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Overview
Comment:Convert several ALWAYS() macros in vdbe.c into assert() statements.
Downloads: Tarball | ZIP archive
Timelines: family | ancestors | descendants | both | trunk
Files: files | file ages | folders
SHA1: acc40ff6b47595432ebc1b3ec71ac50384bec323
User & Date: drh 2013-11-11 03:24:11.697
Context
2013-11-11
03:37
Fix issue with several memory allocation tests due to KeyInfo allocations now being shared. (check-in: 569fedd6bb user: mistachkin tags: trunk)
03:24
Convert several ALWAYS() macros in vdbe.c into assert() statements. (check-in: acc40ff6b4 user: drh tags: trunk)
02:46
Fix several harmless compiler warnings. (check-in: e6ff492f0d user: mistachkin tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/vdbe.c.
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      assert( (payloadSize64 & SQLITE_MAX_U32)==(u64)payloadSize64 );
      payloadSize = (u32)payloadSize64;
    }else{
      assert( sqlite3BtreeCursorIsValid(pCrsr) );
      VVA_ONLY(rc =) sqlite3BtreeDataSize(pCrsr, &payloadSize);
      assert( rc==SQLITE_OK );   /* DataSize() cannot fail */
    }

  }else if( ALWAYS(pC->pseudoTableReg>0) ){
    pReg = &aMem[pC->pseudoTableReg];
    if( pC->multiPseudo ){
      sqlite3VdbeMemShallowCopy(pDest, pReg+p2, MEM_Ephem);
      Deephemeralize(pDest);
      goto op_column_out;
    }
    assert( pReg->flags & MEM_Blob );
    assert( memIsValid(pReg) );
    payloadSize = pReg->n;
    zRec = pReg->z;
    pC->cacheStatus = (pOp->p5&OPFLAG_CLEARCACHE) ? CACHE_STALE : p->cacheCtr;
    assert( payloadSize==0 || zRec!=0 );
  }else{
    /* Consider the row to be NULL */
    payloadSize = 0;
  }

  /* If payloadSize is 0, then just store a NULL.  This can happen because of
  ** nullRow or because of a corrupt database. */
  if( payloadSize==0 ){
    MemSetTypeFlag(pDest, MEM_Null);
    goto op_column_out;







>
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      assert( (payloadSize64 & SQLITE_MAX_U32)==(u64)payloadSize64 );
      payloadSize = (u32)payloadSize64;
    }else{
      assert( sqlite3BtreeCursorIsValid(pCrsr) );
      VVA_ONLY(rc =) sqlite3BtreeDataSize(pCrsr, &payloadSize);
      assert( rc==SQLITE_OK );   /* DataSize() cannot fail */
    }
  }else{
    assert( pC->pseudoTableReg>0 );
    pReg = &aMem[pC->pseudoTableReg];
    if( pC->multiPseudo ){
      sqlite3VdbeMemShallowCopy(pDest, pReg+p2, MEM_Ephem);
      Deephemeralize(pDest);
      goto op_column_out;
    }
    assert( pReg->flags & MEM_Blob );
    assert( memIsValid(pReg) );
    payloadSize = pReg->n;
    zRec = pReg->z;
    pC->cacheStatus = (pOp->p5&OPFLAG_CLEARCACHE) ? CACHE_STALE : p->cacheCtr;
    assert( payloadSize==0 || zRec!=0 );



  }

  /* If payloadSize is 0, then just store a NULL.  This can happen because of
  ** nullRow or because of a corrupt database. */
  if( payloadSize==0 ){
    MemSetTypeFlag(pDest, MEM_Null);
    goto op_column_out;
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*/
#ifndef SQLITE_OMIT_BTREECOUNT
case OP_Count: {         /* out2-prerelease */
  i64 nEntry;
  BtCursor *pCrsr;

  pCrsr = p->apCsr[pOp->p1]->pCursor;
  if( ALWAYS(pCrsr) ){
    rc = sqlite3BtreeCount(pCrsr, &nEntry);
  }else{
    nEntry = 0;
  }
  pOut->u.i = nEntry;
  break;
}
#endif

/* Opcode: Savepoint P1 * * P4 *
**







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*/
#ifndef SQLITE_OMIT_BTREECOUNT
case OP_Count: {         /* out2-prerelease */
  i64 nEntry;
  BtCursor *pCrsr;

  pCrsr = p->apCsr[pOp->p1]->pCursor;
  assert( pCrsr );
  rc = sqlite3BtreeCount(pCrsr, &nEntry);



  pOut->u.i = nEntry;
  break;
}
#endif

/* Opcode: Savepoint P1 * * P4 *
**
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  pC = p->apCsr[pOp->p1];
  assert( pC!=0 );
  assert( pC->pseudoTableReg==0 );
  assert( OP_SeekLe == OP_SeekLt+1 );
  assert( OP_SeekGe == OP_SeekLt+2 );
  assert( OP_SeekGt == OP_SeekLt+3 );
  assert( pC->isOrdered );
  if( ALWAYS(pC->pCursor!=0) ){
    oc = pOp->opcode;
    pC->nullRow = 0;
    if( pC->isTable ){
      /* The input value in P3 might be of any type: integer, real, string,
      ** blob, or NULL.  But it needs to be an integer before we can do
      ** the seek, so covert it. */
      pIn3 = &aMem[pOp->p3];
      applyNumericAffinity(pIn3);
      iKey = sqlite3VdbeIntValue(pIn3);
      pC->rowidIsValid = 0;

