Update to SQLite 3.35.1

configure.ac

@@ -4,7 +4,7 @@ dnl Copyright (C) 2019-2021 Ulrich Telle <ulrich@telle-online.de>
 dnl
 dnl This file is covered by the same licence as the entire SQLite3 Multiple Ciphers package.
 
-AC_INIT([sqlite3mc], [1.2.0], [ulrich@telle-online.de])
+AC_INIT([sqlite3mc], [1.2.1], [ulrich@telle-online.de])
 
 dnl This is the version tested with, might work with earlier ones.
 AC_PREREQ([2.69])

readme.md

@@ -6,12 +6,14 @@ In the course of time several developers had asked for a stand-alone version of
 
 In late February 2020 work started on a new implementation of a SQLite encryption extension that will be able to support SQLite 3.32.0 and later. The new approach is based on [SQLite's VFS feature](https://www.sqlite.org/vfs.html). This approach has its pros and cons. On the one hand, the code is less closely coupled with SQLite itself; on the other hand, access to SQLite's internal data structures is more complex.
 
-This project is _Work In Progress_. As of December 2020, the code base is now rather stable, however, further major code modifications and/or reorganizations may still occur.
+This project is _Work In Progress_. As of March 2021, the code base is now rather stable, however, further major code modifications and/or reorganizations may still occur.
 
 The code was mainly developed under Windows, but was tested under Linux as well. At the moment no major issues are known.
 
 ## Version history
 
+* 1.2.1 - *March 2021*
+  - Based on SQLite version 3.35.1
 * 1.2.0 - *March 2021*
   - Based on SQLite version 3.35.0
   - Enabled new SQLite Math Extension (Note: _log_ function now computes _log10_, not _ln_.)

src/shell.c

@@ -14037,13 +14037,13 @@ static const char *(azHelp[]) = {
   ".databases               List names and files of attached databases",
   ".dbconfig ?op? ?val?     List or change sqlite3_db_config() options",
   ".dbinfo ?DB?             Show status information about the database",
-  ".dump ?TABLE?            Render database content as SQL",
+  ".dump ?OBJECTS?          Render database content as SQL",
   "   Options:",
   "     --data-only            Output only INSERT statements",
   "     --newlines             Allow unescaped newline characters in output",
   "     --nosys                Omit system tables (ex: \"sqlite_stat1\")",
   "     --preserve-rowids      Include ROWID values in the output",
-  "   TABLE is a LIKE pattern for the tables to dump",
+  "   OBJECTS is a LIKE pattern for tables, indexes, triggers or views to dump",
   "   Additional LIKE patterns can be given in subsequent arguments",
   ".echo on|off             Turn command echo on or off",
   ".eqp on|off|full|...     Enable or disable automatic EXPLAIN QUERY PLAN",

src/sqlite3.c

@@ -1,6 +1,6 @@
 /******************************************************************************
 ** This file is an amalgamation of many separate C source files from SQLite
-** version 3.35.0.  By combining all the individual C code files into this
+** version 3.35.1.  By combining all the individual C code files into this
 ** single large file, the entire code can be compiled as a single translation
 ** unit.  This allows many compilers to do optimizations that would not be
 ** possible if the files were compiled separately.  Performance improvements
@@ -1186,9 +1186,9 @@ extern "C" {
 ** [sqlite3_libversion_number()], [sqlite3_sourceid()],
 ** [sqlite_version()] and [sqlite_source_id()].
 */
-#define SQLITE_VERSION        "3.35.0"
-#define SQLITE_VERSION_NUMBER 3035000
-#define SQLITE_SOURCE_ID      "2021-03-12 15:10:09 acd63062eb06748bfe9e4886639e4f2b54ea6a496a83f10716abbaba4115500b"
+#define SQLITE_VERSION        "3.35.1"
+#define SQLITE_VERSION_NUMBER 3035001
+#define SQLITE_SOURCE_ID      "2021-03-15 16:53:57 aea12399bf1fdc76af43499d4624c3afa17c3e6c2459b71c195804bb98def66a"
 
