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Overview
Comment:Fuzz test cases for UPSERT.
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SHA3-256: fd11fbd21893d520de5a2249f825ecb5839fa4943f5c207e9e9bf8b52f4e2695
User & Date: drh 2018-05-08 12:49:53.757
Context
2018-05-08
13:03
Fix a harmless compiler warning in fuzzcheck. Add new OSSFuzz test cases to the test case library. (check-in: d2619746cb user: drh tags: trunk)
12:49
Fuzz test cases for UPSERT. (check-in: fd11fbd218 user: drh tags: trunk)
2018-05-07
18:41
Activate the cell-overwrite optimization for index b-trees. (check-in: a68697d10e user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to Makefile.in.
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# Databases containing fuzzer test cases
#
FUZZDATA = \
  $(TOP)/test/fuzzdata1.db \
  $(TOP)/test/fuzzdata2.db \
  $(TOP)/test/fuzzdata3.db \
  $(TOP)/test/fuzzdata4.db \
  $(TOP)/test/fuzzdata5.db


# Standard options to testfixture
#
TESTOPTS = --verbose=file --output=test-out.txt

# Extra compiler options for various shell tools
#







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# Databases containing fuzzer test cases
#
FUZZDATA = \
  $(TOP)/test/fuzzdata1.db \
  $(TOP)/test/fuzzdata2.db \
  $(TOP)/test/fuzzdata3.db \
  $(TOP)/test/fuzzdata4.db \
  $(TOP)/test/fuzzdata5.db \
  $(TOP)/test/fuzzdata6.db

# Standard options to testfixture
#
TESTOPTS = --verbose=file --output=test-out.txt

# Extra compiler options for various shell tools
#
Changes to Makefile.msc.
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# Databases containing fuzzer test cases
#
FUZZDATA = \
  $(TOP)\test\fuzzdata1.db \
  $(TOP)\test\fuzzdata2.db \
  $(TOP)\test\fuzzdata3.db \
  $(TOP)\test\fuzzdata4.db \
  $(TOP)\test\fuzzdata5.db

# <</mark>>

# Additional compiler options for the shell.  These are only effective
# when the shell is not being dynamically linked.
#
!IF $(DYNAMIC_SHELL)==0 && $(FOR_WIN10)==0
SHELL_COMPILE_OPTS = $(SHELL_COMPILE_OPTS) -DSQLITE_ENABLE_JSON1 -DSQLITE_ENABLE_FTS4 -DSQLITE_ENABLE_EXPLAIN_COMMENTS -DSQLITE_ENABLE_STMTVTAB







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# Databases containing fuzzer test cases
#
FUZZDATA = \
  $(TOP)\test\fuzzdata1.db \
  $(TOP)\test\fuzzdata2.db \
  $(TOP)\test\fuzzdata3.db \
  $(TOP)\test\fuzzdata4.db \
  $(TOP)\test\fuzzdata5.db \
  $(TOP)\test\fuzzdata6.db
# <</mark>>

# Additional compiler options for the shell.  These are only effective
# when the shell is not being dynamically linked.
#
!IF $(DYNAMIC_SHELL)==0 && $(FOR_WIN10)==0
SHELL_COMPILE_OPTS = $(SHELL_COMPILE_OPTS) -DSQLITE_ENABLE_JSON1 -DSQLITE_ENABLE_FTS4 -DSQLITE_ENABLE_EXPLAIN_COMMENTS -DSQLITE_ENABLE_STMTVTAB
Changes to main.mk.
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# Databases containing fuzzer test cases
#
FUZZDATA = \
  $(TOP)/test/fuzzdata1.db \
  $(TOP)/test/fuzzdata2.db \
  $(TOP)/test/fuzzdata3.db \
  $(TOP)/test/fuzzdata4.db \
  $(TOP)/test/fuzzdata5.db


