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23 years agoRip out table expression section from SQL syntax chapter and develop it
Peter Eisentraut [Mon, 22 Jan 2001 23:34:33 +0000 (23:34 +0000)]
Rip out table expression section from SQL syntax chapter and develop it
into new chapter on query (SELECT) syntax.  In the end this should become
a narrative and example-filled counterpart to the SELECT reference page.

23 years agoRemove rangechecks on errno; just call strerror unconditionally. This
Tom Lane [Mon, 22 Jan 2001 23:28:52 +0000 (23:28 +0000)]
Remove rangechecks on errno; just call strerror unconditionally.  This
eliminates a raft of portability issues, including whether sys_nerr
exists, whether the platform has any valid negative errnos, etc.  The
downside is minimal: errno shouldn't ever contain an invalid value anyway,
and if it does, reasonably modern versions of strerror will not choke.
This rangecheck idea seemed good at the time, but it's clearly a net loss,
and I apologize to all concerned for having ever put it in.

23 years agoPut back old MS FAQ>
Bruce Momjian [Mon, 22 Jan 2001 22:54:07 +0000 (22:54 +0000)]
Put back old MS FAQ>

23 years agoClean up lockmanager data structures some more, in preparation for planned
Tom Lane [Mon, 22 Jan 2001 22:30:06 +0000 (22:30 +0000)]
Clean up lockmanager data structures some more, in preparation for planned
rewrite of deadlock checking.  Lock holder objects are now reachable from
the associated LOCK as well as from the owning PROC.  This makes it
practical to find all the processes holding a lock, as well as all those
waiting on the lock.  Also, clean up some of the grottier aspects of the
SHMQueue API, and cause the waitProcs list to be stored in the intuitive
direction instead of the nonintuitive one.  (Bet you didn't know that
the code followed the 'prev' link to get to the next waiting process,
instead of the 'next' link.  It doesn't do that anymore.)

23 years agoUpdate FAQ.
Bruce Momjian [Mon, 22 Jan 2001 17:20:12 +0000 (17:20 +0000)]
Update FAQ.

23 years agoSynced preproc.y with gram.y and added missing include file to pgc.l.
Michael Meskes [Mon, 22 Jan 2001 17:05:50 +0000 (17:05 +0000)]
Synced preproc.y with gram.y and added missing include file to pgc.l.

23 years agoUpdate FAQ.
Bruce Momjian [Mon, 22 Jan 2001 16:35:35 +0000 (16:35 +0000)]
Update FAQ.

23 years agoMinor fixes.
Tom Lane [Mon, 22 Jan 2001 16:11:17 +0000 (16:11 +0000)]
Minor fixes.

23 years agoUpdate FAQ.
Bruce Momjian [Mon, 22 Jan 2001 06:27:41 +0000 (06:27 +0000)]
Update FAQ.

23 years agoUpdate FAQ.
Bruce Momjian [Mon, 22 Jan 2001 05:56:26 +0000 (05:56 +0000)]
Update FAQ.

23 years agoAdd.
Bruce Momjian [Mon, 22 Jan 2001 03:47:22 +0000 (03:47 +0000)]
Add.

23 years agoUpdate.
Bruce Momjian [Mon, 22 Jan 2001 03:36:58 +0000 (03:36 +0000)]
Update.

23 years agoMake Kevin Lo's MS FAQ the default.
Bruce Momjian [Mon, 22 Jan 2001 03:33:55 +0000 (03:33 +0000)]
Make Kevin Lo's MS FAQ the default.

23 years agoClean up per-tuple memory leaks in trigger firing and plpgsql
Tom Lane [Mon, 22 Jan 2001 00:50:07 +0000 (00:50 +0000)]
Clean up per-tuple memory leaks in trigger firing and plpgsql
expression evaluation.

