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Overview
Comment:Transform OP_HexBlob and OP_String8 to OP_Blob and OP_String the first time they are executed. (CVS 1492)
Downloads: Tarball | ZIP archive | SQL archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: 3225de8902b0e7e60c4d9f3a5ef51bc74f57d364
User & Date: danielk1977 2004-05-29 11:24:50
Context
2004-05-29
21:46
A file format change for btree.c makes it between 10 and 20% faster. (CVS 1493) (check-in: cbcaece7 user: drh tags: trunk)
11:24
Transform OP_HexBlob and OP_String8 to OP_Blob and OP_String the first time they are executed. (CVS 1492) (check-in: 3225de89 user: danielk1977 tags: trunk)
10:43
Ensure vacuum handles table names with spaces in them. (CVS 1491) (check-in: 0a6689be user: danielk1977 tags: trunk)
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to src/build.c. 

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**     DROP INDEX
**     creating ID lists
**     BEGIN TRANSACTION
**     COMMIT
**     ROLLBACK
**     PRAGMA
**
** $Id: build.c,v 1.199 2004/05/29 10:23:19 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

/*
** This routine is called when a new SQL statement is beginning to
** be parsed.  Check to see if the schema for the database needs
................................................................................
      sqlite3VdbeAddOp(v, OP_SetCookie, iDb, 1);
      sqlite3VdbeAddOp(v, OP_Integer, db->enc, 0);
      sqlite3VdbeAddOp(v, OP_SetCookie, iDb, 4);
    }
    sqlite3OpenMasterTable(v, iDb);
    sqlite3VdbeAddOp(v, OP_NewRecno, 0, 0);
    sqlite3VdbeAddOp(v, OP_Dup, 0, 0);
    sqlite3VdbeAddOp(v, OP_String, 0, 0);
    sqlite3VdbeAddOp(v, OP_PutIntKey, 0, 0);
  }
}

/*
** Add a new column to the table currently being constructed.
**
................................................................................
      sqlite3VdbeOp3(v, OP_CreateTable, 0, p->iDb, (char*)&p->tnum, P3_POINTER);
    }else{
      /* A view */
      sqlite3VdbeAddOp(v, OP_Integer, 0, 0);
    }
    p->tnum = 0;
    sqlite3VdbeAddOp(v, OP_Pull, 1, 0);
    sqlite3VdbeOp3(v, OP_String, 0, 0, p->pSelect==0?"table":"view", P3_STATIC);
    sqlite3VdbeOp3(v, OP_String, 0, 0, p->zName, 0);
    sqlite3VdbeOp3(v, OP_String, 0, 0, p->zName, 0);
    sqlite3VdbeAddOp(v, OP_Dup, 4, 0);
    if( pSelect ){
      char *z = createTableStmt(p);
      n = z ? strlen(z) : 0;
      sqlite3VdbeAddOp(v, OP_String, 0, 0);
      sqlite3VdbeChangeP3(v, -1, z, n);
      sqliteFree(z);
    }else{
      if( p->pSelect ){
        sqlite3VdbeOp3(v, OP_String, 0, 0, "CREATE VIEW ", P3_STATIC);
      }else{
        sqlite3VdbeOp3(v, OP_String, 0, 0, "CREATE TABLE ", P3_STATIC);
      }
      assert( pEnd!=0 );
      n = Addr(pEnd->z) - Addr(pParse->sNameToken.z) + 1;
      sqlite3VdbeAddOp(v, OP_String, 0, 0);
      sqlite3VdbeChangeP3(v, -1, pParse->sNameToken.z, n);
      sqlite3VdbeAddOp(v, OP_Concat, 2, 0);
    }
    sqlite3VdbeOp3(v, OP_MakeRecord, 5, 0, "tttit", P3_STATIC);
    sqlite3VdbeAddOp(v, OP_PutIntKey, 0, 0);
    if( !p->iDb ){
      sqlite3ChangeCookie(db, v, p->iDb);
................................................................................
  /* Generate code to remove the table from the master table
  ** on disk.
  */
  v = sqlite3GetVdbe(pParse);
  if( v ){
    static VdbeOpList dropTable[] = {
      { OP_Rewind,     0, ADDR(10), 0},
      { OP_String,     0, 0,        0}, /* 1 */
      { OP_MemStore,   1, 1,        0},
      { OP_MemLoad,    1, 0,        0}, /* 3 */
      { OP_Column,     0, 2,        0},
      { OP_Ne,         0, ADDR(9),  0},
      { OP_Delete,     0, 0,        0},
      { OP_Rewind,     0, ADDR(10), 0},
      { OP_Goto,       0, ADDR(3),  0},
................................................................................
    v = sqlite3GetVdbe(pParse);
    if( v==0 ) goto exit_create_index;
    if( pTblName!=0 ){
      sqlite3BeginWriteOperation(pParse, 0, iDb);
      sqlite3OpenMasterTable(v, iDb);
    }
    sqlite3VdbeAddOp(v, OP_NewRecno, 0, 0);
    sqlite3VdbeOp3(v, OP_String, 0, 0, "index", P3_STATIC);
    sqlite3VdbeOp3(v, OP_String, 0, 0, pIndex->zName, 0);
    sqlite3VdbeOp3(v, OP_String, 0, 0, pTab->zName, 0);
    sqlite3VdbeOp3(v, OP_CreateIndex, 0, iDb,(char*)&pIndex->tnum,P3_POINTER);
    pIndex->tnum = 0;
    if( pTblName ){
      sqlite3VdbeCode(v,
          OP_Dup,       0,      0,
          OP_Integer,   iDb,    0,
      0);
      sqlite3VdbeOp3(v, OP_OpenWrite, 1, 0,
                     (char*)&pIndex->keyInfo, P3_KEYINFO);
    }
    sqlite3VdbeAddOp(v, OP_String, 0, 0);
    if( pStart && pEnd ){
      sqlite3VdbeChangeP3(v, -1, "CREATE INDEX ", P3_STATIC);
      sqlite3VdbeAddOp(v, OP_String, 0, 0);
      n = Addr(pEnd->z) - Addr(pName->z) + 1;
      sqlite3VdbeChangeP3(v, -1, pName->z, n);
      sqlite3VdbeAddOp(v, OP_Concat, 2, 0);
    }
    sqlite3VdbeOp3(v, OP_MakeRecord, 5, 0, "tttit", P3_STATIC);
    sqlite3VdbeAddOp(v, OP_PutIntKey, 0, 0);
    if( pTblName ){
................................................................................
#endif

  /* Generate code to remove the index and from the master table */
  v = sqlite3GetVdbe(pParse);
  if( v ){
    static VdbeOpList dropIndex[] = {
      { OP_Rewind,     0, ADDR(9), 0}, 
      { OP_String,     0, 0,       0}, /* 1 */
      { OP_MemStore,   1, 1,       0},
      { OP_MemLoad,    1, 0,       0}, /* 3 */
      { OP_Column,     0, 1,       0},
      { OP_Eq,         0, ADDR(8), 0},
      { OP_Next,       0, ADDR(3), 0},
      { OP_Goto,       0, ADDR(9), 0},
      { OP_Delete,     0, 0,       0}, /* 8 */








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**     DROP INDEX
**     creating ID lists
**     BEGIN TRANSACTION
**     COMMIT
**     ROLLBACK
**     PRAGMA
**
** $Id: build.c,v 1.200 2004/05/29 11:24:50 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

/*
** This routine is called when a new SQL statement is beginning to
** be parsed.  Check to see if the schema for the database needs
................................................................................
      sqlite3VdbeAddOp(v, OP_SetCookie, iDb, 1);
      sqlite3VdbeAddOp(v, OP_Integer, db->enc, 0);
      sqlite3VdbeAddOp(v, OP_SetCookie, iDb, 4);
    }
    sqlite3OpenMasterTable(v, iDb);
    sqlite3VdbeAddOp(v, OP_NewRecno, 0, 0);
    sqlite3VdbeAddOp(v, OP_Dup, 0, 0);
    sqlite3VdbeAddOp(v, OP_String8, 0, 0);
    sqlite3VdbeAddOp(v, OP_PutIntKey, 0, 0);
  }
}