# Standard options to testfixture
#
TESTOPTS = --verbose=file --output=test-out.txt

# Extra compiler options for various shell tools
#







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# Databases containing fuzzer test cases
#
FUZZDATA = \
  $(TOP)/test/fuzzdata1.db \
  $(TOP)/test/fuzzdata2.db \
  $(TOP)/test/fuzzdata3.db \
  $(TOP)/test/fuzzdata4.db \
  $(TOP)/test/fuzzdata5.db \
  $(TOP)/test/fuzzdata6.db

# Standard options to testfixture
#
TESTOPTS = --verbose=file --output=test-out.txt

# Extra compiler options for various shell tools
#
Changes to test/fuzzcheck.c.
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*/
static void rebuild_database(sqlite3 *db){
  int rc;
  rc = sqlite3_exec(db, 
     "BEGIN;\n"
     "CREATE TEMP TABLE dbx AS SELECT DISTINCT dbcontent FROM db;\n"
     "DELETE FROM db;\n"
     "INSERT INTO db(dbid, dbcontent) SELECT NULL, dbcontent FROM dbx ORDER BY 2;\n"

     "DROP TABLE dbx;\n"
     "CREATE TEMP TABLE sx AS SELECT DISTINCT sqltext FROM xsql;\n"
     "DELETE FROM xsql;\n"
     "INSERT INTO xsql(sqlid,sqltext) SELECT NULL, sqltext FROM sx ORDER BY 2;\n"

     "DROP TABLE sx;\n"
     "COMMIT;\n"
     "PRAGMA page_size=1024;\n"
     "VACUUM;\n", 0, 0, 0);
  if( rc ) fatalError("cannot rebuild: %s", sqlite3_errmsg(db));
}








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*/
static void rebuild_database(sqlite3 *db){
  int rc;
  rc = sqlite3_exec(db, 
     "BEGIN;\n"
     "CREATE TEMP TABLE dbx AS SELECT DISTINCT dbcontent FROM db;\n"
     "DELETE FROM db;\n"
     "INSERT INTO db(dbid, dbcontent) "
        " SELECT NULL, dbcontent FROM dbx ORDER BY 2;\n"
     "DROP TABLE dbx;\n"
     "CREATE TEMP TABLE sx AS SELECT DISTINCT sqltext FROM xsql;\n"
     "DELETE FROM xsql;\n"
     "INSERT INTO xsql(sqlid,sqltext) "
        " SELECT NULL, sqltext FROM sx ORDER BY 2;\n"
     "DROP TABLE sx;\n"
     "COMMIT;\n"
     "PRAGMA page_size=1024;\n"
     "VACUUM;\n", 0, 0, 0);
  if( rc ) fatalError("cannot rebuild: %s", sqlite3_errmsg(db));
}

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"  --dbid N             Use only the database where dbid=N\n"
"  --export-db DIR      Write databases to files(s) in DIR. Works with --dbid\n"
"  --export-sql DIR     Write SQL to file(s) in DIR. Also works with --sqlid\n"
"  --help               Show this help text\n"
"  -q|--quiet           Reduced output\n"
"  --limit-mem N        Limit memory used by test SQLite instance to N bytes\n"
"  --limit-vdbe         Panic if any test runs for more than 100,000 cycles\n"
"  --load-sql ARGS...   Load SQL scripts fro files into SOURCE-DB\n"
"  --load-db ARGS...    Load template databases from files into SOURCE_DB\n"
"  -m TEXT              Add a description to the database\n"
"  --native-vfs         Use the native VFS for initially empty database files\n"
"  --native-malloc      Turn off MEMSYS3/5 and Lookaside\n"
"  --oss-fuzz           Enable OSS-FUZZ testing\n"
"  --prng-seed N        Seed value for the PRGN inside of SQLite\n"
"  --rebuild            Rebuild and vacuum the database file\n"
"  --result-trace       Show the results of each SQL command\n"
"  --sqlid N            Use only SQL where sqlid=N\n"
"  --timeout N          Abort if any single test needs more than N seconds\n"
"  -v|--verbose         Increased output.  Repeat for more output.\n"
  );
}

