117   const char *zDb  in sqlite3MatchEName()  argument
124   if( zDb && (sqlite3StrNICmp(zSpan, zDb, n)!=0 || zDb[n]!=0) ){  in sqlite3MatchEName()
234   const char *zDb,     /* Name of the database containing table, or NULL */  in lookupName()  argument
256   assert( zDb==0 || zTab!=0 );  in lookupName()
267   if( zDb ){  in lookupName()
275       zDb = 0;  in lookupName()
279         if( sqlite3StrICmp(db->aDb[i].zDbSName,zDb)==0 ){  in lookupName()
284       if( i==db->nDb && sqlite3StrICmp("main", zDb)==0 ){  in lookupName()
288         zDb = db->aDb[0].zDbSName;  in lookupName()
319             if( !sqlite3MatchEName(&pEList->a[j], zCol, zTab, zDb) ){  in lookupName()
356         assert( zDb==0 || zTab!=0 );  in lookupName()
359           if( zDb ){  in lookupName()
361             if( pSchema==0 && strcmp(zDb,"*")!=0 ) continue;  in lookupName()
434     if( cnt==0 && zDb==0 ){  in lookupName()
600           assert( zTab==0 && zDb==0 );  in lookupName()
694     if( zDb ){  in lookupName()
695       sqlite3ErrorMsg(pParse, "%s: %s.%s.%s", zErr, zDb, zTab, zCol);  in lookupName()
950       const char *zDb;  in resolveExprStep()  local
954         zDb = 0;  in resolveExprStep()
966           zDb = 0;  in resolveExprStep()
970           zDb = pLeft->u.zToken;  in resolveExprStep()
983       return lookupName(pParse, zDb, zTable, zColumn, pNC, pExpr);  in resolveExprStep()