23 years agoAll the global memory contexts should be DLLIMPORT, if any are.
Tom Lane [Mon, 22 Jan 2001 00:18:13 +0000 (00:18 +0000)]
All the global memory contexts should be DLLIMPORT, if any are.

23 years agoUpdate FAQ.
Bruce Momjian [Sun, 21 Jan 2001 22:16:56 +0000 (22:16 +0000)]
Update FAQ.

23 years agoDescription of table expressions, including join syntax, from Robert B.
Peter Eisentraut [Sun, 21 Jan 2001 22:02:01 +0000 (22:02 +0000)]
Description of table expressions, including join syntax, from Robert B.
Easter <reaster@comptechnews.com>, heavily massaged by me.  Also cleaned up
value expressions a bit.

23 years agoPut quotes around environment variables.
Bruce Momjian [Sun, 21 Jan 2001 05:16:45 +0000 (05:16 +0000)]
Put quotes around environment variables.

23 years agoUpdate FAQ.
Bruce Momjian [Sun, 21 Jan 2001 05:01:57 +0000 (05:01 +0000)]
Update FAQ.

23 years agoBack out patch for BLOB operations until approval.
Bruce Momjian [Sun, 21 Jan 2001 03:50:25 +0000 (03:50 +0000)]
Back out patch for BLOB operations until approval.

23 years agoHello,
Bruce Momjian [Sun, 21 Jan 2001 03:49:14 +0000 (03:49 +0000)]
Hello,

here is the patch attached which do check in each BLOB operation, if we are
in transaction, and raise an error otherwise. This will prevent such mistakes.

--
Sincerely Yours,
Denis Perchine

23 years agoDeal with C++ incompatibility of sys_nerr declaration by taking it out
Tom Lane [Sun, 21 Jan 2001 00:59:26 +0000 (00:59 +0000)]
Deal with C++ incompatibility of sys_nerr declaration by taking it out
of c.h altogether, and putting it into the only places that use it
(elog.c and exc.c), instead.  Modify these routines to check for a
NULL or empty-string return from strerror, too, since some platforms
define strerror to return empty string for unknown errors (what a useless
definition that is ...).  Clean up some cruft in ExcPrint while at it.

23 years agoGet rid of sunos4-only strerror() macro, and arrange to use the
Tom Lane [Sat, 20 Jan 2001 23:07:27 +0000 (23:07 +0000)]
Get rid of sunos4-only strerror() macro, and arrange to use the
implementation in backend/port/strerror.c if configure finds no strerror
in libc, same as we do for snprintf and inet_aton.

23 years agoRemove no-longer-used STRERROR2 config symbol.
Tom Lane [Sat, 20 Jan 2001 22:56:33 +0000 (22:56 +0000)]
Remove no-longer-used STRERROR2 config symbol.

23 years agoGet rid of initdb -t bugs by the simple expedient of getting rid of
Tom Lane [Sat, 20 Jan 2001 22:09:24 +0000 (22:09 +0000)]
Get rid of initdb -t bugs by the simple expedient of getting rid of
initdb -t.  This option is obsoleted by 7.1's ability to drop and
recreate template1 during normal operation.

23 years agoReplace some oldish, non-SQL'ish elements with more standard forms. (cast
Peter Eisentraut [Sat, 20 Jan 2001 20:59:29 +0000 (20:59 +0000)]
Replace some oldish, non-SQL'ish elements with more standard forms. (cast
syntax, type names, function names, etc.)

23 years agoAdd.
Bruce Momjian [Sat, 20 Jan 2001 18:55:35 +0000 (18:55 +0000)]
Add.

23 years agoGive a good error message for what's likely to be a common syntax error,
Tom Lane [Sat, 20 Jan 2001 17:37:52 +0000 (17:37 +0000)]
Give a good error message for what's likely to be a common syntax error,
namely omitting the alias clause for a sub-SELECT in FROM.

23 years agoAdd emails about transaction rollover.
Bruce Momjian [Sat, 20 Jan 2001 05:00:03 +0000 (05:00 +0000)]
Add emails about transaction rollover.