/*
** Add a new column to the table currently being constructed.
**
................................................................................
      sqlite3VdbeOp3(v, OP_CreateTable, 0, p->iDb, (char*)&p->tnum, P3_POINTER);
    }else{
      /* A view */
      sqlite3VdbeAddOp(v, OP_Integer, 0, 0);
    }
    p->tnum = 0;
    sqlite3VdbeAddOp(v, OP_Pull, 1, 0);
    sqlite3VdbeOp3(v, OP_String8, 0, 0, p->pSelect==0?"table":"view", P3_STATIC);
    sqlite3VdbeOp3(v, OP_String8, 0, 0, p->zName, 0);
    sqlite3VdbeOp3(v, OP_String8, 0, 0, p->zName, 0);
    sqlite3VdbeAddOp(v, OP_Dup, 4, 0);
    if( pSelect ){
      char *z = createTableStmt(p);
      n = z ? strlen(z) : 0;
      sqlite3VdbeAddOp(v, OP_String8, 0, 0);
      sqlite3VdbeChangeP3(v, -1, z, n);
      sqliteFree(z);
    }else{
      if( p->pSelect ){
        sqlite3VdbeOp3(v, OP_String8, 0, 0, "CREATE VIEW ", P3_STATIC);
      }else{
        sqlite3VdbeOp3(v, OP_String8, 0, 0, "CREATE TABLE ", P3_STATIC);
      }
      assert( pEnd!=0 );
      n = Addr(pEnd->z) - Addr(pParse->sNameToken.z) + 1;
      sqlite3VdbeAddOp(v, OP_String8, 0, 0);
      sqlite3VdbeChangeP3(v, -1, pParse->sNameToken.z, n);
      sqlite3VdbeAddOp(v, OP_Concat, 2, 0);
    }
    sqlite3VdbeOp3(v, OP_MakeRecord, 5, 0, "tttit", P3_STATIC);
    sqlite3VdbeAddOp(v, OP_PutIntKey, 0, 0);
    if( !p->iDb ){
      sqlite3ChangeCookie(db, v, p->iDb);
................................................................................
  /* Generate code to remove the table from the master table
  ** on disk.
  */
  v = sqlite3GetVdbe(pParse);
  if( v ){
    static VdbeOpList dropTable[] = {
      { OP_Rewind,     0, ADDR(10), 0},
      { OP_String8,     0, 0,        0}, /* 1 */
      { OP_MemStore,   1, 1,        0},
      { OP_MemLoad,    1, 0,        0}, /* 3 */
      { OP_Column,     0, 2,        0},
      { OP_Ne,         0, ADDR(9),  0},
      { OP_Delete,     0, 0,        0},
      { OP_Rewind,     0, ADDR(10), 0},
      { OP_Goto,       0, ADDR(3),  0},
................................................................................
    v = sqlite3GetVdbe(pParse);
    if( v==0 ) goto exit_create_index;
    if( pTblName!=0 ){
      sqlite3BeginWriteOperation(pParse, 0, iDb);
      sqlite3OpenMasterTable(v, iDb);
    }
    sqlite3VdbeAddOp(v, OP_NewRecno, 0, 0);
    sqlite3VdbeOp3(v, OP_String8, 0, 0, "index", P3_STATIC);
    sqlite3VdbeOp3(v, OP_String8, 0, 0, pIndex->zName, 0);
    sqlite3VdbeOp3(v, OP_String8, 0, 0, pTab->zName, 0);
    sqlite3VdbeOp3(v, OP_CreateIndex, 0, iDb,(char*)&pIndex->tnum,P3_POINTER);
    pIndex->tnum = 0;
    if( pTblName ){
      sqlite3VdbeCode(v,
          OP_Dup,       0,      0,
          OP_Integer,   iDb,    0,
      0);
      sqlite3VdbeOp3(v, OP_OpenWrite, 1, 0,
                     (char*)&pIndex->keyInfo, P3_KEYINFO);
    }
    sqlite3VdbeAddOp(v, OP_String8, 0, 0);
    if( pStart && pEnd ){
      sqlite3VdbeChangeP3(v, -1, "CREATE INDEX ", P3_STATIC);
      sqlite3VdbeAddOp(v, OP_String8, 0, 0);
      n = Addr(pEnd->z) - Addr(pName->z) + 1;
      sqlite3VdbeChangeP3(v, -1, pName->z, n);
      sqlite3VdbeAddOp(v, OP_Concat, 2, 0);
    }
    sqlite3VdbeOp3(v, OP_MakeRecord, 5, 0, "tttit", P3_STATIC);
    sqlite3VdbeAddOp(v, OP_PutIntKey, 0, 0);
    if( pTblName ){
................................................................................
#endif

  /* Generate code to remove the index and from the master table */
  v = sqlite3GetVdbe(pParse);
  if( v ){
    static VdbeOpList dropIndex[] = {
      { OP_Rewind,     0, ADDR(9), 0}, 
      { OP_String8,     0, 0,       0}, /* 1 */
      { OP_MemStore,   1, 1,       0},
      { OP_MemLoad,    1, 0,       0}, /* 3 */
      { OP_Column,     0, 1,       0},
      { OP_Eq,         0, ADDR(8), 0},
      { OP_Next,       0, ADDR(3), 0},
      { OP_Goto,       0, ADDR(9), 0},
      { OP_Delete,     0, 0,       0}, /* 8 */

Changes to src/expr.c. 

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**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains routines used for analyzing expressions and
** for generating VDBE code that evaluates expressions in SQLite.
**
** $Id: expr.c,v 1.131 2004/05/28 08:21:06 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

char const *sqlite3AffinityString(char affinity){
  switch( affinity ){
    case SQLITE_AFF_INTEGER: return "i";
................................................................................
          if( sqlite3ExprCheck(pParse, pE2, 0, 0) ){
            return 1;
          }

          /* Evaluate the expression and insert it into the temp table */
          sqlite3ExprCode(pParse, pE2);
          sqlite3VdbeOp3(v, OP_MakeKey, 1, 0, affStr, P3_STATIC);
          sqlite3VdbeAddOp(v, OP_String, 0, 0);
          sqlite3VdbeAddOp(v, OP_PutStrKey, pExpr->iTable, 0);
        }
      }
      break;
    }

    case TK_SELECT: {
................................................................................
    case TK_BITAND:   op = OP_BitAnd;   break;
    case TK_BITOR:    op = OP_BitOr;    break;
    case TK_BITNOT:   op = OP_BitNot;   break;
    case TK_LSHIFT:   op = OP_ShiftLeft;  break;
    case TK_RSHIFT:   op = OP_ShiftRight; break;
    case TK_REM:      op = OP_Remainder;  break;
    case TK_FLOAT:    op = OP_Real;       break;
    case TK_STRING:   op = OP_String;     break;
    case TK_BLOB:     op = OP_HexBlob;    break;
    default: break;
  }
  switch( pExpr->op ){
    case TK_COLUMN: {
      if( pParse->useAgg ){
        sqlite3VdbeAddOp(v, OP_AggGet, 0, pExpr->iAgg);
................................................................................
    }
    case TK_BLOB: {
      sqlite3VdbeOp3(v, op, 0, 0, pExpr->token.z+1, pExpr->token.n-1);
      sqlite3VdbeDequoteP3(v, -1);
      break;
    }
    case TK_NULL: {
      sqlite3VdbeAddOp(v, OP_String, 0, 0);
      break;
    }
    case TK_VARIABLE: {
      sqlite3VdbeAddOp(v, OP_Variable, pExpr->iTable, 0);
      break;
    }
    case TK_LT:
................................................................................
      /* Code the <expr> from "<expr> IN (...)". The temporary table
      ** pExpr->iTable contains the values that make up the (...) set.
      */
      sqlite3ExprCode(pParse, pExpr->pLeft);
      addr = sqlite3VdbeCurrentAddr(v);
      sqlite3VdbeAddOp(v, OP_NotNull, -1, addr+4);            /* addr + 0 */
      sqlite3VdbeAddOp(v, OP_Pop, 2, 0);
      sqlite3VdbeAddOp(v, OP_String, 0, 0);
      sqlite3VdbeAddOp(v, OP_Goto, 0, addr+7);
      sqlite3VdbeOp3(v, OP_MakeKey, 1, 0, affStr, P3_STATIC); /* addr + 4 */
      sqlite3VdbeAddOp(v, OP_Found, pExpr->iTable, addr+7);
      sqlite3VdbeAddOp(v, OP_AddImm, -1, 0);                  /* addr + 6 */

      break;
    }
................................................................................
      }
      if( pExpr->pLeft ){
        sqlite3VdbeAddOp(v, OP_Pop, 1, 0);
      }
      if( pExpr->pRight ){
        sqlite3ExprCode(pParse, pExpr->pRight);
      }else{
        sqlite3VdbeAddOp(v, OP_String, 0, 0);
      }
      sqlite3VdbeResolveLabel(v, expr_end_label);
      break;
    }
    case TK_RAISE: {
      if( !pParse->trigStack ){
        sqlite3ErrorMsg(pParse,








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**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains routines used for analyzing expressions and
** for generating VDBE code that evaluates expressions in SQLite.
**
** $Id: expr.c,v 1.132 2004/05/29 11:24:50 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

char const *sqlite3AffinityString(char affinity){
  switch( affinity ){
    case SQLITE_AFF_INTEGER: return "i";
................................................................................
          if( sqlite3ExprCheck(pParse, pE2, 0, 0) ){
            return 1;
          }

