Merge pull request #51 from jlmjanssen/release/v3.49.0

feat: import release 3.49.0

Author: jlmjanssen

source/CHANGELOG.md

@@ -1,5 +1,21 @@
 # Changelog
 
+## SQLite Release 3.49.0 On 2025-02-06
+
+1. Enhancements to the query planner:
+    1. Improve the query-time index optimization so that it works on WITHOUT ROWID tables.
+    2. Better query plans for large star-query joins. This fixes three different performance regressions that were reported on the SQLite Forum.
+    3. When two or more queries have the same estimated cost, use the one with the fewer bytes per row.
+2. Enhance the iif() SQL function so that it can accept any number of arguments greater than or equal to two.
+3. Enhance the session extension so that it works on databases that make use of generated columns.
+4. Omit the SQLITE_USE_STDIO_FOR_CONSOLE compile-time option which was not implemented correctly and never worked right. In its place add the SQLITE_USE_W32_FOR_CONSOLE_IO compile-time option. This option applies to command-line tools like the CLI only, not to the SQLite core. It causes Win32 APIs to be used for console I/O instead of stdio. This option affects Windows builds only.
+5. Three new options to sqlite3_db_config(). All default to "on".
+    1. SQLITE_DBCONFIG_ENABLE_ATTACH_CREATE
+    2. SQLITE_DBCONFIG_ENABLE_ATTACH_WRITE
+    3. SQLITE_DBCONFIG_ENABLE_COMMENTS
+6. Replace Autotools with Autosetup for the configure script used in the precompiled amalgamation tarball. The configure script for the canonical source code was changed to Autosetup in the previous (3.48.0) release. Only the main SQLite configure script in the amalgamation tarball is changed. The (deprecated) configuration script use by TEA subdirectory of the amalgamation tarball still relies on Autotools.
+7. Various minor patches and fixes for problems seen in the 3.48.0 release.
+
 ## SQLite Release 3.48.0 On 2025-01-14
 
 1. Refactor the "configure" script used to help build SQLite from canonical sources, to fix bugs, improve performance, and make the code more maintainable.

source/README.md

@@ -1,14 +1,14 @@
-Download: https://sqlite.org/2025/sqlite-amalgamation-3480000.zip
+Download: https://sqlite.org/2025/sqlite-amalgamation-3490000.zip
 
 ```
-Archive:  sqlite-amalgamation-3480000.zip
+Archive:  sqlite-amalgamation-3490000.zip
  Length   Method    Size  Cmpr    Date    Time   CRC-32   Name
 --------  ------  ------- ---- ---------- ----- --------  ----
-       0  Stored        0   0% 2025-01-14 12:22 00000000  sqlite-amalgamation-3480000/
- 9215145  Defl:N  2374125  74% 2025-01-14 12:22 2ab2f383  sqlite-amalgamation-3480000/sqlite3.c
- 1055648  Defl:N   269788  74% 2025-01-14 12:22 153c494b  sqlite-amalgamation-3480000/shell.c
-  653276  Defl:N   168945  74% 2025-01-14 12:22 addf6ccf  sqlite-amalgamation-3480000/sqlite3.h
-   38149  Defl:N     6615  83% 2025-01-14 12:22 c5ea7fc8  sqlite-amalgamation-3480000/sqlite3ext.h
+       0  Stored        0   0% 2025-02-06 14:59 00000000  sqlite-amalgamation-3490000/
+ 9232623  Defl:N  2378534  74% 2025-02-06 14:59 192a8c39  sqlite-amalgamation-3490000/sqlite3.c
+ 1056211  Defl:N   269962  74% 2025-02-06 14:59 028b8fa6  sqlite-amalgamation-3490000/shell.c
+  658960  Defl:N   170172  74% 2025-02-06 14:59 6d20a34a  sqlite-amalgamation-3490000/sqlite3.h
+   38149  Defl:N     6615  83% 2025-02-06 14:59 c5ea7fc8  sqlite-amalgamation-3490000/sqlite3ext.h
 --------          -------  ---                            -------
-10962218          2819473  74%                            5 files
+10985943          2825283  74%                            5 files
 ```

