193   char *zKey = pFKey->aCol[0].zCol;   /* Name of left-most parent key column */  in sqlite3FkLocateIndex()
218       if( !sqlite3StrICmp(pParent->aCol[pParent->iPKey].zCnName, zKey) ){  in sqlite3FkLocateIndex()
242             for(i=0; i<nCol; i++) aiCol[i] = pFKey->aCol[i].iFrom;  in sqlite3FkLocateIndex()
262           zDfltColl = sqlite3ColumnColl(&pParent->aCol[iCol]);  in sqlite3FkLocateIndex()
266           zIdxCol = pParent->aCol[iCol].zCnName;  in sqlite3FkLocateIndex()
268             if( sqlite3StrICmp(pFKey->aCol[j].zCol, zIdxCol)==0 ){  in sqlite3FkLocateIndex()
269               if( aiCol ) aiCol[i] = pFKey->aCol[j].iFrom;  in sqlite3FkLocateIndex()
485       pCol = &pTab->aCol[iCol];  in exprTableRegister()
592     iCol = aiCol ? aiCol[i] : pFKey->aCol[0].iFrom;  in fkScanChildren()
594     zCol = pFKey->pFrom->aCol[iCol].zCnName;  in fkScanChildren()
629         pRight = sqlite3Expr(db, TK_ID, pTab->aCol[iCol].zCnName);  in fkScanChildren()
806     int iChildKey = p->aCol[i].iFrom;  in fkChildIsModified()
833     char *zKey = p->aCol[i].zCol;  in fkParentIsModified()
837         Column *pCol = &pTab->aCol[iKey];  in fkParentIsModified()
953           iFromCol = pFKey->aCol[i].iFrom;  in sqlite3FkCheck()
966       iCol = pFKey->aCol[0].iFrom;  in sqlite3FkCheck()
980         char *zCol = pTo->aCol[pIdx ? pIdx->aiColumn[i] : pTo->iPKey].zCnName;  in sqlite3FkCheck()
1099       for(i=0; i<p->nCol; i++) mask |= COLUMN_MASK(p->aCol[i].iFrom);  in sqlite3FkOldmask()
1248       iFromCol = aiCol ? aiCol[i] : pFKey->aCol[0].iFrom;  in fkActionTrigger()
1253                    pTab->aCol[pIdx ? pIdx->aiColumn[i] : pTab->iPKey].zCnName);  in fkActionTrigger()
1254       sqlite3TokenInit(&tFromCol, pFKey->pFrom->aCol[iFromCol].zCnName);  in fkActionTrigger()
1292           Column *pCol = pFKey->pFrom->aCol + iFromCol;  in fkActionTrigger()