changelog

PostgreSQL 8.1.4的源码 适用于Linux下的开源数据库系统

	- Deactivated backend functions PREPARE, EXECUTE and DEALLOCATE for
	  the time being.

Thu Nov  7 10:34:07 CET 2002

	- Synced preproc.y with gram.y.
	- Set ecpg version to 2.10.0.
	- Set library version to 3.4.0.

Fri Nov 15 16:46:08 CET 2002

	- Synced preproc.y with gram.y.


Wed Nov 27 09:28:54 CET 2002

	- Synced preproc.y with gram.y.

Tue Jan 21 20:50:58 CET 2003

	- Set ecpg version to 2.11.0.
	- Synced preproc.y with gram.y.

Thu Feb 13 14:06:28 CET 2003

	- Applied patch by Matthew Vanecek <[e-mail]> for better
	  error reporting.
	- Started working on an Informix compatibility mode. With option "-C
	  INFORMIX" set, ecpg now accepts "$" as alias for "exec sql" and to
	  denote variables inside SQL statements.


Fri Feb 14 14:14:25 CET 2003

	- Synced parser and keyword file.
	- More work on Informix compatibility. 

Mon Feb 17 15:07:41 CET 2003

	- Added Informix "database" command.

Wed Feb 19 13:39:29 CET 2003

	- Added DATABASE command as alias to CONNECT TO.
	- Fixed struct parsing bug.

Tue Feb 25 16:46:27 CET 2003

	- Allow SET CONNECTION to be followed by connection object without
	  leading "TO" or "=".
	- Allow whenever statement to list function without parameters.


Sun Mar 16 11:28:01 CET 2003
	
	- Started with a pgtypes library.
	- Renamed lib directory to ecpglib.
	- Added numerical functions to library and preprocessor.

Thu Mar 20 16:53:40 CET 2003

	- Added date/timestamp to library and preprocessor.

Fri Mar 21 15:13:42 CET 2003

	- Made sure preprocessor accepts new datatypes.
	- Do not free prepared statements at the end of a transaction.


Thu Mar 27 15:23:58 CET 2003

	- Some more updates to pgtypeslib.
	- Set optimization to -O1 until I find the reason why code is broken
	  with -O2.

Sat Mar 29 22:03:16 CET 2003

	- Moved Informix compatibility stuff its own library.
	- Added interval datetypes.

Sun Mar 30 13:43:13 CEST 2003

	- Interval datetype now fully functional.

Tue Apr  8 14:03:32 CEST 2003

	- Added rstrdate function.
	- Made Informix mode honor environment variable to set dbname to
	  connect to.

Thu May  1 14:54:41 CEST 2003

	- Enable more Informix shortcuts.
	- Added option '-i' to parse files included via cpp diretive as well.

Fri May  2 16:37:06 CEST 2003

	- Fixed double definition of compat_mode.

Tue May  6 11:51:33 CEST 2003

	- Added rfmtlong compatibility function.

Tue May 13 13:34:12 CEST 2003

	- Fixed order of include search path.
	
Wed May 14 13:05:49 CEST 2003

	- Added more compatibility functions.
	- Accept CPP defines for type definitions.
	- Do not parse system include files automatically for Informix mode

Fri May 16 11:45:50 CEST 2003

	- Fixed include in pgtypeslib to not include c.h

Fri May 16 13:32:10 CEST 2003

	- Made double variables work again.
	
Mon May 19 09:22:40 CEST 2003

	- Fixed exec sql ifdef command.

Tue May 20 11:47:00 CEST 2003

	- Reversed my fix for ifdef. It was the example, not ecpg which was
	  incorrect.
	- Changed DBPATH variable to PG_DBPATH.
	
Thu May 22 09:33:54 CEST 2003

	- ecpg now recognizes named struct/union usage.

Fri May 23 11:46:15 CEST 2003

	- Synced parser and keyword table.
	- ecpg now accepts array elements as input variables.