      /* If the P3 value could not be converted into an integer without
      ** loss of information, then special processing is required... */
      if( (pIn3->flags & MEM_Int)==0 ){
        if( (pIn3->flags & MEM_Real)==0 ){
          /* If the P3 value cannot be converted into any kind of a number,
          ** then the seek is not possible, so jump to P2 */
          pc = pOp->p2 - 1;
          break;
        }
        /* If we reach this point, then the P3 value must be a floating
        ** point number. */
        assert( (pIn3->flags & MEM_Real)!=0 );

        if( iKey==SMALLEST_INT64 && (pIn3->r<(double)iKey || pIn3->r>0) ){
          /* The P3 value is too large in magnitude to be expressed as an
          ** integer. */
          res = 1;
          if( pIn3->r<0 ){
            if( oc>=OP_SeekGe ){  assert( oc==OP_SeekGe || oc==OP_SeekGt );
              rc = sqlite3BtreeFirst(pC->pCursor, &res);
              if( rc!=SQLITE_OK ) goto abort_due_to_error;
            }
          }else{
            if( oc<=OP_SeekLe ){  assert( oc==OP_SeekLt || oc==OP_SeekLe );
              rc = sqlite3BtreeLast(pC->pCursor, &res);
              if( rc!=SQLITE_OK ) goto abort_due_to_error;
            }
          }
          if( res ){
            pc = pOp->p2 - 1;
          }
          break;
        }else if( oc==OP_SeekLt || oc==OP_SeekGe ){
          /* Use the ceiling() function to convert real->int */
          if( pIn3->r > (double)iKey ) iKey++;
        }else{
          /* Use the floor() function to convert real->int */
          assert( oc==OP_SeekLe || oc==OP_SeekGt );
          if( pIn3->r < (double)iKey ) iKey--;
        }
      } 
      rc = sqlite3BtreeMovetoUnpacked(pC->pCursor, 0, (u64)iKey, 0, &res);
      if( rc!=SQLITE_OK ){
        goto abort_due_to_error;
      }
      if( res==0 ){
        pC->rowidIsValid = 1;
        pC->lastRowid = iKey;
      }
    }else{
      nField = pOp->p4.i;
      assert( pOp->p4type==P4_INT32 );
      assert( nField>0 );
      r.pKeyInfo = pC->pKeyInfo;
      r.nField = (u16)nField;

      /* The next line of code computes as follows, only faster:
      **   if( oc==OP_SeekGt || oc==OP_SeekLe ){
      **     r.flags = UNPACKED_INCRKEY;
      **   }else{
      **     r.flags = 0;
      **   }
      */
      r.flags = (u8)(UNPACKED_INCRKEY * (1 & (oc - OP_SeekLt)));
      assert( oc!=OP_SeekGt || r.flags==UNPACKED_INCRKEY );
      assert( oc!=OP_SeekLe || r.flags==UNPACKED_INCRKEY );
      assert( oc!=OP_SeekGe || r.flags==0 );
      assert( oc!=OP_SeekLt || r.flags==0 );

      r.aMem = &aMem[pOp->p3];
#ifdef SQLITE_DEBUG
      { int i; for(i=0; i<r.nField; i++) assert( memIsValid(&r.aMem[i]) ); }
#endif
      ExpandBlob(r.aMem);
      rc = sqlite3BtreeMovetoUnpacked(pC->pCursor, &r, 0, 0, &res);
      if( rc!=SQLITE_OK ){
        goto abort_due_to_error;
      }
      pC->rowidIsValid = 0;
    }
    pC->deferredMoveto = 0;
    pC->cacheStatus = CACHE_STALE;
#ifdef SQLITE_TEST
    sqlite3_search_count++;
#endif
    if( oc>=OP_SeekGe ){  assert( oc==OP_SeekGe || oc==OP_SeekGt );
      if( res<0 || (res==0 && oc==OP_SeekGt) ){
        rc = sqlite3BtreeNext(pC->pCursor, &res);
        if( rc!=SQLITE_OK ) goto abort_due_to_error;
        pC->rowidIsValid = 0;
      }else{
        res = 0;
      }
    }else{
      assert( oc==OP_SeekLt || oc==OP_SeekLe );
      if( res>0 || (res==0 && oc==OP_SeekLt) ){
        rc = sqlite3BtreePrevious(pC->pCursor, &res);
        if( rc!=SQLITE_OK ) goto abort_due_to_error;
        pC->rowidIsValid = 0;
      }else{
        /* res might be negative because the table is empty.  Check to
        ** see if this is the case.
        */
        res = sqlite3BtreeEof(pC->pCursor);
      }
    }
    assert( pOp->p2>0 );
    if( res ){
      pc = pOp->p2 - 1;
    }
  }else{
    /* This happens when attempting to open the sqlite3_master table
    ** for read access returns SQLITE_EMPTY. In this case always
    ** take the jump (since there are no records in the table).
    */
    pc = pOp->p2 - 1;
  }
  break;
}

