>> Lazarus에서 ZeosDBO를 사용해서 Firebird에 접속할때 파일명이 한글로 되어있으면 파일을 읽지 못하더군요. UTF8ToSys()나 UTF8ToAnsi()를 사용해도 마찬가지였습니다. CreateFile(open)에서 바로 오류를 일으킵니다. 하지만 TIBConnection은 DatabaseName에 UTF8ToSys()를 적용하면 정상적으로 동작하더군요.
>> 
>> ZeosDBO가 TSQLConnection보다 속도가 빨라서 좋아했는데, 이젠 TIBConnection에서 autocommit 끄고 돌린 다음에 수동으로 commit하는게 나을 것 같습니다. 아무래도 델파이용으로 만들어진 컴포넌트다보니 Lazarus 지원은 썩 좋지 않은 것 같습니다.
>> 
>> Lazarus 1.2.4, ZeosDBO 7.1.3a, Firebird 2.5에서 확인했습니다.


ZDbInterbase6.pas에서

procedure TZInterbase6Connection.Open;
const sCS_NONE = 'NONE';
var
  DPB: PAnsiChar;
  FDPBLength: Word;
  DBName: array[0..512] of AnsiChar;
  TmpClientCodePageOld, TmpClientCodePageNew: PZCodePage;
  {$ifdef WINDOWS}
  AnsiDBName:Ansistring;
  {$endif}
begin
  if not Closed then
     Exit;

  if TransactIsolationLevel = tiReadUncommitted then
    raise EZSQLException.Create('Isolation level do not capable');

  DPB := GenerateDPB(Info, FDPBLength, FDialect);

  if HostName <> '' then
  begin
    if Port <> 3050 then
      {$IFDEF WITH_STRPCOPY_DEPRECATED}AnsiStrings.{$ENDIF}StrPCopy(DBName, ZPlainString(HostName + '/' + IntToStr(Port) + ':' + Database))
    else
      {$IFDEF WITH_STRPCOPY_DEPRECATED}AnsiStrings.{$ENDIF}StrPCopy(DBName, ZPlainString(HostName + ':' + Database))
  end
  else
    {$IFDEF WITH_STRPCOPY_DEPRECATED}AnsiStrings.{$ENDIF}StrPCopy(DBName, ZPlainString(Database));

  try
    { Create new db if needed }
    if Info.Values['createNewDatabase'] <> '' then
    begin
      {$ifdef WINDOWS}
      AnsiDBName:=Utf8ToAnsi(Info.Values['createNewDatabase']);
      CreateNewDatabase(AnsiDBName);
      {$else}
      CreateNewDatabase(Info.Values['createNewDatabase']);
      {$endif}
      { Logging connection action }
      DriverManager.LogMessage(lcConnect, PlainDriver.GetProtocol,
        Format('CREATE DATABASE "%s" AS USER "%s"', [Info.Values['createNewDatabase'], User]));
      URL.Properties.Values['createNewDatabase'] := '';
      //Allready Connected now if successfully created
    end
    else
    begin
      FHandle := 0;
      { Connect to Interbase6 database. }
      {$ifdef WINDOWS}
      AnsiDBName:=Utf8ToAnsi(DBName);
      GetPlainDriver.isc_attach_database(@FStatusVector,
        {$IFDEF WITH_STRLEN_DEPRECATED}AnsiStrings.{$ENDIF}Length(AnsiDBName), PAnsiChar(AnsiDBName),
          @FHandle, FDPBLength, DPB);
      {$else}
      GetPlainDriver.isc_attach_database(@FStatusVector,
        {$IFDEF WITH_STRLEN_DEPRECATED}An