23 years agoUpdate TODO list.
Bruce Momjian [Sat, 20 Jan 2001 04:59:36 +0000 (04:59 +0000)]
Update TODO list.

23 years agoUpdate TODO list.
Bruce Momjian [Sat, 20 Jan 2001 04:57:11 +0000 (04:57 +0000)]
Update TODO list.

23 years agoAdd.
Bruce Momjian [Sat, 20 Jan 2001 04:46:46 +0000 (04:46 +0000)]
Add.

23 years agoUpdate TODO list.
Bruce Momjian [Sat, 20 Jan 2001 04:46:04 +0000 (04:46 +0000)]
Update TODO list.

23 years agoMove anoncvs to top of docs, then put cvs tree. Hope that is OK. Seems
Bruce Momjian [Sat, 20 Jan 2001 04:16:55 +0000 (04:16 +0000)]
Move anoncvs to top of docs, then put cvs tree.  Hope that is OK.  Seems
more logical.

23 years agoAdd missing piece of BitString support to node output functions. Expand
Peter Eisentraut [Sat, 20 Jan 2001 00:15:59 +0000 (00:15 +0000)]
Add missing piece of BitString support to node output functions.  Expand
and remove IsA_Value macro.

23 years agoIn the Programmer's Guide, the sample code for accessing large objects
Bruce Momjian [Sat, 20 Jan 2001 00:05:54 +0000 (00:05 +0000)]
In the Programmer's Guide, the sample code for accessing large objects
from libpq has two functions with memory leaks.

The functions pickout() and overwrite() malloc space for buf which is
never freed.

See
http://www.postgresql.org/users-lounge/docs/7.0/programmer/largeobjects3207.htm

This problem is also in the 6.5 docs at
http://www.postgresql.org/users-lounge/docs/6.5/programmer/x3184.htm

Nishad Prakash

23 years agoStill further tweaking of s_lock assembler: do not assume that leading
Tom Lane [Sat, 20 Jan 2001 00:03:55 +0000 (00:03 +0000)]
Still further tweaking of s_lock assembler: do not assume that leading
whitespace is unimportant in assembly code.  Also, move VAX definition
of typedef slock_t to port header files to be like all the other ports.
Note that netbsd.h and openbsd.h are now identical, and I rather think
that freebsd.h is broken in the places where it doesn't agree --- but
I'll leave it to the freebsders to look at that.

23 years agoFrom Jason Tishler <jt@dothill.com>
Peter Eisentraut [Fri, 19 Jan 2001 23:43:36 +0000 (23:43 +0000)]
From Jason Tishler <jt@dothill.com>

* doc/FAQ_MSWIN: Update to be consistent with software -- mainly change
comment from lack of Cygwin UNIX domain socket support and to list of
current Cygwin UNIX domain socket issues.
* src/include/config.h.in: Enable UNIX domain sockets for Cygwin.
* src/include/port/win.h: Disable UNIX domain sockets for Cygwin b20.1.
* src/test/regress/pg_regress.sh: Use UNIX domain sockets for Cygwin
instead of TCP/IP.

23 years agoAdd.
Bruce Momjian [Fri, 19 Jan 2001 22:34:45 +0000 (22:34 +0000)]
Add.

23 years agoMake critical sections (elog->crash) and interrupt holdoff sections
Tom Lane [Fri, 19 Jan 2001 22:08:47 +0000 (22:08 +0000)]
Make critical sections (elog->crash) and interrupt holdoff sections
into distinct concepts, per recent discussion on pghackers.

23 years agocleanup.
Bruce Momjian [Fri, 19 Jan 2001 21:09:57 +0000 (21:09 +0000)]
cleanup.

23 years agoRemove ; and add \n to ASM code.
Bruce Momjian [Fri, 19 Jan 2001 20:39:16 +0000 (20:39 +0000)]
Remove ; and add \n to ASM code.