 /*
 ** CAPI3REF: Run-Time Library Version Numbers
@@ -17007,7 +17007,10 @@ struct sqlite3 {
     unsigned orphanTrigger : 1; /* Last statement is orphaned TEMP trigger */
     unsigned imposterTable : 1; /* Building an imposter table */
     unsigned reopenMemdb : 1;   /* ATTACH is really a reopen using MemDB */
+    unsigned bDropColumn : 1;   /* Doing schema check after DROP COLUMN */
     char **azInit;              /* "type", "name", and "tbl_name" columns */
+                                /*   or if bDropColumn, then azInit[0] is the */
+                                /*   name of the column being dropped */
   } init;
   int nVdbeActive;              /* Number of VDBEs currently running */
   int nVdbeRead;                /* Number of active VDBEs that read or write */
@@ -99167,6 +99170,7 @@ static int lookupName(
     assert( pExpr->op==TK_ID );
     if( ExprHasProperty(pExpr,EP_DblQuoted)
      && areDoubleQuotedStringsEnabled(db, pTopNC)
+     && (db->init.bDropColumn==0 || sqlite3StrICmp(zCol, db->init.azInit[0])!=0)
     ){
       /* If a double-quoted identifier does not match any known column name,
       ** then treat it as a string.
@@ -99181,6 +99185,11 @@ static int lookupName(
       ** Someday, I hope to get rid of this hack. Unfortunately there is
       ** a huge amount of legacy SQL that uses it. So for now, we just
       ** issue a warning.
+      **
+      ** 2021-03-15: ticket 1c24a659e6d7f3a1
+      ** Do not do the ID-to-STRING conversion when doing the schema
+      ** sanity check following a DROP COLUMN if the identifer name matches
+      ** the name of the column being dropped.
       */
       sqlite3_log(SQLITE_WARNING,
         "double-quoted string literal: \"%w\"", zCol);
@@ -106780,17 +106789,18 @@ static void renameTestSchema(
   Parse *pParse,                  /* Parse context */
   const char *zDb,                /* Name of db to verify schema of */
   int bTemp,                      /* True if this is the temp db */
-  const char *zWhen               /* "when" part of error message */
+  const char *zWhen,              /* "when" part of error message */
+  const char *zDropColumn         /* Name of column being dropped */
 ){
   pParse->colNamesSet = 1;
   sqlite3NestedParse(pParse,
       "SELECT 1 "
       "FROM \"%w\"." DFLT_SCHEMA_TABLE " "
       "WHERE name NOT LIKE 'sqliteX_%%' ESCAPE 'X'"
       " AND sql NOT LIKE 'create virtual%%'"
-      " AND sqlite_rename_test(%Q, sql, type, name, %d, %Q)=NULL ",
+      " AND sqlite_rename_test(%Q, sql, type, name, %d, %Q, %Q)=NULL ",
       zDb,
-      zDb, bTemp, zWhen
+      zDb, bTemp, zWhen, zDropColumn
   );
 
   if( bTemp==0 ){
@@ -106799,8 +106809,8 @@ static void renameTestSchema(
         "FROM temp." DFLT_SCHEMA_TABLE " "
         "WHERE name NOT LIKE 'sqliteX_%%' ESCAPE 'X'"
         " AND sql NOT LIKE 'create virtual%%'"
-        " AND sqlite_rename_test(%Q, sql, type, name, 1, %Q)=NULL ",
-        zDb, zWhen
+        " AND sqlite_rename_test(%Q, sql, type, name, 1, %Q, %Q)=NULL ",
+        zDb, zWhen, zDropColumn
     );
   }
 }
@@ -106963,7 +106973,7 @@ SQLITE_PRIVATE void sqlite3AlterRenameTable(
             "sql = sqlite_rename_table(%Q, type, name, sql, %Q, %Q, 1), "
             "tbl_name = "
               "CASE WHEN tbl_name=%Q COLLATE nocase AND "
-              "    sqlite_rename_test(%Q, sql, type, name, 1, 'after rename') "
+              "  sqlite_rename_test(%Q, sql, type, name, 1, 'after rename',0) "
               "THEN %Q ELSE tbl_name END "
             "WHERE type IN ('view', 'trigger')"
         , zDb, zTabName, zName, zTabName, zDb, zName);
@@ -106983,7 +106993,7 @@ SQLITE_PRIVATE void sqlite3AlterRenameTable(
 #endif
 
   renameReloadSchema(pParse, iDb, INITFLAG_AlterRename);
-  renameTestSchema(pParse, zDb, iDb==1, "after rename");
+  renameTestSchema(pParse, zDb, iDb==1, "after rename", 0);
 
 exit_rename_table:
   sqlite3SrcListDelete(db, pSrc);
@@ -107351,7 +107361,7 @@ SQLITE_PRIVATE void sqlite3AlterRenameColumn(
 