          /* Evaluate the expression and insert it into the temp table */
          sqlite3ExprCode(pParse, pE2);
          sqlite3VdbeOp3(v, OP_MakeKey, 1, 0, affStr, P3_STATIC);
          sqlite3VdbeAddOp(v, OP_String8, 0, 0);
          sqlite3VdbeAddOp(v, OP_PutStrKey, pExpr->iTable, 0);
        }
      }
      break;
    }

    case TK_SELECT: {
................................................................................
    case TK_BITAND:   op = OP_BitAnd;   break;
    case TK_BITOR:    op = OP_BitOr;    break;
    case TK_BITNOT:   op = OP_BitNot;   break;
    case TK_LSHIFT:   op = OP_ShiftLeft;  break;
    case TK_RSHIFT:   op = OP_ShiftRight; break;
    case TK_REM:      op = OP_Remainder;  break;
    case TK_FLOAT:    op = OP_Real;       break;
    case TK_STRING:   op = OP_String8;     break;
    case TK_BLOB:     op = OP_HexBlob;    break;
    default: break;
  }
  switch( pExpr->op ){
    case TK_COLUMN: {
      if( pParse->useAgg ){
        sqlite3VdbeAddOp(v, OP_AggGet, 0, pExpr->iAgg);
................................................................................
    }
    case TK_BLOB: {
      sqlite3VdbeOp3(v, op, 0, 0, pExpr->token.z+1, pExpr->token.n-1);
      sqlite3VdbeDequoteP3(v, -1);
      break;
    }
    case TK_NULL: {
      sqlite3VdbeAddOp(v, OP_String8, 0, 0);
      break;
    }
    case TK_VARIABLE: {
      sqlite3VdbeAddOp(v, OP_Variable, pExpr->iTable, 0);
      break;
    }
    case TK_LT:
................................................................................
      /* Code the <expr> from "<expr> IN (...)". The temporary table
      ** pExpr->iTable contains the values that make up the (...) set.
      */
      sqlite3ExprCode(pParse, pExpr->pLeft);
      addr = sqlite3VdbeCurrentAddr(v);
      sqlite3VdbeAddOp(v, OP_NotNull, -1, addr+4);            /* addr + 0 */
      sqlite3VdbeAddOp(v, OP_Pop, 2, 0);
      sqlite3VdbeAddOp(v, OP_String8, 0, 0);
      sqlite3VdbeAddOp(v, OP_Goto, 0, addr+7);
      sqlite3VdbeOp3(v, OP_MakeKey, 1, 0, affStr, P3_STATIC); /* addr + 4 */
      sqlite3VdbeAddOp(v, OP_Found, pExpr->iTable, addr+7);
      sqlite3VdbeAddOp(v, OP_AddImm, -1, 0);                  /* addr + 6 */

      break;
    }
................................................................................
      }
      if( pExpr->pLeft ){
        sqlite3VdbeAddOp(v, OP_Pop, 1, 0);
      }
      if( pExpr->pRight ){
        sqlite3ExprCode(pParse, pExpr->pRight);
      }else{
        sqlite3VdbeAddOp(v, OP_String8, 0, 0);
      }
      sqlite3VdbeResolveLabel(v, expr_end_label);
      break;
    }
    case TK_RAISE: {
      if( !pParse->trigStack ){
        sqlite3ErrorMsg(pParse,

Changes to src/insert.c. 

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784

**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains C code routines that are called by the parser
** to handle INSERT statements in SQLite.
**
** $Id: insert.c,v 1.107 2004/05/26 10:11:06 danielk1977 Exp $
*/
#include "sqliteInt.h"

/*
** Set P3 of the most recently inserted opcode to a column affinity
** string for index pIdx. A column affinity string has one character
** for each column in the table, according to the affinity of the column:
................................................................................
        j = i;
      }else{
        for(j=0; j<pColumn->nId; j++){
          if( pColumn->a[j].idx==i ) break;
        }
      }
      if( pColumn && j>=pColumn->nId ){
        sqlite3VdbeOp3(v, OP_String, 0, 0, pTab->aCol[i].zDflt, P3_STATIC);
      }else if( useTempTable ){
        sqlite3VdbeAddOp(v, OP_Column, srcTab, j); 
      }else if( pSelect ){
        sqlite3VdbeAddOp(v, OP_Dup, nColumn-j-1, 1);
      }else{
        sqlite3ExprCode(pParse, pList->a[j].pExpr);
      }
................................................................................
    */
    for(i=0; i<pTab->nCol; i++){
      if( i==pTab->iPKey ){
        /* The value of the INTEGER PRIMARY KEY column is always a NULL.
        ** Whenever this column is read, the record number will be substituted
        ** in its place.  So will fill this column with a NULL to avoid
        ** taking up data space with information that will never be used. */
        sqlite3VdbeAddOp(v, OP_String, 0, 0);
        continue;
      }
      if( pColumn==0 ){
        j = i;
      }else{
        for(j=0; j<pColumn->nId; j++){
          if( pColumn->a[j].idx==i ) break;
        }
      }
      if( pColumn && j>=pColumn->nId ){
        sqlite3VdbeOp3(v, OP_String, 0, 0, pTab->aCol[i].zDflt, P3_STATIC);
      }else if( useTempTable ){
        sqlite3VdbeAddOp(v, OP_Column, srcTab, j); 
      }else if( pSelect ){
        sqlite3VdbeAddOp(v, OP_Dup, i+nColumn-j, 1);
      }else{
        sqlite3ExprCode(pParse, pList->a[j].pExpr);
      }
................................................................................
      }
      case OE_Ignore: {
        sqlite3VdbeAddOp(v, OP_Pop, nCol+1+hasTwoRecnos, 0);
        sqlite3VdbeAddOp(v, OP_Goto, 0, ignoreDest);
        break;
      }
      case OE_Replace: {
        sqlite3VdbeOp3(v, OP_String, 0, 0, pTab->aCol[i].zDflt, P3_STATIC);
        sqlite3VdbeAddOp(v, OP_Push, nCol-i, 0);
        break;
      }
      default: assert(0);
    }
    sqlite3VdbeChangeP2(v, addr, sqlite3VdbeCurrentAddr(v));
  }








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8
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...
770
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777
778
779
780
781
782
783
784

**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains C code routines that are called by the parser
** to handle INSERT statements in SQLite.
**
** $Id: insert.c,v 1.108 2004/05/29 11:24:50 danielk1977 Exp $
*/
#include "sqliteInt.h"

/*
** Set P3 of the most recently inserted opcode to a column affinity
** string for index pIdx. A column affinity string has one character
** for each column in the table, according to the affinity of the column:
................................................................................
        j = i;
      }else{
        for(j=0; j<pColumn->nId; j++){
          if( pColumn->a[j].idx==i ) break;
        }
      }
      if( pColumn && j>=pColumn->nId ){
        sqlite3VdbeOp3(v, OP_String8, 0, 0, pTab->aCol[i].zDflt, P3_STATIC);
      }else if( useTempTable ){
        sqlite3VdbeAddOp(v, OP_Column, srcTab, j); 
      }else if( pSelect ){
        sqlite3VdbeAddOp(v, OP_Dup, nColumn-j-1, 1);
      }else{
        sqlite3ExprCode(pParse, pList->a[j].pExpr);
      }
................................................................................
    */
    for(i=0; i<pTab->nCol; i++){
      if( i==pTab->iPKey ){
        /* The value of the INTEGER PRIMARY KEY column is always a NULL.
        ** Whenever this column is read, the record number will be substituted
        ** in its place.  So will fill this column with a NULL to avoid
        ** taking up data space with information that will never be used. */
        sqlite3VdbeAddOp(v, OP_String8, 0, 0);
        continue;
      }
      if( pColumn==0 ){
        j = i;
      }else{
        for(j=0; j<pColumn->nId; j++){
          if( pColumn->a[j].idx==i ) break;
        }
      }
      if( pColumn && j>=pColumn->nId ){
        sqlite3VdbeOp3(v, OP_String8, 0, 0, pTab->aCol[i].zDflt, P3_STATIC);
      }else if( useTempTable ){
        sqlite3VdbeAddOp(v, OP_Column, srcTab, j); 
      }else if( pSelect ){
        sqlite3VdbeAddOp(v, OP_Dup, i+nColumn-j, 1);
      }else{
        sqlite3ExprCode(pParse, pList->a[j].pExpr);
      }
................................................................................
      }
      case OE_Ignore: {
        sqlite3VdbeAddOp(v, OP_Pop, nCol+1+hasTwoRecnos, 0);
        sqlite3VdbeAddOp(v, OP_Goto, 0, ignoreDest);
        break;
      }
      case OE_Replace: {
        sqlite3VdbeOp3(v, OP_String8, 0, 0, pTab->aCol[i].zDflt, P3_STATIC);
        sqlite3VdbeAddOp(v, OP_Push, nCol-i, 0);
        break;
      }
      default: assert(0);
    }
    sqlite3VdbeChangeP2(v, addr, sqlite3VdbeCurrentAddr(v));
  }

Changes to src/pragma.c. 

