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Comment:Add the textkey and textrekey pragmas.
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SHA3-256: f829099d2558011d2f19ed3e91778b97e4ce0bdaa4a7cd6b0009f705554398ca
User & Date: drh 2018-10-11 18:28:08
Context
2018-10-11
18:45
Fix issues with the new textkey pragma from the previous check-in. (check-in: d1008b07 user: drh tags: apple-osx)
18:41
Add the textkey and textrekey pragmas. (check-in: f03164d4 user: drh tags: trunk)
18:28
Add the textkey and textrekey pragmas. (check-in: f829099d user: drh tags: apple-osx)
17:05
Merge compiler warning fixes and the codec enhancement from trunk. (check-in: f9fa58e1 user: drh tags: apple-osx)
Changes
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Changes to src/pragma.c. 

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      sqlite3VdbeMultiLoad(v, 1, "ss", db->aDb[i].zDbSName, zState);
    }
    break;
  }
#endif

#ifdef SQLITE_HAS_CODEC









  case PragTyp_KEY: {



    if( zRight ) sqlite3_key_v2(db, zDb, zRight, sqlite3Strlen30(zRight));
    break;


  }
  case PragTyp_REKEY: {
    if( zRight ) sqlite3_rekey_v2(db, zDb, zRight, sqlite3Strlen30(zRight));
    break;
  }
  case PragTyp_HEXKEY: {
    if( zRight ){
      u8 iByte;
      int i;
      char zKey[40];
      for(i=0, iByte=0; i<sizeof(zKey)*2 && sqlite3Isxdigit(zRight[i]); i++){
        iByte = (iByte<<4) + sqlite3HexToInt(zRight[i]);
        if( (i&1)!=0 ) zKey[i/2] = iByte;
      }
      if( (zLeft[3] & 0xf)==0xb ){
        sqlite3_key_v2(db, zDb, zKey, i/2);
      }else{
        sqlite3_rekey_v2(db, zDb, zKey, i/2);
      }
    }
    break;
  }








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      sqlite3VdbeMultiLoad(v, 1, "ss", db->aDb[i].zDbSName, zState);
    }
    break;
  }
#endif

#ifdef SQLITE_HAS_CODEC
  /* Pragma        iArg
  ** ----------   ------
  **  key           0
  **  rekey         1
  **  hexkey        2
  **  hexrekey      3
  **  textkey       4
  **  textrekey     5
  */
  case PragTyp_KEY: {
    if( zRight ){
      int n = pPragma->iArg<4 ? sqlite3Strlen30(zRight) : -1;
      if( (pPragma->iArg & 1)==0 ){
        sqlite3_key_v2(db, zDb, zRight, n);

      }else{
        sqlite3_rekey_v2(db, zDb, zRight, n);
      }


    break;
  }
  case PragTyp_HEXKEY: {
    if( zRight ){
      u8 iByte;
      int i;
      char zKey[40];
      for(i=0, iByte=0; i<sizeof(zKey)*2 && sqlite3Isxdigit(zRight[i]); i++){
        iByte = (iByte<<4) + sqlite3HexToInt(zRight[i]);
        if( (i&1)!=0 ) zKey[i/2] = iByte;
      }
      if( (pPragma->iArg & 1)==0 ){
        sqlite3_key_v2(db, zDb, zKey, i/2);
      }else{
        sqlite3_rekey_v2(db, zDb, zKey, i/2);
      }
    }
    break;
  }

Changes to src/pragma.h. 

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#define PragTyp_TABLE_INFO                    34
#define PragTyp_TEMP_STORE                    35
#define PragTyp_TEMP_STORE_DIRECTORY          36
#define PragTyp_THREADS                       37
#define PragTyp_WAL_AUTOCHECKPOINT            38
#define PragTyp_WAL_CHECKPOINT                39
#define PragTyp_ACTIVATE_EXTENSIONS           40
#define PragTyp_HEXKEY                        41
#define PragTyp_KEY                           42
#define PragTyp_REKEY                         43
#define PragTyp_LOCK_STATUS                   44
#define PragTyp_PARSER_TRACE                  45
#define PragTyp_STATS                         46

/* Property flags associated with various pragma. */
#define PragFlg_NeedSchema 0x01 /* Force schema load before running */
#define PragFlg_NoColumns  0x02 /* OP_ResultRow called with zero columns */
#define PragFlg_NoColumns1 0x04 /* zero columns if RHS argument is present */
#define PragFlg_ReadOnly   0x08 /* Read-only HEADER_VALUE */
#define PragFlg_Result0    0x10 /* Acts as query when no argument */
................................................................................
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 41, 2,
  /* iArg:      */ 0 },
#endif
#endif
#if defined(SQLITE_HAS_CODEC)
 {/* zName:     */ "hexkey",
  /* ePragTyp:  */ PragTyp_HEXKEY,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
 {/* zName:     */ "hexrekey",
  /* ePragTyp:  */ PragTyp_HEXKEY,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
#if !defined(SQLITE_OMIT_CHECK)
 {/* zName:     */ "ignore_check_constraints",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
................................................................................
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_RecTriggers },
#endif
#if defined(SQLITE_HAS_CODEC)
 {/* zName:     */ "rekey",
  /* ePragTyp:  */ PragTyp_REKEY,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
 {/* zName:     */ "reverse_unordered_selects",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_ReverseOrder },
................................................................................
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
 {/* zName:     */ "temp_store_directory",
  /* ePragTyp:  */ PragTyp_TEMP_STORE_DIRECTORY,
  /* ePragFlg:  */ PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },












