98   Index *pIdx,      /* The index to check */  in indexColumnIsBeingUpdated()  argument
103   i16 iIdxCol = pIdx->aiColumn[iCol];  in indexColumnIsBeingUpdated()
109   assert( pIdx->aColExpr!=0 );  in indexColumnIsBeingUpdated()
110   assert( pIdx->aColExpr->a[iCol].pExpr!=0 );  in indexColumnIsBeingUpdated()
111   return sqlite3ExprReferencesUpdatedColumn(pIdx->aColExpr->a[iCol].pExpr,  in indexColumnIsBeingUpdated()
128   Index *pIdx,      /* The index to check */  in indexWhereClauseMightChange()  argument
132   if( pIdx->pPartIdxWhere==0 ) return 0;  in indexWhereClauseMightChange()
133   return sqlite3ExprReferencesUpdatedColumn(pIdx->pPartIdxWhere,  in indexWhereClauseMightChange()
299   Index *pIdx;           /* For looping over indices */  in sqlite3Update()  local
423   for(nIdx=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, nIdx++){  in sqlite3Update()
424     if( pPk==pIdx ){  in sqlite3Update()
572   for(nAllIdx=0, pIdx=pTab->pIndex; pIdx; pIdx=pIdx->pNext, nAllIdx++){  in sqlite3Update()
574     if( chngKey || hasFK>1 || pIdx==pPk  in sqlite3Update()
575      || indexWhereClauseMightChange(pIdx,aXRef,chngRowid)  in sqlite3Update()
578       pParse->nMem += pIdx->nColumn;  in sqlite3Update()
581       for(i=0; i<pIdx->nKeyCol; i++){  in sqlite3Update()
582         if( indexColumnIsBeingUpdated(pIdx, i, aXRef, chngRowid) ){  in sqlite3Update()
584           pParse->nMem += pIdx->nColumn;  in sqlite3Update()
585           if( onError==OE_Default && pIdx->onError==OE_Replace ){  in sqlite3Update()