23 years agoupdate
Bruce Momjian [Fri, 19 Jan 2001 19:50:04 +0000 (19:50 +0000)]
update

23 years agoUpdate to reality.
Peter Eisentraut [Fri, 19 Jan 2001 19:43:27 +0000 (19:43 +0000)]
Update to reality.

23 years agoMake pqexpbuffer a little more robust, per bug report from Heinz Ekker.
Tom Lane [Fri, 19 Jan 2001 19:39:23 +0000 (19:39 +0000)]
Make pqexpbuffer a little more robust, per bug report from Heinz Ekker.

23 years agoRepair circular dependencies and broken clean commands.
Peter Eisentraut [Fri, 19 Jan 2001 19:15:33 +0000 (19:15 +0000)]
Repair circular dependencies and broken clean commands.

23 years agoChange
Peter Eisentraut [Fri, 19 Jan 2001 19:06:48 +0000 (19:06 +0000)]
Change
#! /usr/local/bin/perl -w
to
#! /usr/bin/perl

The path is probably more portable, and the -w was kind of silly for a six
line script that produces two warnings as it stands.

23 years agoChange
Peter Eisentraut [Fri, 19 Jan 2001 18:35:40 +0000 (18:35 +0000)]
Change
#! /usr/local/bin/python
to
#! /usr/bin/env python
which is the recommended way.

23 years agoAdd email.
Bruce Momjian [Fri, 19 Jan 2001 18:19:34 +0000 (18:19 +0000)]
Add email.

23 years agoAdd more about LRU-2.
Bruce Momjian [Fri, 19 Jan 2001 18:00:22 +0000 (18:00 +0000)]
Add more about LRU-2.

23 years agoAdd to optimizer file.
Bruce Momjian [Fri, 19 Jan 2001 16:54:31 +0000 (16:54 +0000)]
Add to optimizer file.

23 years agoUpdate TODO list.
Bruce Momjian [Fri, 19 Jan 2001 16:54:01 +0000 (16:54 +0000)]
Update TODO list.

23 years agoUpdate TODO list.
Bruce Momjian [Fri, 19 Jan 2001 16:34:14 +0000 (16:34 +0000)]
Update TODO list.

23 years ago> > I have attached a simple change to src/pl/plperl/plperl.c to
Bruce Momjian [Fri, 19 Jan 2001 16:14:36 +0000 (16:14 +0000)]
> > I have attached a simple change to src/pl/plperl/plperl.c to
> > enable the :bash_math opcodes.  Currently plperl.c only
> > enables the :default opcodes.  This leave out about five of six
> > math functions including sqrt().

Travis Bauer

23 years agoFri Jan 19 08:47:00 GMT 2001 peter@retep.org.uk
Peter Mount [Fri, 19 Jan 2001 08:49:06 +0000 (08:49 +0000)]
Fri Jan 19 08:47:00 GMT 2001 peter@retep.org.uk
        - Applied patch submitted by John Schutz <schutz@austin.rr.com> that
          fixed a bug with ANT's SQL functions (not needed for building but nice
          to have fixed).

23 years agoFix alignment
Bruce Momjian [Fri, 19 Jan 2001 07:03:53 +0000 (07:03 +0000)]
Fix alignment

23 years agoFix univel asm alignment
Bruce Momjian [Fri, 19 Jan 2001 06:59:59 +0000 (06:59 +0000)]
Fix univel asm alignment

23 years agoSuppress compiler warning in MULTIBYTE code.
Tom Lane [Fri, 19 Jan 2001 06:57:25 +0000 (06:57 +0000)]
Suppress compiler warning in MULTIBYTE code.

23 years agoSuppress compiler warning in MULTIBYTE case.
Tom Lane [Fri, 19 Jan 2001 06:54:57 +0000 (06:54 +0000)]
Suppress compiler warning in MULTIBYTE case.