/* Opcode: Seek P1 P2 * * *
** Synopsis:  intkey=r[P2]







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  pC = p->apCsr[pOp->p1];
  assert( pC!=0 );
  assert( pC->pseudoTableReg==0 );
  assert( OP_SeekLe == OP_SeekLt+1 );
  assert( OP_SeekGe == OP_SeekLt+2 );
  assert( OP_SeekGt == OP_SeekLt+3 );
  assert( pC->isOrdered );
  assert( pC->pCursor!=0 );
  oc = pOp->opcode;
  pC->nullRow = 0;
  if( pC->isTable ){
    /* The input value in P3 might be of any type: integer, real, string,
    ** blob, or NULL.  But it needs to be an integer before we can do
    ** the seek, so covert it. */
    pIn3 = &aMem[pOp->p3];
    applyNumericAffinity(pIn3);
    iKey = sqlite3VdbeIntValue(pIn3);
    pC->rowidIsValid = 0;

    /* If the P3 value could not be converted into an integer without
    ** loss of information, then special processing is required... */
    if( (pIn3->flags & MEM_Int)==0 ){
      if( (pIn3->flags & MEM_Real)==0 ){
        /* If the P3 value cannot be converted into any kind of a number,
        ** then the seek is not possible, so jump to P2 */
        pc = pOp->p2 - 1;
        break;
      }
      /* If we reach this point, then the P3 value must be a floating
      ** point number. */
      assert( (pIn3->flags & MEM_Real)!=0 );

      if( iKey==SMALLEST_INT64 && (pIn3->r<(double)iKey || pIn3->r>0) ){
        /* The P3 value is too large in magnitude to be expressed as an
        ** integer. */
        res = 1;
        if( pIn3->r<0 ){
          if( oc>=OP_SeekGe ){  assert( oc==OP_SeekGe || oc==OP_SeekGt );
            rc = sqlite3BtreeFirst(pC->pCursor, &res);
            if( rc!=SQLITE_OK ) goto abort_due_to_error;
          }
        }else{
          if( oc<=OP_SeekLe ){  assert( oc==OP_SeekLt || oc==OP_SeekLe );
            rc = sqlite3BtreeLast(pC->pCursor, &res);
            if( rc!=SQLITE_OK ) goto abort_due_to_error;
          }
        }
        if( res ){
          pc = pOp->p2 - 1;
        }
        break;
      }else if( oc==OP_SeekLt || oc==OP_SeekGe ){
        /* Use the ceiling() function to convert real->int */
        if( pIn3->r > (double)iKey ) iKey++;
      }else{
        /* Use the floor() function to convert real->int */
        assert( oc==OP_SeekLe || oc==OP_SeekGt );
        if( pIn3->r < (double)iKey ) iKey--;
      }
    } 
    rc = sqlite3BtreeMovetoUnpacked(pC->pCursor, 0, (u64)iKey, 0, &res);
    if( rc!=SQLITE_OK ){
      goto abort_due_to_error;
    }
    if( res==0 ){
      pC->rowidIsValid = 1;
      pC->lastRowid = iKey;
    }
  }else{
    nField = pOp->p4.i;
    assert( pOp->p4type==P4_INT32 );
    assert( nField>0 );
    r.pKeyInfo = pC->pKeyInfo;
    r.nField = (u16)nField;

    /* The next line of code computes as follows, only faster:
    **   if( oc==OP_SeekGt || oc==OP_SeekLe ){
    **     r.flags = UNPACKED_INCRKEY;
    **   }else{
    **     r.flags = 0;
    **   }
    */
    r.flags = (u8)(UNPACKED_INCRKEY * (1 & (oc - OP_SeekLt)));
    assert( oc!=OP_SeekGt || r.flags==UNPACKED_INCRKEY );
    assert( oc!=OP_SeekLe || r.flags==UNPACKED_INCRKEY );
    assert( oc!=OP_SeekGe || r.flags==0 );
    assert( oc!=OP_SeekLt || r.flags==0 );