Tue May 27 13:29:28 CEST 2003

	- Fixed incorrect output for some structs.
	
Tue May 27 16:33:36 CEST 2003

	- Accept stdin/stdout as input/output file.
	
Thu May 29 13:58:25 CEST 2003

	- ecpg should now be able to parse forward struct definition.
	
Thu May 29 15:45:57 CEST 2003

	- Changed parsing of variables to be able to reference one attribute
	  of the n-th entry in an array of structs.
	  
Fri May 30 10:29:49 CEST 2003

	- Synced parser.
	- Added a dummy rule for EXEC SQL DESCRIBE that throws an error
	  message.
	  
Fri May 30 15:19:39 CEST 2003

	- Implemented prototype describe function.
	- Some minor cleanup/bug fixing.
	
Mon Jun  2 17:36:03 CEST 2003

	- Fixed segfault in forward definition parsing.
	
Tue Jun 10 19:43:49 CEST 2003

	- Fixed several small bugs.
	
Wed Jun 11 08:30:41 CEST 2003

	- Make sure a variable is no longer referenced when it is removed.
	- Fixed counting bug in parsing "->" operator.
	
Fri Jun 13 10:11:12 CEST 2003

	- Enable FETCH without INTO.
	- Compatibility functions for INFORMIX handling of DECLARE statement.

Sun Jun 15 11:18:58 CEST 2003

	- Applied multi-threading patch by Lee Kindess <[e-mail]>
	- Changed order of types in enum to make working with these easier.
	
Tue Jun 17 08:45:14 CEST 2003

	- Fixed several parsing bugs.
	
Thu Jun 19 10:08:26 CEST 2003

	- Added missing rdayofweek function for Informix compatibility.
	- Fixed fetch into char pointer.
	
Fri Jun 20 13:23:07 CEST 2003

	- Enabled constants in using clause.
	
Fri Jun 20 15:34:29 CEST 2003

	- For Informix compatibility we have to accept a "free <cursor>".
	- Synced scan.l and pgc.l.
	
Sun Jun 22 11:20:29 CEST 2003

	- Fixed missing '\0' in output char pointer.
	
Wed Jun 25 09:29:34 CEST 2003

	- Synced keyword.x and preproc.y/gram.y.
	- Implemented Informix special way to treat NULLs.
	
Thu Jun 26 13:26:13 CEST 2003

	- Added another compatibility level INFORMIX_SE.
	- Synced again.
	
Sun Jun 29 11:22:48 CEST 2003

	- Just another sync.
	- Made sure Informix style decimal vars are initialized. They use a
	  fixed amount of digits and not an allocated one. So we have to work
	  around. PostgreSQL numeric type remains the same.
	- In INFORMIX_SE mode with autcommit set, make all cursors be "with
	  hold". Is this really they way SE behaves?
	  
Tue Jul  1 11:57:56 CEST 2003

	- Use ISO dates in pgtypeslib by default.
	- Applied patch by Philip Yarra to fix some thread issues.
	- Added a new data type "decimal" which is mostly the same as our
	  "numeric" but uses a fixed length array to store the digits. This is
	  for compatibility with Informix and maybe others.
	  
Wed Jul  2 09:45:59 CEST 2003

	- Fixed initialization bug in compatlib.
	- Added postgres_fe.h to all files in pgtypeslib.
	
Fri Jul  4 13:51:11 CEST 2003

	- date, interval and timestamp data should be quoted. 
	
Mon Jul  7 14:13:43 CEST 2003

	- Made sure "char *" is handled differently than "char []".
	
Tue Jul  8 09:04:31 CEST 2003

	- Fixed segfault in ECPGconnect in Informix mode.
	
Tue Jul  8 12:34:00 CEST 2003

	- Made Informix decimal-ascii conversion honor Informix NULLs.
	- Informix variable handling didn't cope well with arrays.
	
