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Comment:Backport the SQLITE_OMIT_UNIQUE_ENFORCEMENT change from check-in [b86999436e] on the trunk.
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Timelines: family | ancestors | descendants | both | branch-3.7.2
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SHA1: 668b91dbff036c6b76a5611cc3ebe455d277ed59
User & Date: shaneh 2011-03-12 05:55:38
Original Comment: Backport the SQLITE_OMIT_UNIQUE_ENFORCEMENT change from checkin b86999436e on the trunk.
Context
2011-03-17
01:53
Backport the "x IS NULL" query planner enhancement of [2353176811f] to the 3.7.2 branch. (check-in: 68daf20d user: drh tags: branch-3.7.2)
2011-03-12
05:55
Backport the SQLITE_OMIT_UNIQUE_ENFORCEMENT change from check-in [b86999436e] on the trunk. (check-in: 668b91db user: shaneh tags: branch-3.7.2)
2011-03-09
22:09
Backport the OP_Next and OP_Prev for UNIQUE indices patch from checkin [f000c9b2b7] on the trunk. (check-in: 2d55234e user: drh tags: branch-3.7.2)
Changes
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Changes to src/ctime.c. 

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  "OMIT_TRACE",
#endif
#ifdef SQLITE_OMIT_TRIGGER
  "OMIT_TRIGGER",
#endif
#ifdef SQLITE_OMIT_TRUNCATE_OPTIMIZATION
  "OMIT_TRUNCATE_OPTIMIZATION",



#endif
#ifdef SQLITE_OMIT_UTF16
  "OMIT_UTF16",
#endif
#ifdef SQLITE_OMIT_VACUUM
  "OMIT_VACUUM",
#endif








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  "OMIT_TRACE",
#endif
#ifdef SQLITE_OMIT_TRIGGER
  "OMIT_TRIGGER",
#endif
#ifdef SQLITE_OMIT_TRUNCATE_OPTIMIZATION
  "OMIT_TRUNCATE_OPTIMIZATION",
#endif
#ifdef SQLITE_OMIT_UNIQUE_ENFORCEMENT
  "OMIT_UNIQUE_ENFORCEMENT",
#endif
#ifdef SQLITE_OMIT_UTF16
  "OMIT_UTF16",
#endif
#ifdef SQLITE_OMIT_VACUUM
  "OMIT_VACUUM",
#endif

Changes to src/insert.c. 

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  /* Test all UNIQUE constraints by creating entries for each UNIQUE
  ** index and making sure that duplicate entries do not already exist.
  ** Add the new records to the indices as we go.
  */
  for(iCur=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, iCur++){
    int regIdx;

    int regR;


    if( aRegIdx[iCur]==0 ) continue;  /* Skip unused indices */

    /* Create a key for accessing the index entry */
    regIdx = sqlite3GetTempRange(pParse, pIdx->nColumn+1);
    for(i=0; i<pIdx->nColumn; i++){
      int idx = pIdx->aiColumn[i];
................................................................................
        sqlite3VdbeAddOp2(v, OP_SCopy, regData+idx, regIdx+i);
      }
    }
    sqlite3VdbeAddOp2(v, OP_SCopy, regRowid, regIdx+i);
    sqlite3VdbeAddOp3(v, OP_MakeRecord, regIdx, pIdx->nColumn+1, aRegIdx[iCur]);
    sqlite3VdbeChangeP4(v, -1, sqlite3IndexAffinityStr(v, pIdx), 0);
    sqlite3ExprCacheAffinityChange(pParse, regIdx, pIdx->nColumn+1);






    /* Find out what action to take in case there is an indexing conflict */
    onError = pIdx->onError;
    if( onError==OE_None ){ 
      sqlite3ReleaseTempRange(pParse, regIdx, pIdx->nColumn+1);
      continue;  /* pIdx is not a UNIQUE index */
    }
................................................................................
        );
        seenReplace = 1;
        break;
      }
    }
    sqlite3VdbeJumpHere(v, j3);
    sqlite3ReleaseTempReg(pParse, regR);