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**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains code used to implement the PRAGMA command.
**
** $Id: pragma.c,v 1.33 2004/05/28 16:00:22 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

/*
** Interpret the given string as a boolean value.
*/
................................................................................
      sqlite3VdbeSetColName(v, 2, "type", P3_STATIC);
      sqlite3VdbeSetColName(v, 3, "notnull", P3_STATIC);
      sqlite3VdbeSetColName(v, 4, "dflt_value", P3_STATIC);
      sqlite3VdbeSetColName(v, 5, "pk", P3_STATIC);
      sqlite3ViewGetColumnNames(pParse, pTab);
      for(i=0; i<pTab->nCol; i++){
        sqlite3VdbeAddOp(v, OP_Integer, i, 0);
        sqlite3VdbeOp3(v, OP_String, 0, 0, pTab->aCol[i].zName, 0);
        sqlite3VdbeOp3(v, OP_String, 0, 0,
           pTab->aCol[i].zType ? pTab->aCol[i].zType : "numeric", 0);
        sqlite3VdbeAddOp(v, OP_Integer, pTab->aCol[i].notNull, 0);
        sqlite3VdbeOp3(v, OP_String, 0, 0,
           pTab->aCol[i].zDflt, P3_STATIC);
        sqlite3VdbeAddOp(v, OP_Integer, pTab->aCol[i].isPrimKey, 0);
        sqlite3VdbeAddOp(v, OP_Callback, 6, 0);
      }
    }
  }else

................................................................................
      sqlite3VdbeSetColName(v, 1, "cid", P3_STATIC);
      sqlite3VdbeSetColName(v, 2, "name", P3_STATIC);
      for(i=0; i<pIdx->nColumn; i++){
        int cnum = pIdx->aiColumn[i];
        sqlite3VdbeAddOp(v, OP_Integer, i, 0);
        sqlite3VdbeAddOp(v, OP_Integer, cnum, 0);
        assert( pTab->nCol>cnum );
        sqlite3VdbeOp3(v, OP_String, 0, 0, pTab->aCol[cnum].zName, 0);
        sqlite3VdbeAddOp(v, OP_Callback, 3, 0);
      }
    }
  }else

  if( sqlite3StrICmp(zLeft, "index_list")==0 ){
    Index *pIdx;
................................................................................
      int i = 0; 
      sqlite3VdbeSetNumCols(v, 3);
      sqlite3VdbeSetColName(v, 0, "seq", P3_STATIC);
      sqlite3VdbeSetColName(v, 1, "name", P3_STATIC);
      sqlite3VdbeSetColName(v, 2, "unique", P3_STATIC);
      while(pIdx){
        sqlite3VdbeAddOp(v, OP_Integer, i, 0);
        sqlite3VdbeOp3(v, OP_String, 0, 0, pIdx->zName, 0);
        sqlite3VdbeAddOp(v, OP_Integer, pIdx->onError!=OE_None, 0);
        sqlite3VdbeAddOp(v, OP_Callback, 3, 0);
        ++i;
        pIdx = pIdx->pNext;
      }
    }
  }else
................................................................................
      sqlite3VdbeSetColName(v, 3, "from", P3_STATIC);
      sqlite3VdbeSetColName(v, 4, "to", P3_STATIC);
      while(pFK){
        int j;
        for(j=0; j<pFK->nCol; j++){
          sqlite3VdbeAddOp(v, OP_Integer, i, 0);
          sqlite3VdbeAddOp(v, OP_Integer, j, 0);
          sqlite3VdbeOp3(v, OP_String, 0, 0, pFK->zTo, 0);
          sqlite3VdbeOp3(v, OP_String, 0, 0,
                           pTab->aCol[pFK->aCol[j].iFrom].zName, 0);
          sqlite3VdbeOp3(v, OP_String, 0, 0, pFK->aCol[j].zCol, 0);
          sqlite3VdbeAddOp(v, OP_Callback, 5, 0);
        }
        ++i;
        pFK = pFK->pNextFrom;
      }
    }
  }else
................................................................................
    sqlite3VdbeSetColName(v, 0, "seq", P3_STATIC);
    sqlite3VdbeSetColName(v, 1, "name", P3_STATIC);
    sqlite3VdbeSetColName(v, 2, "file", P3_STATIC);
    for(i=0; i<db->nDb; i++){
      if( db->aDb[i].pBt==0 ) continue;
      assert( db->aDb[i].zName!=0 );
      sqlite3VdbeAddOp(v, OP_Integer, i, 0);
      sqlite3VdbeOp3(v, OP_String, 0, 0, db->aDb[i].zName, 0);
      sqlite3VdbeOp3(v, OP_String, 0, 0,
           sqlite3BtreeGetFilename(db->aDb[i].pBt), 0);
      sqlite3VdbeAddOp(v, OP_Callback, 3, 0);
    }
  }else


  /*
................................................................................
    ** messages have been generated, output OK.  Otherwise output the
    ** error message
    */
    static VdbeOpList endCode[] = {
      { OP_MemLoad,     0, 0,        0},
      { OP_Integer,     0, 0,        0},
      { OP_Ne,          0, 0,        0},    /* 2 */
      { OP_String,      0, 0,        "ok"},
      { OP_Callback,    1, 0,        0},
    };

    /* Initialize the VDBE program */
    sqlite3VdbeSetNumCols(v, 1);
    sqlite3VdbeSetColName(v, 0, "integrity_check", P3_STATIC);
    sqlite3VdbeAddOpList(v, ArraySize(initCode), initCode);
................................................................................
        for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
          sqlite3VdbeAddOp(v, OP_Integer, pIdx->tnum, 0);
          cnt++;
        }
      }
      sqlite3VdbeAddOp(v, OP_IntegrityCk, cnt, i);
      sqlite3VdbeAddOp(v, OP_Dup, 0, 1);
      addr = sqlite3VdbeOp3(v, OP_String, 0, 0, "ok", P3_STATIC);
      sqlite3VdbeAddOp(v, OP_Eq, 0, addr+6);
      sqlite3VdbeOp3(v, OP_String, 0, 0,
         sqlite3MPrintf("*** in database %s ***\n", db->aDb[i].zName),
         P3_DYNAMIC);
      sqlite3VdbeAddOp(v, OP_Pull, 1, 0);
      sqlite3VdbeAddOp(v, OP_Concat, 2, 1);
      sqlite3VdbeAddOp(v, OP_Callback, 1, 0);

      /* Make sure all the indices are constructed correctly.
................................................................................
        sqlite3VdbeAddOp(v, OP_MemStore, 1, 1);
        loopTop = sqlite3VdbeAddOp(v, OP_Rewind, 1, 0);
        sqlite3VdbeAddOp(v, OP_MemIncr, 1, 0);
        for(j=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, j++){
          int k, jmp2;
          static VdbeOpList idxErr[] = {
            { OP_MemIncr,     0,  0,  0},
            { OP_String,      0,  0,  "rowid "},
            { OP_Recno,       1,  0,  0},
            { OP_String,      0,  0,  " missing from index "},
            { OP_String,      0,  0,  0},    /* 4 */
            { OP_Concat,      4,  0,  0},
            { OP_Callback,    1,  0,  0},
          };
          sqlite3GenerateIndexKey(v, pIdx, 1);
          jmp2 = sqlite3VdbeAddOp(v, OP_Found, j+2, 0);
          addr = sqlite3VdbeAddOpList(v, ArraySize(idxErr), idxErr);
          sqlite3VdbeChangeP3(v, addr+4, pIdx->zName, P3_STATIC);
................................................................................
             { OP_Rewind,       0,  0,  0},  /* 2 */
             { OP_MemIncr,      2,  0,  0},
             { OP_Next,         0,  0,  0},  /* 4 */
             { OP_MemLoad,      1,  0,  0},
             { OP_MemLoad,      2,  0,  0},
             { OP_Eq,           0,  0,  0},  /* 7 */
             { OP_MemIncr,      0,  0,  0},
             { OP_String,       0,  0,  "wrong # of entries in index "},
             { OP_String,       0,  0,  0},  /* 10 */
             { OP_Concat,       2,  0,  0},
             { OP_Callback,     1,  0,  0},
          };
          if( pIdx->tnum==0 ) continue;
          addr = sqlite3VdbeAddOpList(v, ArraySize(cntIdx), cntIdx);
          sqlite3VdbeChangeP1(v, addr+2, j+2);
          sqlite3VdbeChangeP2(v, addr+2, addr+5);








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631
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...
657
658
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661
662
663
664
665
666
667
668
669
670
671
672

**    May you do good and not evil.
**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains code used to implement the PRAGMA command.
**
** $Id: pragma.c,v 1.34 2004/05/29 11:24:50 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>