    r.aMem = &aMem[pOp->p3];
#ifdef SQLITE_DEBUG
    { int i; for(i=0; i<r.nField; i++) assert( memIsValid(&r.aMem[i]) ); }
#endif
    ExpandBlob(r.aMem);
    rc = sqlite3BtreeMovetoUnpacked(pC->pCursor, &r, 0, 0, &res);
    if( rc!=SQLITE_OK ){
      goto abort_due_to_error;
    }
    pC->rowidIsValid = 0;
  }
  pC->deferredMoveto = 0;
  pC->cacheStatus = CACHE_STALE;
#ifdef SQLITE_TEST
  sqlite3_search_count++;
#endif
  if( oc>=OP_SeekGe ){  assert( oc==OP_SeekGe || oc==OP_SeekGt );
    if( res<0 || (res==0 && oc==OP_SeekGt) ){
      rc = sqlite3BtreeNext(pC->pCursor, &res);
      if( rc!=SQLITE_OK ) goto abort_due_to_error;
      pC->rowidIsValid = 0;
    }else{
      res = 0;
    }
  }else{
    assert( oc==OP_SeekLt || oc==OP_SeekLe );
    if( res>0 || (res==0 && oc==OP_SeekLt) ){
      rc = sqlite3BtreePrevious(pC->pCursor, &res);
      if( rc!=SQLITE_OK ) goto abort_due_to_error;
      pC->rowidIsValid = 0;
    }else{
      /* res might be negative because the table is empty.  Check to
      ** see if this is the case.
      */
      res = sqlite3BtreeEof(pC->pCursor);
    }
  }
  assert( pOp->p2>0 );
  if( res ){







    pc = pOp->p2 - 1;
  }
  break;
}

/* Opcode: Seek P1 P2 * * *
** Synopsis:  intkey=r[P2]
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*/
case OP_Seek: {    /* in2 */
  VdbeCursor *pC;

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  pC = p->apCsr[pOp->p1];
  assert( pC!=0 );
  if( ALWAYS(pC->pCursor!=0) ){
    assert( pC->isTable );
    pC->nullRow = 0;
    pIn2 = &aMem[pOp->p2];
    pC->movetoTarget = sqlite3VdbeIntValue(pIn2);
    pC->rowidIsValid = 0;
    pC->deferredMoveto = 1;
  }
  break;
}
  

/* Opcode: Found P1 P2 P3 P4 *
** Synopsis: key=r[P3@P4]
**







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*/
case OP_Seek: {    /* in2 */
  VdbeCursor *pC;

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  pC = p->apCsr[pOp->p1];
  assert( pC!=0 );
  assert( pC->pCursor!=0 );
  assert( pC->isTable );
  pC->nullRow = 0;
  pIn2 = &aMem[pOp->p2];
  pC->movetoTarget = sqlite3VdbeIntValue(pIn2);
  pC->rowidIsValid = 0;
  pC->deferredMoveto = 1;

  break;
}
  

/* Opcode: Found P1 P2 P3 P4 *
** Synopsis: key=r[P3@P4]
**
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  alreadyExists = 0;
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  assert( pOp->p4type==P4_INT32 );
  pC = p->apCsr[pOp->p1];
  assert( pC!=0 );
  pIn3 = &aMem[pOp->p3];
  if( ALWAYS(pC->pCursor!=0) ){

    assert( pC->isTable==0 );
    if( pOp->p4.i>0 ){
      r.pKeyInfo = pC->pKeyInfo;
      r.nField = (u16)pOp->p4.i;
      r.aMem = pIn3;
#ifdef SQLITE_DEBUG
      {
        int i;
        for(i=0; i<r.nField; i++){
          assert( memIsValid(&r.aMem[i]) );
          if( i ) REGISTER_TRACE(pOp->p3+i, &r.aMem[i]);
        }
      }
#endif
      r.flags = UNPACKED_PREFIX_MATCH;
      pIdxKey = &r;
    }else{
      pIdxKey = sqlite3VdbeAllocUnpackedRecord(
          pC->pKeyInfo, aTempRec, sizeof(aTempRec), &pFree
      ); 
      if( pIdxKey==0 ) goto no_mem;
      assert( pIn3->flags & MEM_Blob );
      assert( (pIn3->flags & MEM_Zero)==0 );  /* zeroblobs already expanded */
      sqlite3VdbeRecordUnpack(pC->pKeyInfo, pIn3->n, pIn3->z, pIdxKey);
      pIdxKey->flags |= UNPACKED_PREFIX_MATCH;
    }
    if( pOp->opcode==OP_NoConflict ){
      /* For the OP_NoConflict opcode, take the jump if any of the
      ** input fields are NULL, since any key with a NULL will not
      ** conflict */
      for(ii=0; ii<r.nField; ii++){
        if( r.aMem[ii].flags & MEM_Null ){
          pc = pOp->p2 - 1;
          break;
        }
      }
    }
    rc = sqlite3BtreeMovetoUnpacked(pC->pCursor, pIdxKey, 0, 0, &res);
    if( pOp->p4.i==0 ){
      sqlite3DbFree(db, pFree);
    }
    if( rc!=SQLITE_OK ){
      break;
    }
    pC->seekResult = res;
    alreadyExists = (res==0);
    pC->nullRow = 1-alreadyExists;
    pC->deferredMoveto = 0;
    pC->cacheStatus = CACHE_STALE;
  }
  if( pOp->opcode==OP_Found ){
    if( alreadyExists ) pc = pOp->p2 - 1;
  }else{
    if( !alreadyExists ) pc = pOp->p2 - 1;
  }
  break;
}