  }
  
  if( pbMayReplace ){
    *pbMayReplace = seenReplace;
  }
}









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  /* Test all UNIQUE constraints by creating entries for each UNIQUE
  ** index and making sure that duplicate entries do not already exist.
  ** Add the new records to the indices as we go.
  */
  for(iCur=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, iCur++){
    int regIdx;
#ifndef SQLITE_OMIT_UNIQUE_ENFORCEMENT
    int regR;
#endif

    if( aRegIdx[iCur]==0 ) continue;  /* Skip unused indices */

    /* Create a key for accessing the index entry */
    regIdx = sqlite3GetTempRange(pParse, pIdx->nColumn+1);
    for(i=0; i<pIdx->nColumn; i++){
      int idx = pIdx->aiColumn[i];
................................................................................
        sqlite3VdbeAddOp2(v, OP_SCopy, regData+idx, regIdx+i);
      }
    }
    sqlite3VdbeAddOp2(v, OP_SCopy, regRowid, regIdx+i);
    sqlite3VdbeAddOp3(v, OP_MakeRecord, regIdx, pIdx->nColumn+1, aRegIdx[iCur]);
    sqlite3VdbeChangeP4(v, -1, sqlite3IndexAffinityStr(v, pIdx), 0);
    sqlite3ExprCacheAffinityChange(pParse, regIdx, pIdx->nColumn+1);

#ifdef SQLITE_OMIT_UNIQUE_ENFORCEMENT
    sqlite3ReleaseTempRange(pParse, regIdx, pIdx->nColumn+1);
    continue;  /* Treat pIdx as if it is not a UNIQUE index */
#else

    /* Find out what action to take in case there is an indexing conflict */
    onError = pIdx->onError;
    if( onError==OE_None ){ 
      sqlite3ReleaseTempRange(pParse, regIdx, pIdx->nColumn+1);
      continue;  /* pIdx is not a UNIQUE index */
    }
................................................................................
        );
        seenReplace = 1;
        break;
      }
    }
    sqlite3VdbeJumpHere(v, j3);
    sqlite3ReleaseTempReg(pParse, regR);
#endif
  }
  
  if( pbMayReplace ){
    *pbMayReplace = seenReplace;
  }
}

Changes to src/test_config.c. 

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#endif

#ifdef SQLITE_OMIT_TRUNCATE_OPTIMIZATION
  Tcl_SetVar2(interp, "sqlite_options", "truncate_opt", "0", TCL_GLOBAL_ONLY);
#else
  Tcl_SetVar2(interp, "sqlite_options", "truncate_opt", "1", TCL_GLOBAL_ONLY);
#endif







#ifdef SQLITE_OMIT_UTF16
  Tcl_SetVar2(interp, "sqlite_options", "utf16", "0", TCL_GLOBAL_ONLY);
#else
  Tcl_SetVar2(interp, "sqlite_options", "utf16", "1", TCL_GLOBAL_ONLY);
#endif









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#endif

#ifdef SQLITE_OMIT_TRUNCATE_OPTIMIZATION
  Tcl_SetVar2(interp, "sqlite_options", "truncate_opt", "0", TCL_GLOBAL_ONLY);
#else
  Tcl_SetVar2(interp, "sqlite_options", "truncate_opt", "1", TCL_GLOBAL_ONLY);
#endif

#ifdef SQLITE_OMIT_UNIQUE_ENFORCEMENT
  Tcl_SetVar2(interp, "sqlite_options", "unique_enforcement", "0", TCL_GLOBAL_ONLY);
#else
  Tcl_SetVar2(interp, "sqlite_options", "unique_enforcement", "1", TCL_GLOBAL_ONLY);
#endif

#ifdef SQLITE_OMIT_UTF16
  Tcl_SetVar2(interp, "sqlite_options", "utf16", "0", TCL_GLOBAL_ONLY);
#else
  Tcl_SetVar2(interp, "sqlite_options", "utf16", "1", TCL_GLOBAL_ONLY);
#endif

Changes to tool/omittest.tcl. 