/*
** Interpret the given string as a boolean value.
*/
................................................................................
      sqlite3VdbeSetColName(v, 2, "type", P3_STATIC);
      sqlite3VdbeSetColName(v, 3, "notnull", P3_STATIC);
      sqlite3VdbeSetColName(v, 4, "dflt_value", P3_STATIC);
      sqlite3VdbeSetColName(v, 5, "pk", P3_STATIC);
      sqlite3ViewGetColumnNames(pParse, pTab);
      for(i=0; i<pTab->nCol; i++){
        sqlite3VdbeAddOp(v, OP_Integer, i, 0);
        sqlite3VdbeOp3(v, OP_String8, 0, 0, pTab->aCol[i].zName, 0);
        sqlite3VdbeOp3(v, OP_String8, 0, 0,
           pTab->aCol[i].zType ? pTab->aCol[i].zType : "numeric", 0);
        sqlite3VdbeAddOp(v, OP_Integer, pTab->aCol[i].notNull, 0);
        sqlite3VdbeOp3(v, OP_String8, 0, 0,
           pTab->aCol[i].zDflt, P3_STATIC);
        sqlite3VdbeAddOp(v, OP_Integer, pTab->aCol[i].isPrimKey, 0);
        sqlite3VdbeAddOp(v, OP_Callback, 6, 0);
      }
    }
  }else

................................................................................
      sqlite3VdbeSetColName(v, 1, "cid", P3_STATIC);
      sqlite3VdbeSetColName(v, 2, "name", P3_STATIC);
      for(i=0; i<pIdx->nColumn; i++){
        int cnum = pIdx->aiColumn[i];
        sqlite3VdbeAddOp(v, OP_Integer, i, 0);
        sqlite3VdbeAddOp(v, OP_Integer, cnum, 0);
        assert( pTab->nCol>cnum );
        sqlite3VdbeOp3(v, OP_String8, 0, 0, pTab->aCol[cnum].zName, 0);
        sqlite3VdbeAddOp(v, OP_Callback, 3, 0);
      }
    }
  }else

  if( sqlite3StrICmp(zLeft, "index_list")==0 ){
    Index *pIdx;
................................................................................
      int i = 0; 
      sqlite3VdbeSetNumCols(v, 3);
      sqlite3VdbeSetColName(v, 0, "seq", P3_STATIC);
      sqlite3VdbeSetColName(v, 1, "name", P3_STATIC);
      sqlite3VdbeSetColName(v, 2, "unique", P3_STATIC);
      while(pIdx){
        sqlite3VdbeAddOp(v, OP_Integer, i, 0);
        sqlite3VdbeOp3(v, OP_String8, 0, 0, pIdx->zName, 0);
        sqlite3VdbeAddOp(v, OP_Integer, pIdx->onError!=OE_None, 0);
        sqlite3VdbeAddOp(v, OP_Callback, 3, 0);
        ++i;
        pIdx = pIdx->pNext;
      }
    }
  }else
................................................................................
      sqlite3VdbeSetColName(v, 3, "from", P3_STATIC);
      sqlite3VdbeSetColName(v, 4, "to", P3_STATIC);
      while(pFK){
        int j;
        for(j=0; j<pFK->nCol; j++){
          sqlite3VdbeAddOp(v, OP_Integer, i, 0);
          sqlite3VdbeAddOp(v, OP_Integer, j, 0);
          sqlite3VdbeOp3(v, OP_String8, 0, 0, pFK->zTo, 0);
          sqlite3VdbeOp3(v, OP_String8, 0, 0,
                           pTab->aCol[pFK->aCol[j].iFrom].zName, 0);
          sqlite3VdbeOp3(v, OP_String8, 0, 0, pFK->aCol[j].zCol, 0);
          sqlite3VdbeAddOp(v, OP_Callback, 5, 0);
        }
        ++i;
        pFK = pFK->pNextFrom;
      }
    }
  }else
................................................................................
    sqlite3VdbeSetColName(v, 0, "seq", P3_STATIC);
    sqlite3VdbeSetColName(v, 1, "name", P3_STATIC);
    sqlite3VdbeSetColName(v, 2, "file", P3_STATIC);
    for(i=0; i<db->nDb; i++){
      if( db->aDb[i].pBt==0 ) continue;
      assert( db->aDb[i].zName!=0 );
      sqlite3VdbeAddOp(v, OP_Integer, i, 0);
      sqlite3VdbeOp3(v, OP_String8, 0, 0, db->aDb[i].zName, 0);
      sqlite3VdbeOp3(v, OP_String8, 0, 0,
           sqlite3BtreeGetFilename(db->aDb[i].pBt), 0);
      sqlite3VdbeAddOp(v, OP_Callback, 3, 0);
    }
  }else


  /*
................................................................................
    ** messages have been generated, output OK.  Otherwise output the
    ** error message
    */
    static VdbeOpList endCode[] = {
      { OP_MemLoad,     0, 0,        0},
      { OP_Integer,     0, 0,        0},
      { OP_Ne,          0, 0,        0},    /* 2 */
      { OP_String8,      0, 0,        "ok"},
      { OP_Callback,    1, 0,        0},
    };

    /* Initialize the VDBE program */
    sqlite3VdbeSetNumCols(v, 1);
    sqlite3VdbeSetColName(v, 0, "integrity_check", P3_STATIC);
    sqlite3VdbeAddOpList(v, ArraySize(initCode), initCode);
................................................................................
        for(pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext){
          sqlite3VdbeAddOp(v, OP_Integer, pIdx->tnum, 0);
          cnt++;
        }
      }
      sqlite3VdbeAddOp(v, OP_IntegrityCk, cnt, i);
      sqlite3VdbeAddOp(v, OP_Dup, 0, 1);
      addr = sqlite3VdbeOp3(v, OP_String8, 0, 0, "ok", P3_STATIC);
      sqlite3VdbeAddOp(v, OP_Eq, 0, addr+6);
      sqlite3VdbeOp3(v, OP_String8, 0, 0,
         sqlite3MPrintf("*** in database %s ***\n", db->aDb[i].zName),
         P3_DYNAMIC);
      sqlite3VdbeAddOp(v, OP_Pull, 1, 0);
      sqlite3VdbeAddOp(v, OP_Concat, 2, 1);
      sqlite3VdbeAddOp(v, OP_Callback, 1, 0);

      /* Make sure all the indices are constructed correctly.
................................................................................
        sqlite3VdbeAddOp(v, OP_MemStore, 1, 1);
        loopTop = sqlite3VdbeAddOp(v, OP_Rewind, 1, 0);
        sqlite3VdbeAddOp(v, OP_MemIncr, 1, 0);
        for(j=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, j++){
          int k, jmp2;
          static VdbeOpList idxErr[] = {
            { OP_MemIncr,     0,  0,  0},
            { OP_String8,      0,  0,  "rowid "},
            { OP_Recno,       1,  0,  0},
            { OP_String8,      0,  0,  " missing from index "},
            { OP_String8,      0,  0,  0},    /* 4 */
            { OP_Concat,      4,  0,  0},
            { OP_Callback,    1,  0,  0},
          };
          sqlite3GenerateIndexKey(v, pIdx, 1);
          jmp2 = sqlite3VdbeAddOp(v, OP_Found, j+2, 0);
          addr = sqlite3VdbeAddOpList(v, ArraySize(idxErr), idxErr);
          sqlite3VdbeChangeP3(v, addr+4, pIdx->zName, P3_STATIC);
................................................................................
             { OP_Rewind,       0,  0,  0},  /* 2 */
             { OP_MemIncr,      2,  0,  0},
             { OP_Next,         0,  0,  0},  /* 4 */
             { OP_MemLoad,      1,  0,  0},
             { OP_MemLoad,      2,  0,  0},
             { OP_Eq,           0,  0,  0},  /* 7 */
             { OP_MemIncr,      0,  0,  0},
             { OP_String8,       0,  0,  "wrong # of entries in index "},
             { OP_String8,       0,  0,  0},  /* 10 */
             { OP_Concat,       2,  0,  0},
             { OP_Callback,     1,  0,  0},
          };
          if( pIdx->tnum==0 ) continue;
          addr = sqlite3VdbeAddOpList(v, ArraySize(cntIdx), cntIdx);
          sqlite3VdbeChangeP1(v, addr+2, j+2);
          sqlite3VdbeChangeP2(v, addr+2, addr+5);

Changes to src/select.c. 