|
<
|
|
|
|
|

|
|
|
|
|
|
|

|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
<







3743
3744
3745
3746
3747
3748
3749
3750

3751
3752
3753
3754
3755
3756
3757
3758
3759
3760
3761
3762
3763
3764
3765
3766
3767
3768
3769
3770
3771
3772
3773
3774
3775
3776
3777
3778
3779
3780
3781
3782
3783
3784
3785
3786
3787
3788
3789
3790
3791
3792
3793
3794
3795
3796
3797
3798
3799

3800
3801
3802
3803
3804
3805
3806

  alreadyExists = 0;
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  assert( pOp->p4type==P4_INT32 );
  pC = p->apCsr[pOp->p1];
  assert( pC!=0 );
  pIn3 = &aMem[pOp->p3];
  assert( pC->pCursor!=0 );

  assert( pC->isTable==0 );
  if( pOp->p4.i>0 ){
    r.pKeyInfo = pC->pKeyInfo;
    r.nField = (u16)pOp->p4.i;
    r.aMem = pIn3;
#ifdef SQLITE_DEBUG
    {
      int i;
      for(i=0; i<r.nField; i++){
        assert( memIsValid(&r.aMem[i]) );
        if( i ) REGISTER_TRACE(pOp->p3+i, &r.aMem[i]);
      }
    }
#endif
    r.flags = UNPACKED_PREFIX_MATCH;
    pIdxKey = &r;
  }else{
    pIdxKey = sqlite3VdbeAllocUnpackedRecord(
        pC->pKeyInfo, aTempRec, sizeof(aTempRec), &pFree
    ); 
    if( pIdxKey==0 ) goto no_mem;
    assert( pIn3->flags & MEM_Blob );
    assert( (pIn3->flags & MEM_Zero)==0 );  /* zeroblobs already expanded */
    sqlite3VdbeRecordUnpack(pC->pKeyInfo, pIn3->n, pIn3->z, pIdxKey);
    pIdxKey->flags |= UNPACKED_PREFIX_MATCH;
  }
  if( pOp->opcode==OP_NoConflict ){
    /* For the OP_NoConflict opcode, take the jump if any of the
    ** input fields are NULL, since any key with a NULL will not
    ** conflict */
    for(ii=0; ii<r.nField; ii++){
      if( r.aMem[ii].flags & MEM_Null ){
        pc = pOp->p2 - 1;
        break;
      }
    }
  }
  rc = sqlite3BtreeMovetoUnpacked(pC->pCursor, pIdxKey, 0, 0, &res);
  if( pOp->p4.i==0 ){
    sqlite3DbFree(db, pFree);
  }
  if( rc!=SQLITE_OK ){
    break;
  }
  pC->seekResult = res;
  alreadyExists = (res==0);
  pC->nullRow = 1-alreadyExists;
  pC->deferredMoveto = 0;
  pC->cacheStatus = CACHE_STALE;

  if( pOp->opcode==OP_Found ){
    if( alreadyExists ) pc = pOp->p2 - 1;
  }else{
    if( !alreadyExists ) pc = pOp->p2 - 1;
  }
  break;
}
3844
3845
3846
3847
3848
3849
3850
3851
3852
3853
3854
3855
3856
3857
3858
3859
3860
3861
3862
3863
3864
3865
3866
3867
3868
3869
3870
3871
3872
3873
3874
3875
3876
3877
3878
3879
  assert( pIn3->flags & MEM_Int );
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  pC = p->apCsr[pOp->p1];
  assert( pC!=0 );
  assert( pC->isTable );
  assert( pC->pseudoTableReg==0 );
  pCrsr = pC->pCursor;
  if( ALWAYS(pCrsr!=0) ){
    res = 0;
    iKey = pIn3->u.i;
    rc = sqlite3BtreeMovetoUnpacked(pCrsr, 0, iKey, 0, &res);
    pC->lastRowid = pIn3->u.i;
    pC->rowidIsValid = res==0 ?1:0;
    pC->nullRow = 0;
    pC->cacheStatus = CACHE_STALE;
    pC->deferredMoveto = 0;
    if( res!=0 ){
      pc = pOp->p2 - 1;
      assert( pC->rowidIsValid==0 );
    }
    pC->seekResult = res;
  }else{
    /* This happens when an attempt to open a read cursor on the 
    ** sqlite_master table returns SQLITE_EMPTY.
    */
    pc = pOp->p2 - 1;
    assert( pC->rowidIsValid==0 );
    pC->seekResult = 0;
  }
  break;
}

