192   int nCol = pFKey->nCol;             /* Number of columns in parent key */  in sqlite3FkLocateIndex()  local
208   if( nCol==1 ){  in sqlite3FkLocateIndex()
223     assert( nCol>1 );  in sqlite3FkLocateIndex()
224     aiCol = (int *)sqlite3DbMallocRawNN(pParse->db, nCol*sizeof(int));  in sqlite3FkLocateIndex()
230     if( pIdx->nKeyCol==nCol && IsUniqueIndex(pIdx) && pIdx->pPartIdxWhere==0 ){   in sqlite3FkLocateIndex()
242             for(i=0; i<nCol; i++) aiCol[i] = pFKey->aCol[i].iFrom;  in sqlite3FkLocateIndex()
252         for(i=0; i<nCol; i++){  in sqlite3FkLocateIndex()
267           for(j=0; j<nCol; j++){  in sqlite3FkLocateIndex()
273           if( j==nCol ) break;  in sqlite3FkLocateIndex()
275         if( i==nCol ) break;      /* pIdx is usable */  in sqlite3FkLocateIndex()
353   for(i=0; i<pFKey->nCol; i++){  in fkLookupParent()
391       int nCol = pFKey->nCol;  in fkLookupParent()  local
392       int regTemp = sqlite3GetTempRange(pParse, nCol);  in fkLookupParent()
396       for(i=0; i<nCol; i++){  in fkLookupParent()
413         int iJump = sqlite3VdbeCurrentAddr(v) + nCol + 1;  in fkLookupParent()
414         for(i=0; i<nCol; i++){  in fkLookupParent()
432       sqlite3VdbeAddOp4(v, OP_Affinity, regTemp, nCol, 0,  in fkLookupParent()
433                         sqlite3IndexAffinityStr(pParse->db,pIdx), nCol);  in fkLookupParent()
434       sqlite3VdbeAddOp4Int(v, OP_Found, iCur, iOk, regTemp, nCol);  in fkLookupParent()
436       sqlite3ReleaseTempRange(pParse, regTemp, nCol);  in fkLookupParent()
566   assert( pIdx==0 || pIdx->nKeyCol==pFKey->nCol );  in fkScanChildren()
567   assert( pIdx!=0 || pFKey->nCol==1 );  in fkScanChildren()
583   for(i=0; i<pFKey->nCol; i++){  in fkScanChildren()
805   for(i=0; i<p->nCol; i++){  in fkChildIsModified()
832   for(i=0; i<p->nCol; i++){  in fkParentIsModified()
835     for(iKey=0; iKey<pTab->nCol; iKey++){  in fkParentIsModified()
950         int iJump = sqlite3VdbeCurrentAddr(v) + pFKey->nCol + 1;  in sqlite3FkCheck()
951         for(i=0; i<pFKey->nCol; i++){  in sqlite3FkCheck()
961     assert( pFKey->nCol==1 || (aiFree && pIdx) );  in sqlite3FkCheck()
969     for(i=0; i<pFKey->nCol; i++){  in sqlite3FkCheck()
1038     assert( aiCol || pFKey->nCol==1 );  in sqlite3FkCheck()
1099       for(i=0; i<p->nCol; i++) mask |= COLUMN_MASK(p->aCol[i].iFrom);  in sqlite3FkOldmask()
1238     assert( aiCol || pFKey->nCol==1 );  in fkActionTrigger()
1240     for(i=0; i<pFKey->nCol; i++){  in fkActionTrigger()
1250       assert( pIdx!=0 || (pTab->iPKey>=0 && pTab->iPKey<pTab->nCol) );  in fkActionTrigger()