int main(int argc, char **argv){
  sqlite3_int64 iBegin;        /* Start time of this program */
  int quietFlag = 0;           /* True if --quiet or -q */
  int verboseFlag = 0;         /* True if --verbose or -v */
  char *zInsSql = 0;           /* SQL statement for --load-db or --load-sql */
  int iFirstInsArg = 0;        /* First argv[] to use for --load-db or --load-sql */
  sqlite3 *db = 0;             /* The open database connection */
  sqlite3_stmt *pStmt;         /* A prepared statement */
  int rc;                      /* Result code from SQLite interface calls */
  Blob *pSql;                  /* For looping over SQL scripts */
  Blob *pDb;                   /* For looping over template databases */
  int i;                       /* Loop index for the argv[] loop */
  int onlySqlid = -1;          /* --sqlid */
  int onlyDbid = -1;           /* --dbid */
  int nativeFlag = 0;          /* --native-vfs */
  int rebuildFlag = 0;         /* --rebuild */
  int vdbeLimitFlag = 0;       /* --limit-vdbe */
  int timeoutTest = 0;         /* undocumented --timeout-test flag */
  int runFlags = 0;            /* Flags sent to runSql() */
  char *zMsg = 0;              /* Add this message */
  int nSrcDb = 0;              /* Number of source databases */
  char **azSrcDb = 0;          /* Array of source database names */
  int iSrcDb;                  /* Loop over all source databases */
  int nTest = 0;               /* Total number of tests performed */
  char *zDbName = "";          /* Appreviated name of a source database */
  const char *zFailCode = 0;   /* Value of the TEST_FAILURE environment variable */
  int cellSzCkFlag = 0;        /* --cell-size-check */
  int sqlFuzz = 0;             /* True for SQL fuzz testing. False for DB fuzz */
  int iTimeout = 120;          /* Default 120-second timeout */
  int nMem = 0;                /* Memory limit */
  int nMemThisDb = 0;          /* Memory limit set by the CONFIG table */
  char *zExpDb = 0;            /* Write Databases to files in this directory */
  char *zExpSql = 0;           /* Write SQL to files in this directory */
  void *pHeap = 0;             /* Heap for use by SQLite */
  int ossFuzz = 0;             /* enable OSS-FUZZ testing */
  int ossFuzzThisDb = 0;       /* ossFuzz value for this particular database */
  int nativeMalloc = 0;        /* Turn off MEMSYS3/5 and lookaside if true */
  sqlite3_vfs *pDfltVfs;       /* The default VFS */


  iBegin = timeOfDay();
#ifdef __unix__
  signal(SIGALRM, timeoutHandler);
#endif
  g.zArgv0 = argv[0];

  zFailCode = getenv("TEST_FAILURE");
  pDfltVfs = sqlite3_vfs_find(0);
  inmemVfsRegister(1);
  for(i=1; i<argc; i++){
    const char *z = argv[i];
    if( z[0]=='-' ){
      z++;







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"  --dbid N             Use only the database where dbid=N\n"
"  --export-db DIR      Write databases to files(s) in DIR. Works with --dbid\n"
"  --export-sql DIR     Write SQL to file(s) in DIR. Also works with --sqlid\n"
"  --help               Show this help text\n"
"  -q|--quiet           Reduced output\n"
"  --limit-mem N        Limit memory used by test SQLite instance to N bytes\n"
"  --limit-vdbe         Panic if any test runs for more than 100,000 cycles\n"
"  --load-sql ARGS...   Load SQL scripts fron files into SOURCE-DB\n"
"  --load-db ARGS...    Load template databases from files into SOURCE_DB\n"
"  -m TEXT              Add a description to the database\n"
"  --native-vfs         Use the native VFS for initially empty database files\n"
"  --native-malloc      Turn off MEMSYS3/5 and Lookaside\n"
"  --oss-fuzz           Enable OSS-FUZZ testing\n"
"  --prng-seed N        Seed value for the PRGN inside of SQLite\n"
"  --rebuild            Rebuild and vacuum the database file\n"
"  --result-trace       Show the results of each SQL command\n"
"  --sqlid N            Use only SQL where sqlid=N\n"
"  --timeout N          Abort if any single test needs more than N seconds\n"
"  -v|--verbose         Increased output.  Repeat for more output.\n"
  );
}