8
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391
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...
575
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....
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2359
2360
2361

**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains C code routines that are called by the parser
** to handle SELECT statements in SQLite.
**
** $Id: select.c,v 1.181 2004/05/28 13:13:02 danielk1977 Exp $
*/
#include "sqliteInt.h"


/*
** Allocate a new Select structure and return a pointer to that
** structure.
................................................................................
    sqlite3VdbeAddOp(v, OP_IsNull, -pEList->nExpr, sqlite3VdbeCurrentAddr(v)+7);
#endif
    /* Deliberately leave the affinity string off of the following OP_MakeKey */
    sqlite3VdbeAddOp(v, OP_MakeKey, pEList->nExpr, 1);
    sqlite3VdbeAddOp(v, OP_Distinct, distinct, sqlite3VdbeCurrentAddr(v)+3);
    sqlite3VdbeAddOp(v, OP_Pop, pEList->nExpr+1, 0);
    sqlite3VdbeAddOp(v, OP_Goto, 0, iContinue);
    sqlite3VdbeAddOp(v, OP_String, 0, 0);
    sqlite3VdbeAddOp(v, OP_PutStrKey, distinct, 0);
  }

  switch( eDest ){
    /* In this mode, write each query result to the key of the temporary
    ** table iParm.
    */
    case SRT_Union: {
      sqlite3VdbeAddOp(v, OP_MakeRecord, nColumn, NULL_ALWAYS_DISTINCT);
      sqlite3VdbeChangeP3(v, -1, aff, P3_STATIC);
      sqlite3VdbeAddOp(v, OP_String, 0, 0);
      sqlite3VdbeAddOp(v, OP_PutStrKey, iParm, 0);
      break;
    }

    /* Store the result as data using a unique key.
    */
    case SRT_Table:
................................................................................
        pushOntoSorter(pParse, v, pOrderBy);
      }else{
        char const *affStr;
        char aff = (iParm>>16)&0xFF;
        aff = sqlite3CompareAffinity(pEList->a[0].pExpr, aff);
        affStr = sqlite3AffinityString(aff);
        sqlite3VdbeOp3(v, OP_MakeKey, 1, 0, affStr, P3_STATIC);
        sqlite3VdbeAddOp(v, OP_String, 0, 0);
        sqlite3VdbeAddOp(v, OP_PutStrKey, (iParm&0x0000FFFF), 0);
      }
      sqlite3VdbeChangeP2(v, addr2, sqlite3VdbeCurrentAddr(v));
      break;
    }

    /* If this is a scalar select that is part of an expression, then
................................................................................
    }
    case SRT_Set: {
      assert( nColumn==1 );
      sqlite3VdbeAddOp(v, OP_NotNull, -1, sqlite3VdbeCurrentAddr(v)+3);
      sqlite3VdbeAddOp(v, OP_Pop, 1, 0);
      sqlite3VdbeAddOp(v, OP_Goto, 0, sqlite3VdbeCurrentAddr(v)+3);
      sqlite3VdbeOp3(v, OP_MakeKey, 1, 0, "n", P3_STATIC);
      sqlite3VdbeAddOp(v, OP_String, 0, 0);
      sqlite3VdbeAddOp(v, OP_PutStrKey, (iParm&0x0000FFFF), 0);
      break;
    }
    case SRT_Mem: {
      assert( nColumn==1 );
      sqlite3VdbeAddOp(v, OP_MemStore, iParm, 1);
      sqlite3VdbeAddOp(v, OP_Goto, 0, end1);
................................................................................
    for(i=0; i<pParse->nAgg; i++){
      FuncDef *pFunc;
      if( (pFunc = pParse->aAgg[i].pFunc)!=0 && pFunc->xFinalize!=0 ){
        sqlite3VdbeOp3(v, OP_AggInit, 0, i, (char*)pFunc, P3_FUNCDEF);
      }
    }
    if( pGroupBy==0 ){
      sqlite3VdbeAddOp(v, OP_String, 0, 0);
      sqlite3VdbeAddOp(v, OP_AggFocus, 0, 0);
    }
  }

  /* Initialize the memory cell to NULL
  */
  if( eDest==SRT_Mem ){
    sqlite3VdbeAddOp(v, OP_String, 0, 0);
    sqlite3VdbeAddOp(v, OP_MemStore, iParm, 1);
  }

  /* Open a temporary table to use for the distinct set.
  */
  if( isDistinct ){
    distinct = pParse->nTab++;








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8
9
10
11
12
13
14
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16
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18
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20
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22
...
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
...
455
456
457
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460
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462
463
464
465
466
467
468
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...
575
576
577
578
579
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582
583
584
585
586
587
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589
....
2339
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2349
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2354
2355
2356
2357
2358
2359
2360
2361

**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains C code routines that are called by the parser
** to handle SELECT statements in SQLite.
**
** $Id: select.c,v 1.182 2004/05/29 11:24:50 danielk1977 Exp $
*/
#include "sqliteInt.h"


/*
** Allocate a new Select structure and return a pointer to that
** structure.
................................................................................
    sqlite3VdbeAddOp(v, OP_IsNull, -pEList->nExpr, sqlite3VdbeCurrentAddr(v)+7);
#endif
    /* Deliberately leave the affinity string off of the following OP_MakeKey */
    sqlite3VdbeAddOp(v, OP_MakeKey, pEList->nExpr, 1);
    sqlite3VdbeAddOp(v, OP_Distinct, distinct, sqlite3VdbeCurrentAddr(v)+3);
    sqlite3VdbeAddOp(v, OP_Pop, pEList->nExpr+1, 0);
    sqlite3VdbeAddOp(v, OP_Goto, 0, iContinue);
    sqlite3VdbeAddOp(v, OP_String8, 0, 0);
    sqlite3VdbeAddOp(v, OP_PutStrKey, distinct, 0);
  }

  switch( eDest ){
    /* In this mode, write each query result to the key of the temporary
    ** table iParm.
    */
    case SRT_Union: {
      sqlite3VdbeAddOp(v, OP_MakeRecord, nColumn, NULL_ALWAYS_DISTINCT);
      sqlite3VdbeChangeP3(v, -1, aff, P3_STATIC);
      sqlite3VdbeAddOp(v, OP_String8, 0, 0);
      sqlite3VdbeAddOp(v, OP_PutStrKey, iParm, 0);
      break;
    }

    /* Store the result as data using a unique key.
    */
    case SRT_Table:
................................................................................
        pushOntoSorter(pParse, v, pOrderBy);
      }else{
        char const *affStr;
        char aff = (iParm>>16)&0xFF;
        aff = sqlite3CompareAffinity(pEList->a[0].pExpr, aff);
        affStr = sqlite3AffinityString(aff);
        sqlite3VdbeOp3(v, OP_MakeKey, 1, 0, affStr, P3_STATIC);
        sqlite3VdbeAddOp(v, OP_String8, 0, 0);
        sqlite3VdbeAddOp(v, OP_PutStrKey, (iParm&0x0000FFFF), 0);
      }
      sqlite3VdbeChangeP2(v, addr2, sqlite3VdbeCurrentAddr(v));
      break;
    }

    /* If this is a scalar select that is part of an expression, then
................................................................................
    }
    case SRT_Set: {
      assert( nColumn==1 );
      sqlite3VdbeAddOp(v, OP_NotNull, -1, sqlite3VdbeCurrentAddr(v)+3);
      sqlite3VdbeAddOp(v, OP_Pop, 1, 0);
      sqlite3VdbeAddOp(v, OP_Goto, 0, sqlite3VdbeCurrentAddr(v)+3);
      sqlite3VdbeOp3(v, OP_MakeKey, 1, 0, "n", P3_STATIC);
      sqlite3VdbeAddOp(v, OP_String8, 0, 0);
      sqlite3VdbeAddOp(v, OP_PutStrKey, (iParm&0x0000FFFF), 0);
      break;
    }
    case SRT_Mem: {
      assert( nColumn==1 );
      sqlite3VdbeAddOp(v, OP_MemStore, iParm, 1);
      sqlite3VdbeAddOp(v, OP_Goto, 0, end1);
................................................................................
    for(i=0; i<pParse->nAgg; i++){
      FuncDef *pFunc;
      if( (pFunc = pParse->aAgg[i].pFunc)!=0 && pFunc->xFinalize!=0 ){
        sqlite3VdbeOp3(v, OP_AggInit, 0, i, (char*)pFunc, P3_FUNCDEF);
      }
    }
    if( pGroupBy==0 ){
      sqlite3VdbeAddOp(v, OP_String8, 0, 0);
      sqlite3VdbeAddOp(v, OP_AggFocus, 0, 0);
    }
  }

  /* Initialize the memory cell to NULL
  */
  if( eDest==SRT_Mem ){
    sqlite3VdbeAddOp(v, OP_String8, 0, 0);
    sqlite3VdbeAddOp(v, OP_MemStore, iParm, 1);
  }

  /* Open a temporary table to use for the distinct set.
  */
  if( isDistinct ){
    distinct = pParse->nTab++;

Changes to src/trigger.c. 

