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Overview
Comment:If the initial byte of a record is a large value, then always used the generalized record comparison routine sqlite3VdbeRecordCompare() rather than one of the specialized versions that are optimized for shorter records.
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SHA3-256: c1ac00706bae45fe9735061ada025880606cdfb8ecfdaa36b4e2d04275820861
User & Date: drh 2019-03-05 14:39:00.353
Context
2019-03-05
14:47
New dbfuzz2 test cases added to test/fuzzdata7.db (check-in: 25975e1fb2 user: drh tags: trunk)
14:39
If the initial byte of a record is a large value, then always used the generalized record comparison routine sqlite3VdbeRecordCompare() rather than one of the specialized versions that are optimized for shorter records. (check-in: c1ac00706b user: drh tags: trunk)
2019-03-04
07:15
Fix a problem preventing compilation with SQLITE_OMIT_UTF16. (check-in: 906d1fd865 user: dan tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to src/btree.c.
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          pCur->ix = (u16)idx;
          rc = accessPayload(pCur, 0, nCell, (unsigned char*)pCellKey, 0);
          pCur->curFlags &= ~BTCF_ValidOvfl;
          if( rc ){
            sqlite3_free(pCellKey);
            goto moveto_finish;
          }
          c = xRecordCompare(nCell, pCellKey, pIdxKey);
          sqlite3_free(pCellKey);
        }
        assert( 
            (pIdxKey->errCode!=SQLITE_CORRUPT || c==0)
         && (pIdxKey->errCode!=SQLITE_NOMEM || pCur->pBtree->db->mallocFailed)
        );
        if( c<0 ){








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5548
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5551
5552
5553
5554
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          pCur->ix = (u16)idx;
          rc = accessPayload(pCur, 0, nCell, (unsigned char*)pCellKey, 0);
          pCur->curFlags &= ~BTCF_ValidOvfl;
          if( rc ){
            sqlite3_free(pCellKey);
            goto moveto_finish;
          }
          c = sqlite3VdbeRecordCompare(nCell, pCellKey, pIdxKey);
          sqlite3_free(pCellKey);
        }
        assert( 
            (pIdxKey->errCode!=SQLITE_CORRUPT || c==0)
         && (pIdxKey->errCode!=SQLITE_NOMEM || pCur->pBtree->db->mallocFailed)
        );
        if( c<0 ){
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