/* Opcode: Sequence P1 P2 * * *
** Synopsis: r[P2]=rowid
**
** Find the next available sequence number for cursor P1.







|
|
|
|
|
|
|
|
|
|
|
|
|
|
<
<
<
<
<
<
<
<







3829
3830
3831
3832
3833
3834
3835
3836
3837
3838
3839
3840
3841
3842
3843
3844
3845
3846
3847
3848
3849








3850
3851
3852
3853
3854
3855
3856
  assert( pIn3->flags & MEM_Int );
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  pC = p->apCsr[pOp->p1];
  assert( pC!=0 );
  assert( pC->isTable );
  assert( pC->pseudoTableReg==0 );
  pCrsr = pC->pCursor;
  assert( pCrsr!=0 );
  res = 0;
  iKey = pIn3->u.i;
  rc = sqlite3BtreeMovetoUnpacked(pCrsr, 0, iKey, 0, &res);
  pC->lastRowid = pIn3->u.i;
  pC->rowidIsValid = res==0 ?1:0;
  pC->nullRow = 0;
  pC->cacheStatus = CACHE_STALE;
  pC->deferredMoveto = 0;
  if( res!=0 ){
    pc = pOp->p2 - 1;
    assert( pC->rowidIsValid==0 );
  }
  pC->seekResult = res;








  break;
}

/* Opcode: Sequence P1 P2 * * *
** Synopsis: r[P2]=rowid
**
** Find the next available sequence number for cursor P1.
4445
4446
4447
4448
4449
4450
4451
4452
4453
4454
4455
4456
4457
4458
4459
4460
4461
  int res;

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  pC = p->apCsr[pOp->p1];
  assert( pC!=0 );
  pCrsr = pC->pCursor;
  res = 0;
  if( ALWAYS(pCrsr!=0) ){
    rc = sqlite3BtreeLast(pCrsr, &res);
  }
  pC->nullRow = (u8)res;
  pC->deferredMoveto = 0;
  pC->rowidIsValid = 0;
  pC->cacheStatus = CACHE_STALE;
  if( pOp->p2>0 && res ){
    pc = pOp->p2 - 1;
  }







|
|
<







4422
4423
4424
4425
4426
4427
4428
4429
4430

4431
4432
4433
4434
4435
4436
4437
  int res;

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  pC = p->apCsr[pOp->p1];
  assert( pC!=0 );
  pCrsr = pC->pCursor;
  res = 0;
  assert( pCrsr!=0 );
  rc = sqlite3BtreeLast(pCrsr, &res);

  pC->nullRow = (u8)res;
  pC->deferredMoveto = 0;
  pC->rowidIsValid = 0;
  pC->cacheStatus = CACHE_STALE;
  if( pOp->p2>0 && res ){
    pc = pOp->p2 - 1;
  }
4614
4615
4616
4617
4618
4619
4620
4621
4622
4623
4624
4625
4626
4627
4628
4629
4630
4631
4632
4633
4634
4635
4636
4637
4638
4639
4640
4641
4642
  pC = p->apCsr[pOp->p1];
  assert( pC!=0 );
  assert( pC->isSorter==(pOp->opcode==OP_SorterInsert) );
  pIn2 = &aMem[pOp->p2];
  assert( pIn2->flags & MEM_Blob );
  pCrsr = pC->pCursor;
  if( pOp->p5 & OPFLAG_NCHANGE ) p->nChange++;
  if( ALWAYS(pCrsr!=0) ){
    assert( pC->isTable==0 );
    rc = ExpandBlob(pIn2);
    if( rc==SQLITE_OK ){
      if( isSorter(pC) ){
        rc = sqlite3VdbeSorterWrite(db, pC, pIn2);
      }else{
        nKey = pIn2->n;
        zKey = pIn2->z;
        rc = sqlite3BtreeInsert(pCrsr, zKey, nKey, "", 0, 0, pOp->p3, 
            ((pOp->p5 & OPFLAG_USESEEKRESULT) ? pC->seekResult : 0)
            );
        assert( pC->deferredMoveto==0 );
        pC->cacheStatus = CACHE_STALE;
      }
    }
  }
  break;
}

/* Opcode: IdxDelete P1 P2 P3 * P5
** Synopsis: key=r[P2@P3]







|
|
|
|
|
|
|
|
|
|
|
|
|
|
<







4590
4591
4592
4593
4594
4595
4596
4597
4598
4599
4600
4601
4602
4603
4604
4605
4606
4607
4608
4609
4610

