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Overview
Comment:Fix a bug in lsm queries on levels undergoing incremental an merge that contain range-delete markers.
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SHA3-256: b2c2487928becbea5a932895d153709c98a057a3c71c2600e165478562e9f7c5
User & Date: dan 2017-07-03 20:19:28.955
Context
2017-07-03
21:09
Fix compiler warnings in LSM1, especially in the test logic. (check-in: 9bd3be92b8 user: drh tags: trunk)
20:19
Fix a bug in lsm queries on levels undergoing incremental an merge that contain range-delete markers. (check-in: b2c2487928 user: dan tags: trunk)
17:37
Attempt to improve documentation on sqlite3_column_ and sqlite3_value_ interfaces. (check-in: 9111ac69bf user: drh tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to ext/lsm1/lsm_sorted.c.
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      /* If the segment-pointer has settled on a key that is smaller than
      ** the splitkey, invalidate the segment-pointer.  */
      if( pPtr->pPg ){
        res = sortedKeyCompare(pCsr->pDb->xCmp, 
            rtTopic(pPtr->eType), pPtr->pKey, pPtr->nKey, 
            pLvl->iSplitTopic, pLvl->pSplitKey, pLvl->nSplitKey
        );








        if( res<0 ) segmentPtrReset(pPtr, LSM_SEGMENTPTR_FREE_THRESHOLD);


      }

      if( aPtr[i].pKey ) bHit = 1;
    }

    if( rc==LSM_OK && eSeek==LSM_SEEK_LE && bHit==0 ){
      rc = segmentPtrEnd(pCsr, &aPtr[0], 1);








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      /* If the segment-pointer has settled on a key that is smaller than
      ** the splitkey, invalidate the segment-pointer.  */
      if( pPtr->pPg ){
        res = sortedKeyCompare(pCsr->pDb->xCmp, 
            rtTopic(pPtr->eType), pPtr->pKey, pPtr->nKey, 
            pLvl->iSplitTopic, pLvl->pSplitKey, pLvl->nSplitKey
        );
        if( res<0 ){
          if( pPtr->eType & LSM_START_DELETE ){
            pPtr->eType &= ~LSM_INSERT;
            pPtr->pKey = pLvl->pSplitKey;
            pPtr->nKey = pLvl->nSplitKey;
            pPtr->pVal = 0;
            pPtr->nVal = 0;
          }else{
            segmentPtrReset(pPtr, LSM_SEGMENTPTR_FREE_THRESHOLD);
          }
        }
      }

      if( aPtr[i].pKey ) bHit = 1;
    }

    if( rc==LSM_OK && eSeek==LSM_SEEK_LE && bHit==0 ){
      rc = segmentPtrEnd(pCsr, &aPtr[0], 1);
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