321   int hasFK;             /* True if foreign key processing is required */  in sqlite3Update()  local
565   hasFK = sqlite3FkRequired(pParse, pTab, aXRef, chngKey);  in sqlite3Update()
574     if( chngKey || hasFK>1 || pIdx==pPk  in sqlite3Update()
603   sqlite3BeginWriteOperation(pParse, pTrigger || hasFK, iDb);  in sqlite3Update()
615     if( chngPk || pTrigger || hasFK ){  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()
892   if( chngPk || hasFK || pTrigger ){  in sqlite3Update()
893     u32 oldmask = (hasFK ? sqlite3FkOldmask(pParse, pTab) : 0);  in sqlite3Update()
1038     if( hasFK ){  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()
1082     if( hasFK ){  in sqlite3Update()
1096     if( hasFK ){  in sqlite3Update()