Wed Jul  9 11:45:02 CEST 2003

	- Made all Informix functions honor Informix NULLs.
	- Extended compatibility functions for INFORMIX handling of DECLARE
	  statement to work with indicators.
	  
Mon Jul 14 09:34:04 CEST 2003

	- Synced preproc.y with gram.y
	- Init sqlca in ECPGprepare().
	- Added CLOSE DATABASE for Informix compatibility.
	
Tue Jul 15 14:28:53 CEST 2003

	- Started to add error codes for backend error messages.
	
Thu Jul 17 09:15:59 CEST 2003

	- Fixed some bugs in informix compat functions.
	
Fri Jul 18 16:31:10 CEST 2003

	- Added some more compatibility features to the parser.
	
Thu Jul 24 10:33:51 CEST 2003

	- Fixed mdy functions to use correct offset.
	
Fri Jul 25 18:08:18 CEST 2003

	- Added explicit casts for date/timestamp/interval.
	
Fri Aug  1 08:54:02 CEST 2003
	
	- Added some Informix error codes in Informix mode.
	- Added just another pgtypeslib function.

Mon Aug 25 13:24:27 CEST 2003

	- Synced parser.
	
Tue Aug 26 18:06:45 CEST 2003

	- Fixed processing of connect statement with username as variable.
	
Mon Sep  1 14:33:10 CEST 2003

	- Fixed two bugs in numeric library.

Tue Sep  9 12:13:51 CEST 2003

	- Added Dave patch for Informix handling of numeric/int conversion.
	- Changed all new datatypes to lowercase.
	- Fixed rounding bug in numerical types.
	
Wed Sep 10 20:01:49 CEST 2003

	- Some files still had uppercase typenames
	
Mon Sep 15 18:09:42 CEST 2003

	- Accept output variables for FETCH in DECLARE statement.
	
Tue Sep 16 07:56:14 CEST 2003

	- Synced parser.
	- Allowed C variables to carry the name of prepared statements.
	
Thu Sep 18 14:54:47 CEST 2003

	- Added Informix handling of datatype converion errors.
	
Fri Sep 19 08:33:39 CEST 2003

	- Some code cleanup
	
Sat Sep 20 11:06:13 CEST 2003

	- Applied some bug fixing patches by Dave Cramer <[e-mail]>.
	- Added protecting defines to include files.
	- Renamed my own strndup() function because of a name clash.
	
Mon Sep 22 15:13:02 CEST 2003

	- Fixed order mismatch in processing "using" arguments.
	- Fixed some minor things in test cases.
	- Use defines for Informix error codes.

Tue Sep 23 14:50:45 CEST 2003

	- Changed struct definition handling so "struct foo {}" always gets
	  defined.
	  
Fri Sep 26 17:14:07 CEST 2003

	- Incorrect datatype with precision argument should not create a
	  segfault.
	  
Fri Oct  3 12:04:57 CEST 2003

	- Hide Informix datatypes in PostgreSQL built process.
	
Sun Oct  5 13:08:47 CEST 2003

	- Fixed bug in day of week calculation.
	
Mon Oct  6 08:41:45 CEST 2003

	- Fixed constant listing in execute using clause.
	- Fixed typo in ecpg for Informix dec_t type.
	- Fixed precision handling in Informix compat funxtions.
	
Tue Oct  7 07:45:09 CEST 2003

	- Fixed error handling in rstrdate.
	
Tue Oct  7 20:26:06 CEST 2003

	- Fixed floating point exception in long=>numeric transformation.
	
Sun Oct 19 15:20:16 CEST 2003

	- Need to check for both Informic compat modes when parsing include
	  files.
	  
Mon Oct 20 14:53:40 CEST 2003

	- Install dummy sqlda.h file.
	
Sun Oct 26 10:47:05 CET 2003

	- Fixed bug with indicators when storage for the
	  string is dynamically allocated
	  
Thu Oct 30 11:12:37 CET 2003

	- Applied patch by Dave Cramer fixing several bugs in compatlib.
	
