314   u8 chngKey;            /* Either chngPk or chngRowid */  in sqlite3Update()  local
527   chngKey = chngRowid + chngPk;  in sqlite3Update()
565   hasFK = sqlite3FkRequired(pParse, pTab, aXRef, chngKey);  in sqlite3Update()
574     if( chngKey || hasFK>1 || pIdx==pPk  in sqlite3Update()
619     if( chngKey || pTrigger || hasFK ){  in sqlite3Update()
734       if( !pParse->nested && !pTrigger && !hasFK && !chngKey && !bReplace ){  in sqlite3Update()
879   assert( chngKey || pTrigger || hasFK || regOldRowid==regNewRowid );  in sqlite3Update()
1022         regNewRowid, regOldRowid, chngKey, onError, labelContinue, &bReplace,  in sqlite3Update()
1028     if( bReplace || chngKey ){  in sqlite3Update()
1039       sqlite3FkCheck(pParse, pTab, regOldRowid, 0, aXRef, chngKey);  in sqlite3Update()
1066         OPFLAG_ISUPDATE | ((hasFK>1 || chngKey) ? 0 : OPFLAG_ISNOOP),  in sqlite3Update()
1070       assert( hasFK==0 && chngKey==0 );  in sqlite3Update()
1077     if( hasFK>1 || chngKey ){  in sqlite3Update()
1083       sqlite3FkCheck(pParse, pTab, 0, regNewRowid, aXRef, chngKey);  in sqlite3Update()
1097       sqlite3FkActions(pParse, pTab, pChanges, regOldRowid, aXRef, chngKey);  in sqlite3Update()