int main(int argc, char **argv){
  sqlite3_int64 iBegin;        /* Start time of this program */
  int quietFlag = 0;           /* True if --quiet or -q */
  int verboseFlag = 0;         /* True if --verbose or -v */
  char *zInsSql = 0;           /* SQL statement for --load-db or --load-sql */
  int iFirstInsArg = 0;        /* First argv[] for --load-db or --load-sql */
  sqlite3 *db = 0;             /* The open database connection */
  sqlite3_stmt *pStmt;         /* A prepared statement */
  int rc;                      /* Result code from SQLite interface calls */
  Blob *pSql;                  /* For looping over SQL scripts */
  Blob *pDb;                   /* For looping over template databases */
  int i;                       /* Loop index for the argv[] loop */
  int onlySqlid = -1;          /* --sqlid */
  int onlyDbid = -1;           /* --dbid */
  int nativeFlag = 0;          /* --native-vfs */
  int rebuildFlag = 0;         /* --rebuild */
  int vdbeLimitFlag = 0;       /* --limit-vdbe */
  int timeoutTest = 0;         /* undocumented --timeout-test flag */
  int runFlags = 0;            /* Flags sent to runSql() */
  char *zMsg = 0;              /* Add this message */
  int nSrcDb = 0;              /* Number of source databases */
  char **azSrcDb = 0;          /* Array of source database names */
  int iSrcDb;                  /* Loop over all source databases */
  int nTest = 0;               /* Total number of tests performed */
  char *zDbName = "";          /* Appreviated name of a source database */
  const char *zFailCode = 0;   /* Value of the TEST_FAILURE env variable */
  int cellSzCkFlag = 0;        /* --cell-size-check */
  int sqlFuzz = 0;             /* True for SQL fuzz. False for DB fuzz */
  int iTimeout = 120;          /* Default 120-second timeout */
  int nMem = 0;                /* Memory limit */
  int nMemThisDb = 0;          /* Memory limit set by the CONFIG table */
  char *zExpDb = 0;            /* Write Databases to files in this directory */
  char *zExpSql = 0;           /* Write SQL to files in this directory */
  void *pHeap = 0;             /* Heap for use by SQLite */
  int ossFuzz = 0;             /* enable OSS-FUZZ testing */
  int ossFuzzThisDb = 0;       /* ossFuzz value for this particular database */
  int nativeMalloc = 0;        /* Turn off MEMSYS3/5 and lookaside if true */
  sqlite3_vfs *pDfltVfs;       /* The default VFS */
  int openFlags;               /* Flags for sqlite3_open_v2() */

  iBegin = timeOfDay();
#ifdef __unix__
  signal(SIGALRM, timeoutHandler);
#endif
  g.zArgv0 = argv[0];
  openFlags = SQLITE_OPEN_READONLY;
  zFailCode = getenv("TEST_FAILURE");
  pDfltVfs = sqlite3_vfs_find(0);
  inmemVfsRegister(1);
  for(i=1; i<argc; i++){
    const char *z = argv[i];
    if( z[0]=='-' ){
      z++;
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        nMem = integerValue(argv[++i]);
#endif
      }else
      if( strcmp(z,"limit-vdbe")==0 ){
        vdbeLimitFlag = 1;
      }else
      if( strcmp(z,"load-sql")==0 ){
        zInsSql = "INSERT INTO xsql(sqltext) VALUES(CAST(readfile(?1) AS text))";
        iFirstInsArg = i+1;

        break;
      }else
      if( strcmp(z,"load-db")==0 ){
        zInsSql = "INSERT INTO db(dbcontent) VALUES(readfile(?1))";
        iFirstInsArg = i+1;

        break;
      }else
      if( strcmp(z,"m")==0 ){
        if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
        zMsg = argv[++i];