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    SQLITE_OMIT_CAST                   \
    SQLITE_OMIT_CHECK                  \
    SQLITE_OMIT_COMPLETE               \
    SQLITE_OMIT_COMPOUND_SELECT        \
    SQLITE_OMIT_CONFLICT_CLAUSE        \
    SQLITE_OMIT_DATETIME_FUNCS         \
    SQLITE_OMIT_DECLTYPE               \
    off_SQLITE_OMIT_DISKIO                 \
    SQLITE_OMIT_EXPLAIN                \
    SQLITE_OMIT_FLAG_PRAGMAS           \
    SQLITE_OMIT_FLOATING_POINT         \
    SQLITE_OMIT_FOREIGN_KEY            \
    SQLITE_OMIT_GET_TABLE              \
    SQLITE_OMIT_GLOBALRECOVER          \
    SQLITE_OMIT_INCRBLOB               \
................................................................................
    SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS \
    SQLITE_OMIT_SHARED_CACHE           \
    SQLITE_OMIT_SUBQUERY               \
    SQLITE_OMIT_TCL_VARIABLE           \
    SQLITE_OMIT_TEMPDB                 \
    SQLITE_OMIT_TRACE                  \
    SQLITE_OMIT_TRIGGER                \


    SQLITE_OMIT_UTF16                  \
    SQLITE_OMIT_VACUUM                 \
    SQLITE_OMIT_VIEW                   \
    SQLITE_OMIT_VIRTUALTABLE           \


    SQLITE_OMIT_XFER_OPT               \
  ]

  # Process any command line options.
  process_options $argv
  
  # First try a test with all OMIT symbols except SQLITE_OMIT_FLOATING_POINT 
  # and SQLITE_OMIT_PRAGMA defined. The former doesn't work (causes segfaults)








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    SQLITE_OMIT_CAST                   \
    SQLITE_OMIT_CHECK                  \
    SQLITE_OMIT_COMPLETE               \
    SQLITE_OMIT_COMPOUND_SELECT        \
    SQLITE_OMIT_CONFLICT_CLAUSE        \
    SQLITE_OMIT_DATETIME_FUNCS         \
    SQLITE_OMIT_DECLTYPE               \
    off_SQLITE_OMIT_DISKIO             \
    SQLITE_OMIT_EXPLAIN                \
    SQLITE_OMIT_FLAG_PRAGMAS           \
    SQLITE_OMIT_FLOATING_POINT         \
    SQLITE_OMIT_FOREIGN_KEY            \
    SQLITE_OMIT_GET_TABLE              \
    SQLITE_OMIT_GLOBALRECOVER          \
    SQLITE_OMIT_INCRBLOB               \
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    SQLITE_OMIT_SCHEMA_VERSION_PRAGMAS \
    SQLITE_OMIT_SHARED_CACHE           \
    SQLITE_OMIT_SUBQUERY               \
    SQLITE_OMIT_TCL_VARIABLE           \
    SQLITE_OMIT_TEMPDB                 \
    SQLITE_OMIT_TRACE                  \
    SQLITE_OMIT_TRIGGER                \
    SQLITE_OMIT_TRUNCATE_OPTIMIZATION  \
    SQLITE_OMIT_UNIQUE_ENFORCEMENT     \
    SQLITE_OMIT_UTF16 \
    SQLITE_OMIT_VACUUM \
    SQLITE_OMIT_VIEW \
    SQLITE_OMIT_VIRTUALTABLE \
    SQLITE_OMIT_WAL \
    SQLITE_OMIT_WSD \
    SQLITE_OMIT_XFER_OPT \
  ]

  # Process any command line options.
  process_options $argv
  
  # First try a test with all OMIT symbols except SQLITE_OMIT_FLOATING_POINT 
  # and SQLITE_OMIT_PRAGMA defined. The former doesn't work (causes segfaults)

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