STATIC_OPEN
 ** <li>  SQLITE_MUTEX_STATIC_PRNG
 ** <li>  SQLITE_MUTEX_STATIC_LRU
-** <li>  SQLITE_MUTEX_STATIC_LRU2
+** <li>  SQLITE_MUTEX_STATIC_PMEM
+** <li>  SQLITE_MUTEX_STATIC_APP1
+** <li>  SQLITE_MUTEX_STATIC_APP2
 ** </ul>)^
 **
 ** ^The first two constants (SQLITE_MUTEX_FAST and SQLITE_MUTEX_RECURSIVE)
@@ -6065,6 +6066,9 @@ SQLITE_API int sqlite3_mutex_notheld(sqlite3_mutex*);
 #define SQLITE_MUTEX_STATIC_LRU       6  /* lru page list */
 #define SQLITE_MUTEX_STATIC_LRU2      7  /* NOT USED */
 #define SQLITE_MUTEX_STATIC_PMEM      7  /* sqlite3PageMalloc() */
+#define SQLITE_MUTEX_STATIC_APP1      8  /* For use by application */
+#define SQLITE_MUTEX_STATIC_APP2      9  /* For use by application */
+#define SQLITE_MUTEX_STATIC_APP3     10  /* For use by application */
 
 /*
 ** CAPI3REF: Retrieve the mutex for a database connection
@@ -6160,7 +6164,8 @@ SQLITE_API int sqlite3_test_control(int op, ...);
 #define SQLITE_TESTCTRL_NEVER_CORRUPT           20
 #define SQLITE_TESTCTRL_VDBE_COVERAGE           21
 #define SQLITE_TESTCTRL_BYTEORDER               22
-#define SQLITE_TESTCTRL_LAST                    22
+#define SQLITE_TESTCTRL_ISINIT                  23
+#define SQLITE_TESTCTRL_LAST                    23
 
 /*
 ** CAPI3REF: SQLite Runtime Status
@@ -7144,6 +7149,9 @@ SQLITE_API void *sqlite3_wal_hook(
 ** ^The [wal_autocheckpoint pragma] can be used to invoke this interface
 ** from SQL.
 **
+** ^Checkpoints initiated by this mechanism are
+** [sqlite3_wal_checkpoint_v2|PASSIVE].
+**
 ** ^Every new [database connection] defaults to having the auto-checkpoint
 ** enabled with a threshold of 1000 or [SQLITE_DEFAULT_WAL_AUTOCHECKPOINT]
 ** pages.  The use of this interface
@@ -7160,6 +7168,10 @@ SQLITE_API int sqlite3_wal_autocheckpoint(sqlite3 *db, int N);
 ** empty string, then a checkpoint is run on all databases of
 ** connection D.  ^If the database connection D is not in
 ** [WAL | write-ahead log mode] then this interface is a harmless no-op.
+** ^The [sqlite3_wal_checkpoint(D,X)] interface initiates a
+** [sqlite3_wal_checkpoint_v2|PASSIVE] checkpoint.
+** Use the [sqlite3_wal_checkpoint_v2()] interface to get a FULL
+** or RESET checkpoint.
 **
 ** ^The [wal_checkpoint pragma] can be used to invoke this interface
 ** from SQL.  ^The [sqlite3_wal_autocheckpoint()] interface and the
@@ -7182,10 +7194,12 @@ SQLITE_API int sqlite3_wal_checkpoint(sqlite3 *db, const char *zDb);
 **   Checkpoint as many frames as possible without waiting for any database 
 **   readers or writers to finish. Sync the db file if all frames in the log
 **   are checkpointed. This mode is the same as calling 
-**   sqlite3_wal_checkpoint(). The busy-handler callback is never invoked.
+**   sqlite3_wal_checkpoint(). The [sqlite3_busy_handler|busy-handler callback]
+**   is never invoked.
 **
 ** <dt>SQLITE_CHECKPOINT_FULL<dd>
-**   This mode blocks (calls the busy-handler callback) until there is no
+**   This mode blocks (it invokes the
+**   [sqlite3_busy_handler|busy-handler callback]) until there is no
 **   database writer and all readers are reading from the most recent database
 **   snapshot. It then checkpoints all frames in the log file and syncs the
 **   database file. This call blocks database writers while it is running,
@@ -7193,7 +7207,8 @@ SQLITE_API int sqlite3_wal_checkpoint(sqlite3 *db, const char *zDb);
 **
 ** <dt>SQLITE_CHECKPOINT_RESTART<dd>
 **   This mode works the same way as SQLITE_CHECKPOINT_FULL, except after 
-**   checkpointing the log file it blocks (calls the busy-handler callback)
+**   checkpointing the log file it blocks (calls the 
+**   [sqlite3_busy_handler|busy-handler callback])
 **   until all readers are reading from the database file only. This ensures 
 **   that the next client to write to the database file restarts the log file 
 **   from the beginning. This call blocks database writers while it is running,
@@ -7331,6 +7346,7 @@ SQLITE_API int sqlite3_vtab_on_conflict(sqlite3 *);
 
 /*
 ** CAPI3REF: Conflict resolution modes
+** KEYWORDS: {conflict resolution mode}
 **
 ** These constants are returned by [sqlite3_vtab_on_conflict()] to
 ** inform a [virtual table] implementation what the [ON CONFLICT] mode