205
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486
487


  /* if we are not initializing, and this trigger is not on a TEMP table, 
  ** build the sqlite_master entry
  */
  if( !db->init.busy ){
    static VdbeOpList insertTrig[] = {
      { OP_NewRecno,   0, 0,  0          },
      { OP_String,     0, 0,  "trigger"  },
      { OP_String,     0, 0,  0          },  /* 2: trigger name */
      { OP_String,     0, 0,  0          },  /* 3: table name */
      { OP_Integer,    0, 0,  0          },
      { OP_String,     0, 0,  "CREATE TRIGGER "},
      { OP_String,     0, 0,  0          },  /* 6: SQL */
      { OP_Concat,     2, 0,  0          }, 
      { OP_MakeRecord, 5, 0,  "tttit"    },
      { OP_PutIntKey,  0, 0,  0          },
    };
    int addr;
    Vdbe *v;

................................................................................

  /* Generate code to destroy the database record of the trigger.
  */
  if( pTable!=0 && !nested && (v = sqlite3GetVdbe(pParse))!=0 ){
    int base;
    static VdbeOpList dropTrigger[] = {
      { OP_Rewind,     0, ADDR(9),  0},
      { OP_String,     0, 0,        0}, /* 1 */
      { OP_Column,     0, 1,        0},
      { OP_Ne,         0, ADDR(8),  0},
      { OP_String,     0, 0,        "trigger"},
      { OP_Column,     0, 0,        0},
      { OP_Ne,         0, ADDR(8),  0},
      { OP_Delete,     0, 0,        0},
      { OP_Next,       0, ADDR(1),  0}, /* 8 */
    };

    sqlite3BeginWriteOperation(pParse, 0, pTrigger->iDb);








|
|
|

|
|







 







|


|








205
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470
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477
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479
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481
482
483
484
485
486
487


  /* if we are not initializing, and this trigger is not on a TEMP table, 
  ** build the sqlite_master entry
  */
  if( !db->init.busy ){
    static VdbeOpList insertTrig[] = {
      { OP_NewRecno,   0, 0,  0          },
      { OP_String8,     0, 0,  "trigger"  },
      { OP_String8,     0, 0,  0          },  /* 2: trigger name */
      { OP_String8,     0, 0,  0          },  /* 3: table name */
      { OP_Integer,    0, 0,  0          },
      { OP_String8,     0, 0,  "CREATE TRIGGER "},
      { OP_String8,     0, 0,  0          },  /* 6: SQL */
      { OP_Concat,     2, 0,  0          }, 
      { OP_MakeRecord, 5, 0,  "tttit"    },
      { OP_PutIntKey,  0, 0,  0          },
    };
    int addr;
    Vdbe *v;

................................................................................

  /* Generate code to destroy the database record of the trigger.
  */
  if( pTable!=0 && !nested && (v = sqlite3GetVdbe(pParse))!=0 ){
    int base;
    static VdbeOpList dropTrigger[] = {
      { OP_Rewind,     0, ADDR(9),  0},
      { OP_String8,     0, 0,        0}, /* 1 */
      { OP_Column,     0, 1,        0},
      { OP_Ne,         0, ADDR(8),  0},
      { OP_String8,     0, 0,        "trigger"},
      { OP_Column,     0, 0,        0},
      { OP_Ne,         0, ADDR(8),  0},
      { OP_Delete,     0, 0,        0},
      { OP_Next,       0, ADDR(1),  0}, /* 8 */
    };

    sqlite3BeginWriteOperation(pParse, 0, pTrigger->iDb);

Changes to src/update.c. 

8
9
10
11
12
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14
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20
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...
275
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277
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285
286
287
288
289
...
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373

**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains C code routines that are called by the parser
** to handle UPDATE statements.
**
** $Id: update.c,v 1.80 2004/05/26 10:11:06 danielk1977 Exp $
*/
#include "sqliteInt.h"

/*
** Process an UPDATE statement.
**
**   UPDATE OR IGNORE table_wxyz SET a=b, c=d WHERE e<5 AND f NOT NULL;
................................................................................
    if( chngRecno ){
      sqlite3ExprCode(pParse, pRecnoExpr);
    }else{
      sqlite3VdbeAddOp(v, OP_Recno, iCur, 0);
    }
    for(i=0; i<pTab->nCol; i++){
      if( i==pTab->iPKey ){
        sqlite3VdbeAddOp(v, OP_String, 0, 0);
        continue;
      }
      j = aXRef[i];
      if( j<0 ){
        sqlite3VdbeAddOp(v, OP_Column, iCur, i);
      }else{
        sqlite3ExprCode(pParse, pChanges->a[j].pExpr);
................................................................................
      sqlite3VdbeAddOp(v, OP_MustBeInt, 0, 0);
    }

    /* Compute new data for this record.  
    */
    for(i=0; i<pTab->nCol; i++){
      if( i==pTab->iPKey ){
        sqlite3VdbeAddOp(v, OP_String, 0, 0);
        continue;
      }
      j = aXRef[i];
      if( j<0 ){
        sqlite3VdbeAddOp(v, OP_Column, iCur, i);
      }else{
        sqlite3ExprCode(pParse, pChanges->a[j].pExpr);








|







 







|







 







|








8
9
10
11
12
13
14
15
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18
19
20
21
22
...
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
...
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373

**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This file contains C code routines that are called by the parser
** to handle UPDATE statements.
**
** $Id: update.c,v 1.81 2004/05/29 11:24:50 danielk1977 Exp $
*/
#include "sqliteInt.h"

/*
** Process an UPDATE statement.
**
**   UPDATE OR IGNORE table_wxyz SET a=b, c=d WHERE e<5 AND f NOT NULL;
................................................................................
    if( chngRecno ){
      sqlite3ExprCode(pParse, pRecnoExpr);
    }else{
      sqlite3VdbeAddOp(v, OP_Recno, iCur, 0);
    }
    for(i=0; i<pTab->nCol; i++){
      if( i==pTab->iPKey ){
        sqlite3VdbeAddOp(v, OP_String8, 0, 0);
        continue;
      }
      j = aXRef[i];
      if( j<0 ){
        sqlite3VdbeAddOp(v, OP_Column, iCur, i);
      }else{
        sqlite3ExprCode(pParse, pChanges->a[j].pExpr);
................................................................................
      sqlite3VdbeAddOp(v, OP_MustBeInt, 0, 0);
    }

    /* Compute new data for this record.  
    */
    for(i=0; i<pTab->nCol; i++){
      if( i==pTab->iPKey ){
        sqlite3VdbeAddOp(v, OP_String8, 0, 0);
        continue;
      }
      j = aXRef[i];
      if( j<0 ){
        sqlite3VdbeAddOp(v, OP_Column, iCur, i);
      }else{
        sqlite3ExprCode(pParse, pChanges->a[j].pExpr);

Changes to src/vdbe.c. 

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44
45
46
47
48
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53
...
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691
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699

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705










706
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730
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732
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734
735
736
737

738



739
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741







742
743









744
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746
747
748
749
750

**
** Various scripts scan this source file in order to generate HTML
** documentation, headers files, or other derived files.  The formatting
** of the code in this file is, therefore, important.  See other comments
** in this file for details.  If in doubt, do not deviate from existing
** commenting and indentation practices when changing or adding code.
**
** $Id: vdbe.c,v 1.346 2004/05/29 02:37:19 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include <ctype.h>
#include "vdbeInt.h"

/*
................................................................................
  pTos->z = pOp->p3;
  pTos->n = strlen(pTos->z);
  pTos->enc = TEXT_Utf8;
  Realify(pTos, 0);
  break;
}

#if 0
/* Opcode: String8 * * P3
**

** This opcode does not exist at vdbe execution time.
*/
case OP_String8: {
  break;
}
#endif










  
/* Opcode: String * * P3
**
** The string value P3 is pushed onto the stack.  If P3==0 then a
** NULL is pushed onto the stack. P3 is assumed to be a nul terminated
** string encoded with the database native encoding.
*/
case OP_String: {
  pTos++;
  if( pOp->p3 ){
    pTos->flags = MEM_Str|MEM_Static|MEM_Term;
    pTos->z = pOp->p3;
    pTos->n = strlen(pTos->z);
    pTos->enc = TEXT_Utf8;
    sqlite3VdbeChangeEncoding(pTos, db->enc);
/*
    if( db->enc==TEXT_Utf8 ){
      pTos->n = strlen(pTos->z);
    }else{
      pTos->n  = sqlite3utf16ByteLen(pTos->z, -1);
    }
    pTos->enc = db->enc;
*/
  }else{
    pTos->flags = MEM_Null;
  }
  break;
}

#if 0
/* Opcode: HexBlob * * P3
**

** This opcode does not exist at vdbe execution time.



*/
case OP_HexBlob: {
  break;







}
#endif










/* Opcode: Blob P1 * P3
**
** P3 points to a blob of data P1 bytes long. Push this
** value onto the stack. This instruction is not coded directly
** by the compiler. Instead, the compiler layer specifies
** an OP_HexBlob opcode, with the hex string representation of