   /* Drop and reload the database schema. */
   renameReloadSchema(pParse, iSchema, INITFLAG_AlterRename);
-  renameTestSchema(pParse, zDb, iSchema==1, "after rename");
+  renameTestSchema(pParse, zDb, iSchema==1, "after rename", 0);
 
  exit_rename_column:
   sqlite3SrcListDelete(db, pSrc);
@@ -107775,12 +107785,17 @@ static int renameParseSql(
   const char *zDb,                /* Name of schema SQL belongs to */
   sqlite3 *db,                    /* Database handle */
   const char *zSql,               /* SQL to parse */
-  int bTemp                       /* True if SQL is from temp schema */
+  int bTemp,                      /* True if SQL is from temp schema */
+  const char *zDropColumn         /* Name of column being dropped */
 ){
   int rc;
   char *zErr = 0;
 
   db->init.iDb = bTemp ? 1 : sqlite3FindDbName(db, zDb);
+  if( zDropColumn ){
+    db->init.bDropColumn = 1;
+    db->init.azInit = (char**)&zDropColumn;
+  }
 
   /* Parse the SQL statement passed as the first argument. If no error
   ** occurs and the parse does not result in a new table, index or
@@ -107813,6 +107828,7 @@ static int renameParseSql(
 #endif
 
   db->init.iDb = 0;
+  db->init.bDropColumn = 0;
   return rc;
 }
 
@@ -108114,7 +108130,7 @@ static void renameColumnFunc(
 #ifndef SQLITE_OMIT_AUTHORIZATION
   db->xAuth = 0;
 #endif
-  rc = renameParseSql(&sParse, zDb, db, zSql, bTemp);
+  rc = renameParseSql(&sParse, zDb, db, zSql, bTemp, 0);
 
   /* Find tokens that need to be replaced. */
   memset(&sWalker, 0, sizeof(Walker));
@@ -108318,7 +108334,7 @@ static void renameTableFunc(
     sWalker.xSelectCallback = renameTableSelectCb;
     sWalker.u.pRename = &sCtx;
 
-    rc = renameParseSql(&sParse, zDb, db, zInput, bTemp);
+    rc = renameParseSql(&sParse, zDb, db, zInput, bTemp, 0);
 
     if( rc==SQLITE_OK ){
       int isLegacy = (db->flags & SQLITE_LegacyAlter);
@@ -108434,6 +108450,7 @@ static void renameTableFunc(
 **   3: Object name.
 **   4: True if object is from temp schema.
 **   5: "when" part of error message.
+**   6: Name of column being dropped, or NULL.
 **
 ** Unless it finds an error, this function normally returns NULL. However, it
 ** returns integer value 1 if:
@@ -108452,6 +108469,7 @@ static void renameTableTest(
   int bTemp = sqlite3_value_int(argv[4]);
   int isLegacy = (db->flags & SQLITE_LegacyAlter);
   char const *zWhen = (const char*)sqlite3_value_text(argv[5]);
+  char const *zDropColumn = (const char*)sqlite3_value_text(argv[6]);
 
 #ifndef SQLITE_OMIT_AUTHORIZATION
   sqlite3_xauth xAuth = db->xAuth;
@@ -108462,7 +108480,7 @@ static void renameTableTest(
   if( zDb && zInput ){
     int rc;
     Parse sParse;
-    rc = renameParseSql(&sParse, zDb, db, zInput, bTemp);
+    rc = renameParseSql(&sParse, zDb, db, zInput, bTemp, zDropColumn);
     if( rc==SQLITE_OK ){
       if( isLegacy==0 && sParse.pNewTable && sParse.pNewTable->pSelect ){
         NameContext sNC;
@@ -108530,7 +108548,7 @@ static void dropColumnFunc(
 #endif
 
   UNUSED_PARAMETER(NotUsed);
-  rc = renameParseSql(&sParse, zDb, db, zSql, iSchema==1);
+  rc = renameParseSql(&sParse, zDb, db, zSql, iSchema==1, 0);
   if( rc!=SQLITE_OK ) goto drop_column_done;
   pTab = sParse.pNewTable;
   if( pTab==0 || pTab->nCol==1 || iCol>=pTab->nCol ){
@@ -108623,7 +108641,7 @@ SQLITE_PRIVATE void sqlite3AlterDropColumn(Parse *pParse, SrcList *pSrc, Token *
   iDb = sqlite3SchemaToIndex(db, pTab->pSchema);
   assert( iDb>=0 );
   zDb = db->aDb[iDb].zDbSName;
-  renameTestSchema(pParse, zDb, iDb==1, "");
+  renameTestSchema(pParse, zDb, iDb==1, "", 0);
   sqlite3NestedParse(pParse,
       "UPDATE \"%w\"." DFLT_SCHEMA_TABLE " SET "
       "sql = sqlite_drop_column(%d, sql, %d) "
@@ -108633,7 +108651,7 @@ SQLITE_PRIVATE void sqlite3AlterDropColumn(Parse *pParse, SrcList *pSrc, Token *
 
