330   int idxNum,                   /* Search strategy */  in vt02Filter()  argument
338   int iOrigIdxNum = idxNum;            /* Original value for idxNum */  in vt02Filter()
342   if( idxNum>=100 ){  in vt02Filter()
344     idxNum -= 100;  in vt02Filter()
346   if( idxNum<0 || idxNum>38 ) goto vt02_bad_idxnum;  in vt02Filter()
347   while( idxNum>=10 ){  in vt02Filter()
349     idxNum -= 10;  in vt02Filter()
351   if( idxNum==0 ){  in vt02Filter()
354   }else if( idxNum==1 ){  in vt02Filter()
360   }else if( idxNum>=2 && idxNum<=5 ){  in vt02Filter()
362     e = idxNum - 2;  in vt02Filter()
372   }else if( idxNum>=6 && idxNum<=8 ){  in vt02Filter()
375     e = idxNum - 6;  in vt02Filter()
690     zLogTab, iBI, pInfo->idxNum  in sqlite3BestIndexLog()
804     pInfo->idxNum = 1;  in vt02BestIndex()
807     pInfo->idxNum = 0;  in vt02BestIndex()
819     pInfo->idxNum = i;  in vt02BestIndex()
826       pInfo->idxNum += 4;  in vt02BestIndex()
838     if( pInfo->idxNum==1 ){  in vt02BestIndex()
858           pInfo->idxNum += 30;  in vt02BestIndex()
862           pInfo->idxNum += 20;  in vt02BestIndex()
866           pInfo->idxNum += 10;  in vt02BestIndex()
901     pInfo->idxNum += 1000;  in vt02BestIndex()
910       pInfo->idxNum += 100;  in vt02BestIndex()