23 years agoSuppress unused-variable warning in non-Assert compilations.
Tom Lane [Fri, 19 Jan 2001 06:50:23 +0000 (06:50 +0000)]
Suppress unused-variable warning in non-Assert compilations.

23 years agoNew emails.
Bruce Momjian [Fri, 19 Jan 2001 05:09:47 +0000 (05:09 +0000)]
New emails.

23 years agoAdd to type conversion TODO emails.
Bruce Momjian [Fri, 19 Jan 2001 04:57:43 +0000 (04:57 +0000)]
Add to type conversion TODO emails.

23 years agoUpdate docs to explain that 7.1 locks down LC_COLLATE and LC_CTYPE at
Tom Lane [Fri, 19 Jan 2001 04:47:50 +0000 (04:47 +0000)]
Update docs to explain that 7.1 locks down LC_COLLATE and LC_CTYPE at
initdb time.  A few copy-editing cleanups, too.

23 years agoUpdate TODO list.
Bruce Momjian [Fri, 19 Jan 2001 04:07:58 +0000 (04:07 +0000)]
Update TODO list.

23 years agoAdd __volatile__ to all __asm__ and make consistent indenting
Bruce Momjian [Fri, 19 Jan 2001 03:58:35 +0000 (03:58 +0000)]
Add __volatile__ to all __asm__ and make consistent indenting

23 years agoNew ASM format:
Bruce Momjian [Fri, 19 Jan 2001 02:58:59 +0000 (02:58 +0000)]
New ASM format:

/*
 * Standard __asm__ format:
 *
 *  __asm__(
 *          "command;"
 *          "command;"
 *          "command;"
 *      :   "=r"(_res)          return value, in register
 *      :   "r"(lock)           argument, 'lock pointer', in register
 *      :   "r0");              inline code uses this register
 */

23 years agoUpdate TODO list.
Bruce Momjian [Fri, 19 Jan 2001 02:53:52 +0000 (02:53 +0000)]
Update TODO list.

23 years agoUpdate TODO list.
Bruce Momjian [Fri, 19 Jan 2001 02:05:51 +0000 (02:05 +0000)]
Update TODO list.

23 years agoFix VAX ASM '1 f' -> '1f'.
Bruce Momjian [Thu, 18 Jan 2001 23:40:26 +0000 (23:40 +0000)]
Fix VAX ASM '1 f' -> '1f'.

23 years agoOops. Remove extra semicolon in comment.
Bruce Momjian [Thu, 18 Jan 2001 19:12:36 +0000 (19:12 +0000)]
Oops.  Remove extra semicolon in comment.

23 years agoUpdate TODO list.
Bruce Momjian [Thu, 18 Jan 2001 18:52:20 +0000 (18:52 +0000)]
Update TODO list.

23 years agoComment out xlrec in xact_redo - no support for file unlinking on
Vadim B. Mikheev [Thu, 18 Jan 2001 18:33:45 +0000 (18:33 +0000)]
Comment out xlrec in xact_redo - no support for file unlinking on
commit yet.

23 years agoForgot to cvs add UpdateableResultSet.java ;-)
Peter Mount [Thu, 18 Jan 2001 17:38:50 +0000 (17:38 +0000)]
Forgot to cvs add UpdateableResultSet.java ;-)