      }else
      if( strcmp(z,"native-malloc")==0 ){
        nativeMalloc = 1;
      }else
      if( strcmp(z,"native-vfs")==0 ){
        nativeFlag = 1;
      }else
      if( strcmp(z,"oss-fuzz")==0 ){
        ossFuzz = 1;
      }else
      if( strcmp(z,"prng-seed")==0 ){
        if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
        g.uRandom = atoi(argv[++i]);
      }else
      if( strcmp(z,"quiet")==0 || strcmp(z,"q")==0 ){
        quietFlag = 1;
        verboseFlag = 0;
      }else
      if( strcmp(z,"rebuild")==0 ){
        rebuildFlag = 1;

      }else
      if( strcmp(z,"result-trace")==0 ){
        runFlags |= SQL_OUTPUT;
      }else
      if( strcmp(z,"sqlid")==0 ){
        if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
        onlySqlid = integerValue(argv[++i]);







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        nMem = integerValue(argv[++i]);
#endif
      }else
      if( strcmp(z,"limit-vdbe")==0 ){
        vdbeLimitFlag = 1;
      }else
      if( strcmp(z,"load-sql")==0 ){
        zInsSql = "INSERT INTO xsql(sqltext)VALUES(CAST(readfile(?1) AS text))";
        iFirstInsArg = i+1;
        openFlags = SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE;
        break;
      }else
      if( strcmp(z,"load-db")==0 ){
        zInsSql = "INSERT INTO db(dbcontent) VALUES(readfile(?1))";
        iFirstInsArg = i+1;
        openFlags = SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE;
        break;
      }else
      if( strcmp(z,"m")==0 ){
        if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
        zMsg = argv[++i];
        openFlags = SQLITE_OPEN_READWRITE|SQLITE_OPEN_CREATE;
      }else
      if( strcmp(z,"native-malloc")==0 ){
        nativeMalloc = 1;
      }else
      if( strcmp(z,"native-vfs")==0 ){
        nativeFlag = 1;
      }else
      if( strcmp(z,"oss-fuzz")==0 ){
        ossFuzz = 1;
      }else
      if( strcmp(z,"prng-seed")==0 ){
        if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
        g.uRandom = atoi(argv[++i]);
      }else
      if( strcmp(z,"quiet")==0 || strcmp(z,"q")==0 ){
        quietFlag = 1;
        verboseFlag = 0;
      }else
      if( strcmp(z,"rebuild")==0 ){
        rebuildFlag = 1;
        openFlags = SQLITE_OPEN_READWRITE;
      }else
      if( strcmp(z,"result-trace")==0 ){
        runFlags |= SQL_OUTPUT;
      }else
      if( strcmp(z,"sqlid")==0 ){
        if( i>=argc-1 ) fatalError("missing arguments on %s", argv[i]);
        onlySqlid = integerValue(argv[++i]);
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      fatalError("cannot import into more than one database");
    }
  }

  /* Process each source database separately */
  for(iSrcDb=0; iSrcDb<nSrcDb; iSrcDb++){
    rc = sqlite3_open_v2(azSrcDb[iSrcDb], &db,
                         SQLITE_OPEN_READWRITE, pDfltVfs->zName);
    if( rc ){
      fatalError("cannot open source database %s - %s",
      azSrcDb[iSrcDb], sqlite3_errmsg(db));
    }
    rc = sqlite3_exec(db,
       "CREATE TABLE IF NOT EXISTS db(\n"
       "  dbid INTEGER PRIMARY KEY, -- database id\n"