Fri Oct 31 15:09:22 CET 2003

	- If EOF is found inside a string/comment/etc. stop parsing.
	
Mon Nov  3 15:43:19 CET 2003

	- Fixed a potentially uncleared allocation in compatlib.
	- Set ecpg version to 3.0.0
	- Set ecpg library to 4.0.0
	- Set pgtypes library to 1.0.0
	- Set compat library to 1.0.0

Wed Dec  3 09:45:21 CET 2003

	- Added patch for array handling by Dave Cramer
	
Wed Dec 17 16:11:16 CET 2003

	- Added just another patch by Dave that fixes a reversed order in
	  variable listing for output variables in cursor definitions
	- Fixed incorrect if call in long=>numeric conversion.
	- Set ecpg version to 3.1.0
	- Set ecpg library to 4.1
	- Set pgtypes library to 1.1
	- Set compat library to 1.1

Mon Jan 26 21:57:14 CET 2004

	- Issue a warning if a cursor is declared but not opened.
	- Fixed prototype for ECPGprepared_statement to not moan about "const
	  char"
	- Fixed parsing of nested structures.
	- Added option to parse header files.

Sun Feb 15 14:44:14 CET 2004

	- Added missing braces to array parsing.
	- Allowed some C keywords to be used as SQL column names.
	
Mon Feb 16 08:17:19 CET 2004

	- Cleaned up parser a little bit. It does not make sense to allow a
	  typename to be typedef'ed that cannot be parsed as variable type.
	- Allowed some SQL keywords to be used as C variable names.

Tue Feb 24 16:48:57 CET 2004

	- Corrected error handling in PGTYPEStimestamp_from_asc.
	
Mon Mar  1 08:56:37 CET 2004
	
	- Added partly missing VOLATILE keyword.
	
Thu Mar  4 08:29:02 CET 2004

	- Fixed segfault due to missing check for variable declaration.
	- Added check for multidimensional array usage.
	
Sun Mar 14 12:59:15 CET 2004

	- Fixed Informix compat math functions to cope with the situations
	  where one argument takes the result.
	- Applied thread patches by Lee Kindness
	
Mon Mar 29 17:02:52 CEST 2004

	- Fixed possible segfault in type.c (by Juergen Cappel)
	
Thu Apr 22 14:13:57 CEST 2004

	- Fixed double usage of allocated memory.
	
Thu Apr 29 16:06:37 CEST 2004

	- Synced parser and keyword list.
	
Wed May  5 11:51:47 CEST 2004

	- Fixed bug in adjust_informix that treated arrays as simple
	  variables.
	- Synced parser again.
	- Synced lexer.
	
Fri May  7 15:34:05 CEST 2004

	- Added portability file to pgtypeslib.
	- Fixed bug that reversed string length in typedefs.
	- Added additional test case.
	
Mon May 10 15:38:58 CEST 2004

	- Argh, just another bug in adjust_informix.
	- Added "extern C" flags for C++ compiler.

Fri May 21 15:17:35 CEST 2004
	
	- Fixed DEALLOCATE PREPARE to use correct function call
	- Made sure connect statement does not accept single char variable,
	  but only strings.
	  
Sat May 22 13:11:12 CEST 2004

	- Added pg_config_paths.h to ecpglib.
	
Thu Jun 17 13:50:06 CEST 2004

	- Added patch by ISHIDA Akio to allow indicators in execute
	  statements.
	  
Sun Jun 20 12:44:01 CEST 2004

	- Synced parser and keyword list.
	
Sun Jun 27 13:50:58 CEST 2004
	
	- Only use typedefs inside their scope.
	- Variables that are out of scope, were not removed all the time.
	- Make a varchar NULL set everything to 0 when not using indicators.
	- Synced parser.
	
Mon Jun 28 11:08:42 CEST 2004

	- Arrays can be read as arrays or as character strings now.
	