4611
4612
4613
4614
4615
4616
4617
  pC = p->apCsr[pOp->p1];
  assert( pC!=0 );
  assert( pC->isSorter==(pOp->opcode==OP_SorterInsert) );
  pIn2 = &aMem[pOp->p2];
  assert( pIn2->flags & MEM_Blob );
  pCrsr = pC->pCursor;
  if( pOp->p5 & OPFLAG_NCHANGE ) p->nChange++;
  assert( pCrsr!=0 );
  assert( pC->isTable==0 );
  rc = ExpandBlob(pIn2);
  if( rc==SQLITE_OK ){
    if( isSorter(pC) ){
      rc = sqlite3VdbeSorterWrite(db, pC, pIn2);
    }else{
      nKey = pIn2->n;
      zKey = pIn2->z;
      rc = sqlite3BtreeInsert(pCrsr, zKey, nKey, "", 0, 0, pOp->p3, 
          ((pOp->p5 & OPFLAG_USESEEKRESULT) ? pC->seekResult : 0)
          );
      assert( pC->deferredMoveto==0 );
      pC->cacheStatus = CACHE_STALE;

    }
  }
  break;
}

/* Opcode: IdxDelete P1 P2 P3 * P5
** Synopsis: key=r[P2@P3]
4653
4654
4655
4656
4657
4658
4659

4660
4661
4662
4663
4664
4665
4666
4667
4668
4669
4670
4671
4672
4673
4674
4675
4676
4677
4678
4679
4680
4681
4682

  assert( pOp->p3>0 );
  assert( pOp->p2>0 && pOp->p2+pOp->p3<=(p->nMem-p->nCursor)+1 );
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  pC = p->apCsr[pOp->p1];
  assert( pC!=0 );
  pCrsr = pC->pCursor;

  if( pOp->p5 & OPFLAG_NCHANGE ) p->nChange++;
  if( ALWAYS(pCrsr!=0) ){
    r.pKeyInfo = pC->pKeyInfo;
    r.nField = (u16)pOp->p3;
    r.flags = UNPACKED_PREFIX_MATCH;
    r.aMem = &aMem[pOp->p2];
#ifdef SQLITE_DEBUG
    { int i; for(i=0; i<r.nField; i++) assert( memIsValid(&r.aMem[i]) ); }
#endif
    rc = sqlite3BtreeMovetoUnpacked(pCrsr, &r, 0, 0, &res);
    if( rc==SQLITE_OK && res==0 ){
      rc = sqlite3BtreeDelete(pCrsr);
    }
    assert( pC->deferredMoveto==0 );
    pC->cacheStatus = CACHE_STALE;
  }
  break;
}

/* Opcode: IdxRowid P1 P2 * * *
** Synopsis: r[P2]=rowid
**
** Write into register P2 an integer which is the last entry in the record at







>

<
|
|
|
|

|

|
|
|
|
|
|
<







4628
4629
4630
4631
4632
4633
4634
4635
4636

4637
4638
4639
4640
4641
4642
4643
4644
4645
4646
4647
4648
4649

4650
4651
4652
4653
4654
4655
4656

  assert( pOp->p3>0 );
  assert( pOp->p2>0 && pOp->p2+pOp->p3<=(p->nMem-p->nCursor)+1 );
  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  pC = p->apCsr[pOp->p1];
  assert( pC!=0 );
  pCrsr = pC->pCursor;
  assert( pCrsr!=0 );
  if( pOp->p5 & OPFLAG_NCHANGE ) p->nChange++;

  r.pKeyInfo = pC->pKeyInfo;
  r.nField = (u16)pOp->p3;
  r.flags = UNPACKED_PREFIX_MATCH;
  r.aMem = &aMem[pOp->p2];
#ifdef SQLITE_DEBUG
  { int i; for(i=0; i<r.nField; i++) assert( memIsValid(&r.aMem[i]) ); }
#endif
  rc = sqlite3BtreeMovetoUnpacked(pCrsr, &r, 0, 0, &res);
  if( rc==SQLITE_OK && res==0 ){
    rc = sqlite3BtreeDelete(pCrsr);
  }
  assert( pC->deferredMoveto==0 );
  pC->cacheStatus = CACHE_STALE;

  break;
}

/* Opcode: IdxRowid P1 P2 * * *
** Synopsis: r[P2]=rowid
**
** Write into register P2 an integer which is the last entry in the record at
4690
4691
4692
4693
4694
4695
4696

4697
4698
4699
4700
4701
4702
4703
4704
4705
4706
4707
4708
4709
4710
4711
4712
4713
4714
4715
4716
4717
  VdbeCursor *pC;
  i64 rowid;

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  pC = p->apCsr[pOp->p1];
  assert( pC!=0 );
  pCrsr = pC->pCursor;

  pOut->flags = MEM_Null;
  if( ALWAYS(pCrsr!=0) ){
    rc = sqlite3VdbeCursorMoveto(pC);
    if( NEVER(rc) ) goto abort_due_to_error;
    assert( pC->deferredMoveto==0 );
    assert( pC->isTable==0 );
    if( !pC->nullRow ){
      rc = sqlite3VdbeIdxRowid(db, pCrsr, &rowid);
      if( rc!=SQLITE_OK ){
        goto abort_due_to_error;
      }
      pOut->u.i = rowid;
      pOut->flags = MEM_Int;
    }
  }
  break;
}