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      fatalError("cannot import into more than one database");
    }
  }

  /* Process each source database separately */
  for(iSrcDb=0; iSrcDb<nSrcDb; iSrcDb++){
    rc = sqlite3_open_v2(azSrcDb[iSrcDb], &db,
                         openFlags, pDfltVfs->zName);
    if( rc ){
      fatalError("cannot open source database %s - %s",
      azSrcDb[iSrcDb], sqlite3_errmsg(db));
    }
    rc = sqlite3_exec(db,
       "CREATE TABLE IF NOT EXISTS db(\n"
       "  dbid INTEGER PRIMARY KEY, -- database id\n"
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      if( rc ) fatalError("cannot change description: %s", sqlite3_errmsg(db));
    }
    ossFuzzThisDb = ossFuzz;

    /* If the CONFIG(name,value) table exists, read db-specific settings
    ** from that table */
    if( sqlite3_table_column_metadata(db,0,"config",0,0,0,0,0,0)==SQLITE_OK ){
      rc = sqlite3_prepare_v2(db, "SELECT name, value FROM config", -1, &pStmt, 0);

      if( rc ) fatalError("cannot prepare query of CONFIG table: %s",
                          sqlite3_errmsg(db));
      while( SQLITE_ROW==sqlite3_step(pStmt) ){
        const char *zName = (const char *)sqlite3_column_text(pStmt,0);
        if( zName==0 ) continue;
        if( strcmp(zName, "oss-fuzz")==0 ){
          ossFuzzThisDb = sqlite3_column_int(pStmt,1);







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      if( rc ) fatalError("cannot change description: %s", sqlite3_errmsg(db));
    }
    ossFuzzThisDb = ossFuzz;

    /* If the CONFIG(name,value) table exists, read db-specific settings
    ** from that table */
    if( sqlite3_table_column_metadata(db,0,"config",0,0,0,0,0,0)==SQLITE_OK ){
      rc = sqlite3_prepare_v2(db, "SELECT name, value FROM config",
                                  -1, &pStmt, 0);
      if( rc ) fatalError("cannot prepare query of CONFIG table: %s",
                          sqlite3_errmsg(db));
      while( SQLITE_ROW==sqlite3_step(pStmt) ){
        const char *zName = (const char *)sqlite3_column_text(pStmt,0);
        if( zName==0 ) continue;
        if( strcmp(zName, "oss-fuzz")==0 ){
          ossFuzzThisDb = sqlite3_column_int(pStmt,1);
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        sqlite3_bind_text(pStmt, 1, argv[i], -1, SQLITE_STATIC);
        sqlite3_step(pStmt);
        rc = sqlite3_reset(pStmt);
        if( rc ) fatalError("insert failed for %s", argv[i]);
      }
      sqlite3_finalize(pStmt);
      rc = sqlite3_exec(db, "COMMIT", 0, 0, 0);
      if( rc ) fatalError("cannot commit the transaction: %s", sqlite3_errmsg(db));

      rebuild_database(db);
      sqlite3_close(db);
      return 0;
    }
    rc = sqlite3_exec(db, "PRAGMA query_only=1;", 0, 0, 0);
    if( rc ) fatalError("cannot set database to query-only");
    if( zExpDb!=0 || zExpSql!=0 ){