source/shell.c

@@ -357,6 +357,11 @@ void sqlite3_fsetmode(FILE *stream, int mode);
 ** use O_U8TEXT when writing to the Windows console (or anything
 ** else for which _isatty() returns true) and to use O_BINARY or O_TEXT
 ** for all other output channels.
+**
+** The SQLITE_USE_W32_FOR_CONSOLE_IO macro is also available.  If
+** defined, it forces the use of Win32 APIs for all console I/O, both
+** input and output.  This is necessary for some non-Microsoft run-times
+** that implement stdio differently from Microsoft/Visual-Studio.
 */
 #if defined(SQLITE_U8TEXT_ONLY)
 # define UseWtextForOutput(fd) 1
@@ -459,10 +464,10 @@ char *sqlite3_fgets(char *buf, int sz, FILE *in){
     */
     wchar_t *b1 = sqlite3_malloc( sz*sizeof(wchar_t) );
     if( b1==0 ) return 0;
-#ifndef SQLITE_USE_STDIO_FOR_CONSOLE
+#ifdef SQLITE_USE_W32_FOR_CONSOLE_IO
     DWORD nRead = 0;
     if( IsConsole(in)
-     && ReadConsoleW(GetStdHandle(STD_INPUT_HANDLE), b1, sz, &nRead, 0)
+     && ReadConsoleW(GetStdHandle(STD_INPUT_HANDLE), b1, sz-1, &nRead, 0)
     ){
       b1[nRead] = 0;
     }else
@@ -537,7 +542,7 @@ int sqlite3_fputs(const char *z, FILE *out){
     sz = MultiByteToWideChar(CP_UTF8, 0, z, sz, b1, sz);
     b1[sz] = 0;
 
-#ifndef SQLITE_STDIO_FOR_CONSOLE
+#ifdef SQLITE_USE_W32_FOR_CONSOLE_IO
     DWORD nWr = 0;
     if( IsConsole(out)
       && WriteConsoleW(GetStdHandle(STD_OUTPUT_HANDLE),b1,sz,&nWr,0)
@@ -547,8 +552,9 @@ int sqlite3_fputs(const char *z, FILE *out){
     }else
 #endif
     {
-      /* For non-console I/O, or if SQLITE_USE_STDIO_FOR_CONSOLE is defined
-      ** then write using the standard library. */
+      /* As long as SQLITE_USE_W32_FOR_CONSOLE_IO is not defined, or for
+      ** non-console I/O even if that macro is defined, write using the
+      ** standard library. */
       _setmode(_fileno(out), _O_U8TEXT);
       if( UseBinaryWText(out) ){
         piecemealOutput(b1, sz, out);
@@ -5314,7 +5320,7 @@ static u8* fromBase64( char *pIn, int ncIn, u8 *pOut ){
       deliberate_fall_through; /* FALLTHRU */
     case 1:
       pOut[0] = (qv>>16) & 0xff;
-      deliberate_fall_through; /* FALLTHRU */
+      break;
     }
     pOut += nbo;
   }
@@ -17199,7 +17205,7 @@ static void vfstraceDlClose(sqlite3_vfs *pVfs, void *pHandle){
   vfstrace_info *pInfo = (vfstrace_info*)pVfs->pAppData;
   sqlite3_vfs *pRoot = pInfo->pRootVfs;
   vfstraceOnOff(pInfo, VTR_DLCLOSE);
-  vfstrace_printf(pInfo, "%s.xDlOpen()\n", pInfo->zVfsName);
+  vfstrace_printf(pInfo, "%s.xDlClose()\n", pInfo->zVfsName);
   pRoot->xDlClose(pRoot, pHandle);
 }
 
@@ -28885,6 +28891,9 @@ static int do_meta_command(char *zLine, ShellState *p){
       const char *zName;
       int op;
     } aDbConfig[] = {
+        { "attach_create",      SQLITE_DBCONFIG_ENABLE_ATTACH_CREATE  },
+        { "attach_write",       SQLITE_DBCONFIG_ENABLE_ATTACH_WRITE   },
+        { "comments",           SQLITE_DBCONFIG_ENABLE_COMMENTS       },
         { "defensive",          SQLITE_DBCONFIG_DEFENSIVE             },
         { "dqs_ddl",            SQLITE_DBCONFIG_DQS_DDL               },
         { "dqs_dml",            SQLITE_DBCONFIG_DQS_DML               },
@@ -31635,6 +31644,7 @@ static int do_meta_command(char *zLine, ShellState *p){
             { 0x04000000, 1, "NullUnusedCols" },
             { 0x08000000, 1, "OnePass" },
             { 0x10000000, 1, "OrderBySubq" },
+            { 0x20000000, 1, "StarQuery" },
             { 0xffffffff, 0, "All" },
           };
           unsigned int curOpt;