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Overview
Comment:Fix an off-by-one error that messes up the display of loop codes in the ".wheretrace" debugging output for queries with more than 62 candidate loops when SQLITE_ENABLE_WHERETRACE is on.
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SHA3-256:0bbdaf2801e4102d952db65e53962e534b67b8b72e76fadb4ce404a6249129d9
User & Date: drh 2017-06-11 20:17:02
Context
2017-06-13
04:31
Fix the processing of double-negatives in WHERE clause constraints with STAT4. Ticket [cfa2c908f2182] check-in: 35b34bdf user: drh tags: trunk
2017-06-11
20:17
Fix an off-by-one error that messes up the display of loop codes in the ".wheretrace" debugging output for queries with more than 62 candidate loops when SQLITE_ENABLE_WHERETRACE is on. check-in: 0bbdaf28 user: drh tags: trunk
19:51
When reusing a materialized view, make sure the estimated number of output rows is correctly initialized to avoid confusing the query planner. check-in: 87aceb41 user: drh tags: trunk
Changes
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Changes to src/where.c.

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#ifdef WHERETRACE_ENABLED
    if( sqlite3WhereTrace ){    /* Display all of the WhereLoop objects */
      WhereLoop *p;
      int i;
      static const char zLabel[] = "0123456789abcdefghijklmnopqrstuvwyxz"
                                             "ABCDEFGHIJKLMNOPQRSTUVWYXZ";
      for(p=pWInfo->pLoops, i=0; p; p=p->pNextLoop, i++){
        p->cId = zLabel[i%sizeof(zLabel)];
        whereLoopPrint(p, sWLB.pWC);
      }
    }
#endif
  
    wherePathSolver(pWInfo, 0);
    if( db->mallocFailed ) goto whereBeginError;







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#ifdef WHERETRACE_ENABLED
    if( sqlite3WhereTrace ){    /* Display all of the WhereLoop objects */
      WhereLoop *p;
      int i;
      static const char zLabel[] = "0123456789abcdefghijklmnopqrstuvwyxz"
                                             "ABCDEFGHIJKLMNOPQRSTUVWYXZ";
      for(p=pWInfo->pLoops, i=0; p; p=p->pNextLoop, i++){
        p->cId = zLabel[i%(sizeof(zLabel)-1)];
        whereLoopPrint(p, sWLB.pWC);
      }
    }
#endif
  
    wherePathSolver(pWInfo, 0);
    if( db->mallocFailed ) goto whereBeginError;