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        sqlite3_bind_text(pStmt, 1, argv[i], -1, SQLITE_STATIC);
        sqlite3_step(pStmt);
        rc = sqlite3_reset(pStmt);
        if( rc ) fatalError("insert failed for %s", argv[i]);
      }
      sqlite3_finalize(pStmt);
      rc = sqlite3_exec(db, "COMMIT", 0, 0, 0);
      if( rc ) fatalError("cannot commit the transaction: %s",
                          sqlite3_errmsg(db));
      rebuild_database(db);
      sqlite3_close(db);
      return 0;
    }
    rc = sqlite3_exec(db, "PRAGMA query_only=1;", 0, 0, 0);
    if( rc ) fatalError("cannot set database to query-only");
    if( zExpDb!=0 || zExpSql!=0 ){
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            prevAmt = amt;
          }
        }
        createVFile("main.db", pDb->sz, pDb->a);
        sqlite3_randomness(0,0);
        if( ossFuzzThisDb ){
#ifndef SQLITE_OSS_FUZZ
          fatalError("--oss-fuzz not supported: recompile with -DSQLITE_OSS_FUZZ");

#else
          extern int LLVMFuzzerTestOneInput(const uint8_t*, size_t);
          LLVMFuzzerTestOneInput((const uint8_t*)pSql->a, (size_t)pSql->sz);
#endif
        }else{
          openFlags = SQLITE_OPEN_CREATE | SQLITE_OPEN_READWRITE;
          if( nativeFlag && pDb->sz==0 ){
            openFlags |= SQLITE_OPEN_MEMORY;
            zVfs = 0;
          }
          rc = sqlite3_open_v2("main.db", &db, openFlags, zVfs);
          if( rc ) fatalError("cannot open inmem database");
          sqlite3_limit(db, SQLITE_LIMIT_LENGTH, 100000000);
          sqlite3_limit(db, SQLITE_LIMIT_LIKE_PATTERN_LENGTH, 50);
          if( cellSzCkFlag ) runSql(db, "PRAGMA cell_size_check=ON", runFlags);
          setAlarm(iTimeout);
#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
          if( sqlFuzz || vdbeLimitFlag ){
            sqlite3_progress_handler(db, 100000, progressHandler, &vdbeLimitFlag);

          }
#endif
          do{
            runSql(db, (char*)pSql->a, runFlags);
          }while( timeoutTest );
          setAlarm(0);
          sqlite3_exec(db, "PRAGMA temp_store_directory=''", 0, 0, 0);







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>







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            prevAmt = amt;
          }
        }
        createVFile("main.db", pDb->sz, pDb->a);
        sqlite3_randomness(0,0);
        if( ossFuzzThisDb ){
#ifndef SQLITE_OSS_FUZZ
          fatalError("--oss-fuzz not supported: recompile"
                     " with -DSQLITE_OSS_FUZZ");
#else
          extern int LLVMFuzzerTestOneInput(const uint8_t*, size_t);
          LLVMFuzzerTestOneInput((const uint8_t*)pSql->a, (size_t)pSql->sz);
#endif
        }else{
          openFlags = SQLITE_OPEN_CREATE | SQLITE_OPEN_READWRITE;
          if( nativeFlag && pDb->sz==0 ){
            openFlags |= SQLITE_OPEN_MEMORY;
            zVfs = 0;
          }
          rc = sqlite3_open_v2("main.db", &db, openFlags, zVfs);
          if( rc ) fatalError("cannot open inmem database");
          sqlite3_limit(db, SQLITE_LIMIT_LENGTH, 100000000);
          sqlite3_limit(db, SQLITE_LIMIT_LIKE_PATTERN_LENGTH, 50);
          if( cellSzCkFlag ) runSql(db, "PRAGMA cell_size_check=ON", runFlags);
          setAlarm(iTimeout);
#ifndef SQLITE_OMIT_PROGRESS_CALLBACK
          if( sqlFuzz || vdbeLimitFlag ){
            sqlite3_progress_handler(db, 100000, progressHandler,
                                     &vdbeLimitFlag);
          }
#endif
          do{
            runSql(db, (char*)pSql->a, runFlags);
          }while( timeoutTest );
          setAlarm(0);
          sqlite3_exec(db, "PRAGMA temp_store_directory=''", 0, 0, 0);
Added test/fuzzdata6.db.

cannot compute difference between binary files