23 years agoThu Jan 18 17:37:00 GMT 2001 peter@retep.org.uk
Peter Mount [Thu, 18 Jan 2001 17:37:15 +0000 (17:37 +0000)]
Thu Jan 18 17:37:00 GMT 2001 peter@retep.org.uk
        - Added new error message into errors.properties "postgresql.notsensitive"
          This is used by jdbc2.ResultSet when a method is called that should
          fetch the current value of a row from the database refreshRow() for
          example.
        - These methods no longer throw the not implemented but the new noupdate
          error. This is in preparation for the Updateable ResultSet support
          which will overide these methods by extending the existing class to
          implement that functionality, but needed to show something other than
          notimplemented:
            moveToCurrentRow()
            moveToInsertRow()
            rowDeleted()
            rowInserted()
            all update*() methods, except those that took the column as a String
            as they were already implemented to convert the String to an int.
        - getFetchDirection() and setFetchDirection() now throws
          "postgresql.notimp" as we only support one direction.
          The CursorResultSet will overide this when its implemented.
        - Created a new class under jdbc2 UpdateableResultSet which extends
          ResultSet and overides the relevent update methods.
          This allows us to implement them easily at a later date.
        - In jdbc2.Connection, the following methods are now implemented:
            createStatement(type,concurrency);
            getTypeMap();
            setTypeMap(Map);
        - The JDBC2 type mapping scheme almost complete, just needs SQLInput &
          SQLOutput to be implemented.
        - Removed some Statement methods that somehow appeared in Connection.
        - In jdbc2.Statement()
            getResultSetConcurrency()
            getResultSetType()
            setResultSetConcurrency()
            setResultSetType()
        - Finally removed the old 6.5.x driver.

23 years agoThu Jan 18 12:24:00 GMT 2001 peter@retep.org.uk
Peter Mount [Thu, 18 Jan 2001 14:50:15 +0000 (14:50 +0000)]
Thu Jan 18 12:24:00 GMT 2001 peter@retep.org.uk
        - These methods in org.postgresql.jdbc2.ResultSet are now implemented:
            getBigDecimal(int) ie: without a scale (why did this get missed?)
            getBlob(int)
            getCharacterStream(int)
            getConcurrency()
            getDate(int,Calendar)
            getFetchDirection()
            getFetchSize()
            getTime(int,Calendar)
            getTimestamp(int,Calendar)
            getType()
          NB: Where int represents the column name, the associated version
              taking a String were already implemented by calling the int
              version.
        - These methods no longer throw the not implemented but the new noupdate
          error. This is in preparation for the Updateable ResultSet support
          which will overide these methods by extending the existing class to
          implement that functionality, but needed to show something other than
          notimplemented:
            cancelRowUpdates()
            deleteRow()
        - Added new error message into errors.properties "postgresql.noupdate"
          This is used by jdbc2.ResultSet when an update method is called and
          the ResultSet is not updateable. A new method notUpdateable() has been
          added to that class to throw this exception, keeping the binary size
          down.
        - Added new error message into errors.properties "postgresql.psqlnotimp"
          This is used instead of unimplemented when it's a feature in the
          backend that is preventing this method from being implemented.
        - Removed getKeysetSize() as its not part of the ResultSet API

Thu Jan 18 09:46:00 GMT 2001 peter@retep.org.uk
        - Applied modified patch from Richard Bullington-McGuire
          <rbulling@microstate.com>. I had to modify it as some of the code
          patched now exists in different classes, and some of it actually
          patched obsolete code.

Wed Jan 17 10:19:00 GMT 2001 peter@retep.org.uk
        - Updated Implementation to include both ANT & JBuilder
        - Updated README to reflect the changes since 7.0
- Created jdbc.jpr file which allows JBuilder to be used to edit the
          source. JBuilder _CAN_NOT_ be used to compile. You must use ANT for
          that. It's only to allow JBuilders syntax checking to improve the
          drivers source. Refer to Implementation for more details

23 years agoFix some leaks(was my fault).
Hiroshi Inoue [Thu, 18 Jan 2001 07:29:04 +0000 (07:29 +0000)]
Fix some leaks(was my fault).

23 years agoFix up "Postgres-style" time interval representation when fields have
Thomas G. Lockhart [Thu, 18 Jan 2001 07:22:43 +0000 (07:22 +0000)]
Fix up "Postgres-style" time interval representation when fields have
 mixed-signs. Previous effort left way too many minus signs, and was at
 least as broken as the one before that :(
Clean up "ISO-style" time interval representation to omit zero fields if
 there is at least one non-zero field. Supress some leading plus signs
 when not necessary for clarity.
Replace every #ifdef __CYGWIN__ block with a cleaner TIMEZONE_GLOBAL macro
 defined in datetime.h.