   /* Drop and reload the database schema. */
   renameReloadSchema(pParse, iDb, INITFLAG_AlterDrop);
-  renameTestSchema(pParse, zDb, iDb==1, "after drop column");
+  renameTestSchema(pParse, zDb, iDb==1, "after drop column", zCol);
 
   /* Edit rows of table on disk */
   if( pParse->nErr==0 && (pTab->aCol[iCol].colFlags & COLFLAG_VIRTUAL)==0 ){
@@ -108693,7 +108711,7 @@ SQLITE_PRIVATE void sqlite3AlterFunctions(void){
   static FuncDef aAlterTableFuncs[] = {
     INTERNAL_FUNCTION(sqlite_rename_column,  9, renameColumnFunc),
     INTERNAL_FUNCTION(sqlite_rename_table,   7, renameTableFunc),
-    INTERNAL_FUNCTION(sqlite_rename_test,    6, renameTableTest),
+    INTERNAL_FUNCTION(sqlite_rename_test,    7, renameTableTest),
     INTERNAL_FUNCTION(sqlite_drop_column,    3, dropColumnFunc),
   };
   sqlite3InsertBuiltinFuncs(aAlterTableFuncs, ArraySize(aAlterTableFuncs));
@@ -229192,7 +229210,7 @@ static void fts5SourceIdFunc(
 ){
   assert( nArg==0 );
   UNUSED_PARAM2(nArg, apUnused);
-  sqlite3_result_text(pCtx, "fts5: 2021-03-12 15:10:09 acd63062eb06748bfe9e4886639e4f2b54ea6a496a83f10716abbaba4115500b", -1, SQLITE_TRANSIENT);
+  sqlite3_result_text(pCtx, "fts5: 2021-03-15 16:53:57 aea12399bf1fdc76af43499d4624c3afa17c3e6c2459b71c195804bb98def66a", -1, SQLITE_TRANSIENT);
 }
 
 /*
@@ -234118,9 +234136,9 @@ SQLITE_API int sqlite3_stmt_init(
 #endif /* !defined(SQLITE_CORE) || defined(SQLITE_ENABLE_STMTVTAB) */
 
 /************** End of stmt.c ************************************************/
-#if __LINE__!=234121
+#if __LINE__!=234139
 #undef SQLITE_SOURCE_ID
-#define SQLITE_SOURCE_ID      "2021-03-12 15:10:09 acd63062eb06748bfe9e4886639e4f2b54ea6a496a83f10716abbaba4115alt2"
+#define SQLITE_SOURCE_ID      "2021-03-15 16:53:57 aea12399bf1fdc76af43499d4624c3afa17c3e6c2459b71c195804bb98dealt2"
 #endif
 /* Return the source-id for this library */
 SQLITE_API const char *sqlite3_sourceid(void){ return SQLITE_SOURCE_ID; }

src/sqlite3.h

@@ -123,9 +123,9 @@ extern "C" {
 ** [sqlite3_libversion_number()], [sqlite3_sourceid()],
 ** [sqlite_version()] and [sqlite_source_id()].
 */
-#define SQLITE_VERSION        "3.35.0"
-#define SQLITE_VERSION_NUMBER 3035000
-#define SQLITE_SOURCE_ID      "2021-03-12 15:10:09 acd63062eb06748bfe9e4886639e4f2b54ea6a496a83f10716abbaba4115500b"
+#define SQLITE_VERSION        "3.35.1"
+#define SQLITE_VERSION_NUMBER 3035001
+#define SQLITE_SOURCE_ID      "2021-03-15 16:53:57 aea12399bf1fdc76af43499d4624c3afa17c3e6c2459b71c195804bb98def66a"
 
 /*
 ** CAPI3REF: Run-Time Library Version Numbers

src/sqlite3mc_version.h

@@ -14,8 +14,8 @@
 
 #define SQLITE3MC_VERSION_MAJOR      1
 #define SQLITE3MC_VERSION_MINOR      2
-#define SQLITE3MC_VERSION_RELEASE    0
+#define SQLITE3MC_VERSION_RELEASE    1
 #define SQLITE3MC_VERSION_SUBRELEASE 0
-#define SQLITE3MC_VERSION_STRING     "SQLite3 Multiple Ciphers 1.2.0"
+#define SQLITE3MC_VERSION_STRING     "SQLite3 Multiple Ciphers 1.2.1"
 
 #endif /* SQLITE3MC_VERSION_H_ */