#endif
 {/* zName:     */ "threads",
  /* ePragTyp:  */ PragTyp_THREADS,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
................................................................................
 {/* zName:     */ "writable_schema",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_WriteSchema },
#endif
};
/* Number of pragmas: 62 on by default, 79 total. */








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#define PragTyp_TABLE_INFO                    34
#define PragTyp_TEMP_STORE                    35
#define PragTyp_TEMP_STORE_DIRECTORY          36
#define PragTyp_THREADS                       37
#define PragTyp_WAL_AUTOCHECKPOINT            38
#define PragTyp_WAL_CHECKPOINT                39
#define PragTyp_ACTIVATE_EXTENSIONS           40

#define PragTyp_KEY                           41

#define PragTyp_LOCK_STATUS                   42
#define PragTyp_PARSER_TRACE                  43
#define PragTyp_STATS                         44

/* Property flags associated with various pragma. */
#define PragFlg_NeedSchema 0x01 /* Force schema load before running */
#define PragFlg_NoColumns  0x02 /* OP_ResultRow called with zero columns */
#define PragFlg_NoColumns1 0x04 /* zero columns if RHS argument is present */
#define PragFlg_ReadOnly   0x08 /* Read-only HEADER_VALUE */
#define PragFlg_Result0    0x10 /* Acts as query when no argument */
................................................................................
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 41, 2,
  /* iArg:      */ 0 },
#endif
#endif
#if defined(SQLITE_HAS_CODEC)
 {/* zName:     */ "hexkey",
  /* ePragTyp:  */ PragTyp_KEY,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 2 },
 {/* zName:     */ "hexrekey",
  /* ePragTyp:  */ PragTyp_KEY,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 3 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
#if !defined(SQLITE_OMIT_CHECK)
 {/* zName:     */ "ignore_check_constraints",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
................................................................................
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_RecTriggers },
#endif
#if defined(SQLITE_HAS_CODEC)
 {/* zName:     */ "rekey",
  /* ePragTyp:  */ PragTyp_KEY,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 1 },
#endif
#if !defined(SQLITE_OMIT_FLAG_PRAGMAS)
 {/* zName:     */ "reverse_unordered_selects",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_ReverseOrder },
................................................................................
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
 {/* zName:     */ "temp_store_directory",
  /* ePragTyp:  */ PragTyp_TEMP_STORE_DIRECTORY,
  /* ePragFlg:  */ PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#endif
#if defined(SQLITE_HAS_CODEC)
 {/* zName:     */ "textkey",
  /* ePragTyp:  */ PragTyp_KEY,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 4 },
 {/* zName:     */ "textrekey",
  /* ePragTyp:  */ PragTyp_KEY,
  /* ePragFlg:  */ 0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 5 },
#endif
 {/* zName:     */ "threads",
  /* ePragTyp:  */ PragTyp_THREADS,
  /* ePragFlg:  */ PragFlg_Result0,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ 0 },
#if !defined(SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS)
................................................................................
 {/* zName:     */ "writable_schema",
  /* ePragTyp:  */ PragTyp_FLAG,
  /* ePragFlg:  */ PragFlg_Result0|PragFlg_NoColumns1,
  /* ColNames:  */ 0, 0,
  /* iArg:      */ SQLITE_WriteSchema },
#endif
};
/* Number of pragmas: 62 on by default, 81 total. */

Changes to tool/mkpragmatab.tcl. 

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  NAME: lock_status
  FLAG: Result0
  COLS: database status
  IF:   defined(SQLITE_DEBUG) || defined(SQLITE_TEST)

  NAME: key


  IF:   defined(SQLITE_HAS_CODEC)

  NAME: rekey


  IF:   defined(SQLITE_HAS_CODEC)

  NAME: hexkey


  IF:   defined(SQLITE_HAS_CODEC)

  NAME: hexrekey
  TYPE: HEXKEY











  IF:   defined(SQLITE_HAS_CODEC)

  NAME: activate_extensions
  IF:   defined(SQLITE_HAS_CODEC) || defined(SQLITE_ENABLE_CEROD)

  NAME: soft_heap_limit
  FLAG: Result0








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  NAME: lock_status
  FLAG: Result0
  COLS: database status
  IF:   defined(SQLITE_DEBUG) || defined(SQLITE_TEST)

  NAME: key
  TYPE: KEY
  ARG:  0
  IF:   defined(SQLITE_HAS_CODEC)

  NAME: rekey
  TYPE: KEY
  ARG:  1
  IF:   defined(SQLITE_HAS_CODEC)

  NAME: hexkey
  TYPE: KEY
  ARG:  2
  IF:   defined(SQLITE_HAS_CODEC)

  NAME: hexrekey
  TYPE: KEY
  ARG:  3
  IF:   defined(SQLITE_HAS_CODEC)

  NAME: textkey
  TYPE: KEY
  ARG:  4
  IF:   defined(SQLITE_HAS_CODEC)

  NAME: textrekey
  TYPE: KEY
  ARG:  5
  IF:   defined(SQLITE_HAS_CODEC)

  NAME: activate_extensions
  IF:   defined(SQLITE_HAS_CODEC) || defined(SQLITE_ENABLE_CEROD)

  NAME: soft_heap_limit
  FLAG: Result0

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