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**
** Various scripts scan this source file in order to generate HTML
** documentation, headers files, or other derived files.  The formatting
** of the code in this file is, therefore, important.  See other comments
** in this file for details.  If in doubt, do not deviate from existing
** commenting and indentation practices when changing or adding code.
**
** $Id: vdbe.c,v 1.347 2004/05/29 11:24:50 danielk1977 Exp $
*/
#include "sqliteInt.h"
#include "os.h"
#include <ctype.h>
#include "vdbeInt.h"

/*
................................................................................
  pTos->z = pOp->p3;
  pTos->n = strlen(pTos->z);
  pTos->enc = TEXT_Utf8;
  Realify(pTos, 0);
  break;
}


/* Opcode: String8 * * P3
**
** P3 points to a nul terminated UTF-8 string. This opcode is transformed
** into an OP_String before it is executed for the first time.
*/
case OP_String8: {
  pOp->opcode = OP_String;

  if( db->enc!=TEXT_Utf8 && pOp->p3 ){
    if( db->enc==TEXT_Utf16le ){
      pOp->p3 = sqlite3utf8to16le(pOp->p3, -1);
    }else{
      pOp->p3 = sqlite3utf8to16be(pOp->p3, -1);
    }
    if( !pOp->p3 ) goto no_mem;
  }

  /* Fall through to the next case, OP_String */
}
  
/* Opcode: String * * P3
**
** The string value P3 is pushed onto the stack.  If P3==0 then a
** NULL is pushed onto the stack. P3 is assumed to be a nul terminated
** string encoded with the database native encoding.
*/
case OP_String: {
  pTos++;
  if( pOp->p3 ){
    pTos->flags = MEM_Str|MEM_Static|MEM_Term;
    pTos->z = pOp->p3;




    if( db->enc==TEXT_Utf8 ){
      pTos->n = strlen(pTos->z);
    }else{
      pTos->n  = sqlite3utf16ByteLen(pTos->z, -1);
    }
    pTos->enc = db->enc;

  }else{
    pTos->flags = MEM_Null;
  }
  break;
}


/* Opcode: HexBlob * * P3
**
** P3 is an SQL hex encoding of a blob. The blob is pushed
** onto the vdbe stack.
**
** The first time this instruction executes, in transforms
** itself into a 'Blob' opcode with a binary blob as P3.
*/
case OP_HexBlob: {

  pOp->opcode = OP_Blob;
  pOp->p1 = strlen(pOp->p3)/2;
  if( pOp->p1 ){
    char *zBlob = sqlite3HexToBlob(pOp->p3);
    if( !zBlob ) goto no_mem;
    if( pOp->p3type==P3_DYNAMIC ){
      sqliteFree(pOp->p3);
    }

    pOp->p3 = zBlob;
    pOp->p3type = P3_DYNAMIC;
  }else{
    pOp->p3type = P3_STATIC;
    pOp->p3 = "";
  }

  /* Fall through to the next case, OP_Blob. */
}

/* Opcode: Blob P1 * P3
**
** P3 points to a blob of data P1 bytes long. Push this
** value onto the stack. This instruction is not coded directly
** by the compiler. Instead, the compiler layer specifies
** an OP_HexBlob opcode, with the hex string representation of

Changes to src/vdbeaux.c. 

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    p->rc = SQLITE_OK;
    p->resOnStack = 1;
    rc = SQLITE_ROW;
  }
  return rc;
}

/*
** If pOp is an OP_HexBlob opcode, then transform it to an OP_Blob
** opcode. 
*/
static int translateOp(Op *pOp, u8 enc){
  
  if( pOp->opcode==OP_HexBlob ){
    pOp->p1 = strlen(pOp->p3)/2;
    if( pOp->p1 ){
      char *zBlob = sqlite3HexToBlob(pOp->p3);
      if( !zBlob ) return SQLITE_NOMEM;
      if( pOp->p3type==P3_DYNAMIC ){
        sqliteFree(pOp->p3);
      }
      pOp->p3 = zBlob;
      pOp->p3type = P3_DYNAMIC;
    }else{
      pOp->p3type = P3_STATIC;
      pOp->p3 = "";
    }
    pOp->opcode = OP_Blob;
  }

  else if( pOp->opcode==OP_String8 ){
    if( pOp->p3 ){
      void *z = 0;
      switch( enc ){
        case TEXT_Utf16be:
          z = sqlite3utf8to16be(pOp->p3, -1);
          if( !z ) return SQLITE_NOMEM;
          break;
        case TEXT_Utf16le:
          z = sqlite3utf8to16be(pOp->p3, -1);
          if( !z ) return SQLITE_NOMEM;
          break;
      }
      if( z ){
        if( pOp->p3type==P3_DYNAMIC ) sqliteFree( pOp->p3 );
        
      }
    }
    pOp->opcode = OP_String;
  }

  return SQLITE_OK;
}

/*
** Prepare a virtual machine for execution.  This involves things such
** as allocating stack space and initializing the program counter.
** After the VDBE has be prepped, it can be executed by one or more
** calls to sqlite3VdbeExec().  
*/
void sqlite3VdbeMakeReady(
................................................................................
    int i;
    for(i=0; i<p->nOp; i++){
      p->aOp[i].cnt = 0;
      p->aOp[i].cycles = 0;
    }
  }
#endif
  if( !isExplain ){
    int i;
    for(i=0; i<p->nOp; i++){
      translateOp(&p->aOp[i], p->db->enc);
    }
  }
}


/*
** Remove any elements that remain on the sorter for the VDBE given.
*/
void sqlite3VdbeSorterReset(Vdbe *p){








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    p->rc = SQLITE_OK;
    p->resOnStack = 1;
    rc = SQLITE_ROW;
  }
  return rc;
}
















































/*
** Prepare a virtual machine for execution.  This involves things such
** as allocating stack space and initializing the program counter.
** After the VDBE has be prepped, it can be executed by one or more
** calls to sqlite3VdbeExec().  
*/
void sqlite3VdbeMakeReady(
................................................................................
    int i;
    for(i=0; i<p->nOp; i++){
      p->aOp[i].cnt = 0;
      p->aOp[i].cycles = 0;
    }
  }
#endif






}


/*
** Remove any elements that remain on the sorter for the VDBE given.
*/
void sqlite3VdbeSorterReset(Vdbe *p){

Changes to src/where.c. 

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**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This module contains C code that generates VDBE code used to process
** the WHERE clause of SQL statements.
**
** $Id: where.c,v 1.100 2004/05/20 22:16:30 drh Exp $
*/
#include "sqliteInt.h"

/*
** The query generator uses an array of instances of this structure to
** help it analyze the subexpressions of the WHERE clause.  Each WHERE
** clause subexpression is separated from the others by an AND operator.
................................................................................
    /* If this is the right table of a LEFT OUTER JOIN, allocate and
    ** initialize a memory cell that records if this table matches any
    ** row of the left table of the join.
    */
    if( i>0 && (pTabList->a[i-1].jointype & JT_LEFT)!=0 ){
      if( !pParse->nMem ) pParse->nMem++;
      pLevel->iLeftJoin = pParse->nMem++;
      sqlite3VdbeAddOp(v, OP_String, 0, 0);
      sqlite3VdbeAddOp(v, OP_MemStore, pLevel->iLeftJoin, 1);
    }

    pIdx = pLevel->pIdx;
    pLevel->inOp = OP_Noop;
    if( i<ARRAYSIZE(iDirectEq) && iDirectEq[i]>=0 ){
      /* Case 1:  We can directly reference a single row using an








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**    May you find forgiveness for yourself and forgive others.
**    May you share freely, never taking more than you give.
**
*************************************************************************
** This module contains C code that generates VDBE code used to process
** the WHERE clause of SQL statements.
**
** $Id: where.c,v 1.101 2004/05/29 11:24:50 danielk1977 Exp $
*/
#include "sqliteInt.h"

/*
** The query generator uses an array of instances of this structure to
** help it analyze the subexpressions of the WHERE clause.  Each WHERE
** clause subexpression is separated from the others by an AND operator.
................................................................................
    /* If this is the right table of a LEFT OUTER JOIN, allocate and
    ** initialize a memory cell that records if this table matches any
    ** row of the left table of the join.
    */
    if( i>0 && (pTabList->a[i-1].jointype & JT_LEFT)!=0 ){
      if( !pParse->nMem ) pParse->nMem++;
      pLevel->iLeftJoin = pParse->nMem++;
      sqlite3VdbeAddOp(v, OP_String8, 0, 0);
      sqlite3VdbeAddOp(v, OP_MemStore, pLevel->iLeftJoin, 1);
    }

    pIdx = pLevel->pIdx;
    pLevel->inOp = OP_Noop;
    if( i<ARRAYSIZE(iDirectEq) && iDirectEq[i]>=0 ){
      /* Case 1:  We can directly reference a single row using an

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