changelog

一个可以替代windows ODBC驱动程序管理器的通用ODBC数据库引擎

Jun 7 2001, V3.0.5:
    * Added new iodbcinst code
    * Added new drvproxy and iodbcadm GTK frontend
    * iODBC released under LGPL or BSD license
    * SQLMoreResults always returned SQL_NO_DATA_FOUND

Jun 4 2001, V3.0.4:
    * Reorganized source tree to use multiple subdirectories in 
      preparation of adding the new iodbcinst code
    * Use config.h instead of massive CFLAGS
    * Generate libiodbc.spec with correct version number

Jun 1 2001, V3.0.3:
    * Added support for automake 1.4-p2, autoconf 2.50 and libtool 1.4
    * Fixed problems with shl_unload on HP/UX
    * Added support for MacOS X 1.2 (Darwin)
    * Disallow root to start a debug session (security risk)
    * SQLDatasources returns Driver Type instead of DSN Description
    * Added checks for ODBC 3.x date, time and timestamp defines
    * Fixed initialization of cip flag 

Feb 1 2000, V3.0.2:
    * Fixed deadlock problem in SQLNumResultCols
    * Small code fix in SQLDatasources

Jan 28 2000, V3.0.1:
    * Added thread support into Driver Manager
    * Added code to allow Threaded application to call non-threaded driver
    * Small code fixes and cleanups

Dec 16 1999, V3.0.0:
    * Added initial support for ODBC 3.x API and the ODBC 3.x to 2.x
      translation layer
    * Added --disable-odbc3 flag to configure.in for building ODBC 2.x 
      compatible driver manager
    * Added --enable-maintainer-mode flag to configure.in
    * Rewrote dlopen and underscore checks in configure.in
    * Default iodbc-inidir is set to /etc
    * Clear error stack at the start of each ODBC function
    * Imported libtool 1.3.4
    * Small code cleanups
    * Created iodbc-config script for other projects to find out how
      to link with the iodbc libraries.
    * Fixed bug in SQLDataSources 
    * Added initial support for MacOS X (Rhapsody)
    * Add some ODBC 3.x API calls to the odbctest program
    
June 25, 1999, V2.50.3:
    * Renamed public header files to conform to ODBC standard 
    * System wide iodbc.ini can now be set with --with-odbc-inidir=,
      default is set to $sysconfdir/odbc.ini to comply with GNU 
      standards
    * Some small bug fixes
    * Added AutoReqProv flag to RPM .spec file
    * Changed types for SQLHENV, SQLHDBC, SQLHSTMT

April 26, 1999, V2.50.2:
    * Small code cleanups (pvk)
    * Wrote new handle validation checks to make the driver manager more
      resistant to handle misuse (pvk)
    * Rewrote all function prototypes to conform to ODBC 2.51 standard (pvk)
    * Use the internal form of the handle instead of the external
      representation (pvk)
    * Removed 2 copyright sccs stamps and comments as requested by Ke Jin (pvk)
    * Added rudementary SQLGetPrivateProfileString call (pvk)
    * Added support for VMS (ps)

January 18, 1999, V2.50:
    * Added autoconf/automake/libtool support
    * Licensing moved to LGPL 
    * Added OpenLink code enhancements and bug fixes

------------------------------------------------------------------------
Original Changelog from Ke Jin
------------------------------------------------------------------------
July 30, 1995, v2.00.beta: 
	0. the first release and beta version. 

Sep. 11, 1995, v2.10:
	1. Porting to AIX 3.x and 4.x, by writing dlopen(),
	   dlsym(), dlclose() interface. 
	2. Tested on SCO OpenServer 5.x 
	3. Awared of that, unlike s700/s800, exported function 
	   symbols on HP9000 s300/s400 will be prepended with 
	   a '_' prefix by compiler(and this '_' prefix is not
	   automatically handled by shl_findsym()). Now, it works
	   fine on s300/s400.
	4. Support driver ODBC call tracing.

Oct. 12, 1995, v2.11:
	5. Driver's SQLNumResultCols() will automatically be 
	   invoked in driver manager's SQLExecute(),
	   SQLExecDirect() and SQLParamData() after successfully 
	   (i.e. return SQL_SUCCESS or SQL_SUCCESS_WITH_INFO )
	   calling of their correspondent driver functions. This 
	   simplifies the state tracing/checking of the driver 
	   manager a lot and allows store procedures to return 
	   result set and also make iODBC driver manager work 
	   properly with SELECT INTO statements which actually 
	   don't return result sets.
	6. Memory leaks are cleared.
	7. Two bugs in dld.c for AIX are fixed 
	8. A bug of setting tracing option is fixed.
	9. The driver will not be unloaded by SQLDisconnect() 
	   but by SQLFreeConnect() or next SQLConnect()/
	   SQLDriverConnect()/SQLBrowsConnect() on a different 
	   driver. This will save driver's loading time if it
	   has been used by a previous connection(even there
	   is no active connection on this driver).
	10.Another three platforms are supported:
		FreeBSD			2.x 
		Concurrent Max/OS SVR4	1.x
		DG/UX			5.x
	11.autoconfig and build -- shell scripts to help modifying 
	   Config.mk and building iodbc driver manager

Nov. 12, 1995, v2.12
	12.I realized that a driver manager doesn't aware of 
	   difference between a C5 (i.e. hstmt) and a C6 
	   (i.e. transaction) states. 
	13.The link flags "-lc" has been droped from Linux ELF
	   section of Config.mk to fix a segment fault problem.
	   Now, it works fine on Slackware 2.3 and Red Hat 2.0
	   (kernel version are 1.2.xx and 1.3.xx respectively).
	14.On FreeBSD 2.x, dlsym() doesn't handle the '_' prefix 
	   prepended to an exportting function symbol by compiler. 
	   So, CLI_NAME_PREFIX needs to be defined as "_SQL" for 
	   FreeBSD 2.x. 
	15.Some files are renamed
		dld.c	-> dlf.c
		dld.h	-> dlf.h
		confg.h -> config.h
	16. Fix a bug on setting tracing options.