/* Opcode: IdxGE P1 P2 P3 P4 P5
** Synopsis: key=r[P3@P4]
**







>

<
|
|
|
|
|
|
|
|
|
|
|
<







4664
4665
4666
4667
4668
4669
4670
4671
4672

4673
4674
4675
4676
4677
4678
4679
4680
4681
4682
4683

4684
4685
4686
4687
4688
4689
4690
  VdbeCursor *pC;
  i64 rowid;

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  pC = p->apCsr[pOp->p1];
  assert( pC!=0 );
  pCrsr = pC->pCursor;
  assert( pCrsr!=0 );
  pOut->flags = MEM_Null;

  rc = sqlite3VdbeCursorMoveto(pC);
  if( NEVER(rc) ) goto abort_due_to_error;
  assert( pC->deferredMoveto==0 );
  assert( pC->isTable==0 );
  if( !pC->nullRow ){
    rc = sqlite3VdbeIdxRowid(db, pCrsr, &rowid);
    if( rc!=SQLITE_OK ){
      goto abort_due_to_error;
    }
    pOut->u.i = rowid;
    pOut->flags = MEM_Int;

  }
  break;
}

/* Opcode: IdxGE P1 P2 P3 P4 P5
** Synopsis: key=r[P3@P4]
**
4746
4747
4748
4749
4750
4751
4752
4753
4754
4755
4756
4757
4758
4759
4760
4761
4762
4763
4764
4765
4766
4767
4768
4769
4770
4771
4772
4773
4774
4775
4776
4777
4778
4779
4780
4781
4782
4783
4784
  int res;
  UnpackedRecord r;

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  pC = p->apCsr[pOp->p1];
  assert( pC!=0 );
  assert( pC->isOrdered );
  if( ALWAYS(pC->pCursor!=0) ){
    assert( pC->deferredMoveto==0 );
    assert( pOp->p5==0 || pOp->p5==1 );
    assert( pOp->p4type==P4_INT32 );
    r.pKeyInfo = pC->pKeyInfo;
    r.nField = (u16)pOp->p4.i;
    if( pOp->p5 ){
      r.flags = UNPACKED_INCRKEY | UNPACKED_PREFIX_MATCH;
    }else{
      r.flags = UNPACKED_PREFIX_MATCH;
    }
    r.aMem = &aMem[pOp->p3];
#ifdef SQLITE_DEBUG
    { int i; for(i=0; i<r.nField; i++) assert( memIsValid(&r.aMem[i]) ); }
#endif
    rc = sqlite3VdbeIdxKeyCompare(pC, &r, &res);
    if( pOp->opcode==OP_IdxLT ){
      res = -res;
    }else{
      assert( pOp->opcode==OP_IdxGE );
      res++;
    }
    if( res>0 ){
      pc = pOp->p2 - 1 ;
    }
  }
  break;
}

/* Opcode: Destroy P1 P2 P3 * *
**
** Delete an entire database table or index whose root page in the database







|
|
|
|
|
|
|
|
|
|
|
|

|

|
|
|
|
|
|
|
|
|
<







4719
4720
4721
4722
4723
4724
4725
4726
4727
4728
4729
4730
4731
4732
4733
4734
4735
4736
4737
4738
4739
4740
4741
4742
4743
4744
4745
4746
4747
4748
4749

4750
4751
4752
4753
4754
4755
4756
  int res;
  UnpackedRecord r;

  assert( pOp->p1>=0 && pOp->p1<p->nCursor );
  pC = p->apCsr[pOp->p1];
  assert( pC!=0 );
  assert( pC->isOrdered );
  assert( pC->pCursor!=0);
  assert( pC->deferredMoveto==0 );
  assert( pOp->p5==0 || pOp->p5==1 );
  assert( pOp->p4type==P4_INT32 );
  r.pKeyInfo = pC->pKeyInfo;
  r.nField = (u16)pOp->p4.i;
  if( pOp->p5 ){
    r.flags = UNPACKED_INCRKEY | UNPACKED_PREFIX_MATCH;
  }else{
    r.flags = UNPACKED_PREFIX_MATCH;
  }
  r.aMem = &aMem[pOp->p3];
#ifdef SQLITE_DEBUG
  { int i; for(i=0; i<r.nField; i++) assert( memIsValid(&r.aMem[i]) ); }
#endif
  rc = sqlite3VdbeIdxKeyCompare(pC, &r, &res);
  if( pOp->opcode==OP_IdxLT ){
    res = -res;
  }else{
    assert( pOp->opcode==OP_IdxGE );
    res++;
  }
  if( res>0 ){
    pc = pOp->p2 - 1 ;

  }
  break;
}

/* Opcode: Destroy P1 P2 P3 * *
**
** Delete an entire database table or index whose root page in the database