2425   MergeEngine *pMain = 0;  in vdbeSorterMergeTreeBuild()  local
2435     pMain = vdbeMergeEngineNew(pSorter->nTask);  in vdbeSorterMergeTreeBuild()
2436     if( pMain==0 ) rc = SQLITE_NOMEM_BKPT;  in vdbeSorterMergeTreeBuild()
2469         if( pMain!=0 ){  in vdbeSorterMergeTreeBuild()
2470           rc = vdbeIncrMergerNew(pTask, pRoot, &pMain->aReadr[iTask].pIncr);  in vdbeSorterMergeTreeBuild()
2474           assert( pMain==0 );  in vdbeSorterMergeTreeBuild()
2475           pMain = pRoot;  in vdbeSorterMergeTreeBuild()
2484     vdbeMergeEngineFree(pMain);  in vdbeSorterMergeTreeBuild()
2485     pMain = 0;  in vdbeSorterMergeTreeBuild()
2487   *ppOut = pMain;  in vdbeSorterMergeTreeBuild()
2503   MergeEngine *pMain = 0;  in vdbeSorterSetupMerge()  local
2513   rc = vdbeSorterMergeTreeBuild(pSorter, &pMain);  in vdbeSorterSetupMerge()
2528         rc = vdbeIncrMergerNew(pLast, pMain, &pReadr->pIncr);  in vdbeSorterSetupMerge()
2533             if( (pIncr = pMain->aReadr[iTask].pIncr) ){  in vdbeSorterSetupMerge()
2548             PmaReader *p = &pMain->aReadr[iTask];  in vdbeSorterSetupMerge()
2556         pMain = 0;  in vdbeSorterSetupMerge()
2564       rc = vdbeMergeEngineInit(pTask0, pMain, INCRINIT_NORMAL);  in vdbeSorterSetupMerge()
2565       pSorter->pMerger = pMain;  in vdbeSorterSetupMerge()
2566       pMain = 0;  in vdbeSorterSetupMerge()
2571     vdbeMergeEngineFree(pMain);  in vdbeSorterSetupMerge()