Wed Jun 30 16:56:32 CEST 2004

	- Added SET DESCRIPTOR command. 
	- Cleaned up error handling in preprocessor.
	
Sun Jul  4 16:53:53 CEST 2004

	- Made sure SET DESCRIPTOR accepts all data types including constants.
	- Some code cleanup.
	
Mon,  5 Jul 2004 10:41:54 +0200

	- Fixed indicator in SET DESCRIPTOR.
	- Added special handling of descriptor header information.
	- More code cleanup.
	
Mon Jul  5 20:50:09 CEST 2004

	- Added free() calls against memory leak in interval.c.
	
Tue Jul 20 09:15:21 CEST 2004

	- Synced parser and keyword list.
	- Fixed handling of cyclic defines.
	
Mon Jul 26 09:04:53 CEST 2004

	- SQL defines are only used in SQL space in Informix mode.
	
Mon Sep  6 13:17:46 CEST 2004

	- Fixed bug in Informix mode that caused a segfault.
	- Set pgtypes library version to 1.2.
	
Mon Sep 27 11:05:49 CEST 2004

	- Synced parser.
	- Removed Oracle transaction syntax to fix shift/reduce error.
	
Tue Oct  5 12:45:48 CEST 2004

	- '::' is no longer interpreted as a variable in a prepare statement.
	  Added patch by Daniel Verite to fix this.
	  
Mon Oct 18 15:34:51 CEST 2004

	- Synced parser.
	
Wed Nov 10 14:43:50 CET 2004

	- List VALUE as a keyword.
	
Mon Dec  6 21:27:34 CET 2004
	
	- Fixed bug in parsing of typedef'ed array sizes.
	- Synced parser.
	
Thu Dec 23 09:26:08 CET 2004

	- Added PGTYPEStimestamp_add_interval written by Dave Cramer.
	- Fixed parsing of defines to make sure they used more than once.	
	
Mon Jan 10 13:55:32 CET 2005
	
	- Fixed segfault in adjust_informix due to missing varchar type.
	- Set ecpg version to 3.2.0.
	- Set compat library version to 1.2.
	- Set ecpg library version to 4.2.

Tue Jan 25 13:47:45 CET 2005

	- Fixed segfault in preprocessor due to free a struct twice.

Wed Feb  2 16:35:27 CET 2005

	- Fixed bug in parsing of #line statement in declare section.
	
Wed Feb  9 12:24:03 CET 2005

	- Fixed bug in parsing of CREATE AS statement.

Thu Feb 10 09:03:56 CET 2005

	- Fixed more parsing bugs in other CREATE statements. Thanks to TANIDA
	  Yutaka <[e-mail]> and Atsushi Mitani <[e-mail]> for
	  pointing out all these problems.
	- Set ecpg version to 3.2.1.

Fri Mar 18 10:54:47 CET 2005
	  
	- Added patch by Christof Petig <[e-mail]> to work
	  around gcc bug on powerpc and amd64.

Thu Apr 14 11:59:47 CEST 2005

	- Added patch by Philip Yarra <[e-mail]> for a
	  bug in thread support.

Thu Jun  2 14:22:32 CEST 2005

	- Fixed memory leak in ecpglib by adding some missing free() commands.
	- Added patch by Gavin Scott <[e-mail]> for Intel 64bit
	  hardware.

Wed Aug 24 12:17:48 CEST 2005

	- Check for NULL before checking whether argument is an array.
	- Remove stray character from string quoting.
	- Fixed check to report missing varchar pointer implementation.

Mon Sep 12 13:53:35 CEST 2005

	- Fixed transaction command handling to not ignore savepoints
	  and to correctly check for errors.

Tue Oct  4 15:23:00 CEST 2005

	- Synced parser.
	- Fixed another bug in check to report missing varchar pointer implementation.

Wed Oct  5 16:57:42 CEST 2005

	- Synced lexer.
	- Set ecpg library version to 5.1.
	- Set ecpg version to 4.1.1.