23 years agoFix incorrect placeholder name in example.
Thomas G. Lockhart [Thu, 18 Jan 2001 07:18:39 +0000 (07:18 +0000)]
Fix incorrect placeholder name in example.

23 years agoAdd "--nodata" option to allow schema conversion only.
Thomas G. Lockhart [Thu, 18 Jan 2001 07:16:56 +0000 (07:16 +0000)]
Add "--nodata" option to allow schema conversion only.

23 years agoFix performance issue with qualifications on VIEWs: outer query should
Tom Lane [Thu, 18 Jan 2001 07:12:37 +0000 (07:12 +0000)]
Fix performance issue with qualifications on VIEWs: outer query should
try to push restrictions on the view down into the view subquery,
so that they can become indexscan quals or what-have-you rather than
being applied at the top level of the subquery.  7.0 and before were
able to do this, though in a much klugier way, and I'd hate to have
anyone complaining that 7.1 is stupider than 7.0 ...

23 years agoReplace contraction with long form. Cosmetic only.
Thomas G. Lockhart [Thu, 18 Jan 2001 07:11:36 +0000 (07:11 +0000)]
Replace contraction with long form. Cosmetic only.

23 years agoAdd "OK, OK, Hiroshi's right" thread.
Bruce Momjian [Thu, 18 Jan 2001 04:12:47 +0000 (04:12 +0000)]
Add "OK, OK, Hiroshi's right" thread.

23 years agoChange LockClassinfoForUpdate() to retry mark4update() in case
Hiroshi Inoue [Thu, 18 Jan 2001 04:01:42 +0000 (04:01 +0000)]
Change LockClassinfoForUpdate() to retry mark4update() in case
the tuple is already uodated. (If LockClassinfoForUpdate() is
thought to be useful).

23 years agoUpdate TODO list.
Bruce Momjian [Thu, 18 Jan 2001 03:15:55 +0000 (03:15 +0000)]
Update TODO list.

23 years agoUpdate TODO list.
Bruce Momjian [Thu, 18 Jan 2001 03:15:26 +0000 (03:15 +0000)]
Update TODO list.

23 years agoFunctions -> Function's
Bruce Momjian [Wed, 17 Jan 2001 22:13:33 +0000 (22:13 +0000)]
Functions -> Function's

23 years agoattached is a patch that makes SysV semaphore emulation
Bruce Momjian [Wed, 17 Jan 2001 22:11:19 +0000 (22:11 +0000)]
attached is a patch that makes SysV semaphore emulation
using POSIX semaphores more robust on Darwin 1.2/Mac OS X
Public Beta.  this is for the version of 7.1 available
via anon cvs as of Jan 14 2001 14:00 PST.

since the semaphores and shared memory created by this
emulator are shared with the backends via fork(), their
persistent names are not necessary.  removing their
names with shm_unlink() and sem_unlink() after creation
obviates the need for any "ipcclean" function.  further,
without these changes, the shared memory (and, therefore,
the semaphores) will not be re-initialized/re-created after
the first execution of the postmaster, until reboot
or until some (non-existent) ipcclean function is executed.

this patch does the following:

   1) if the shared memory segment "SysV_Sem_Info" already
      existed, it is cleaned up.  it shouldn't be there anyways.

   2) the real indicator for whether the shared memory/semaphore
      emulator has been initialized is if "SemInfo" has been
      initialized.  the shared memory and semaphores must be
      initialized regardless of whether there was a garbage shared
      memory segment lying around.

   3) the shared memory segment "SysV_Sem_Info" is created with "O_EXCL"
      to catch the case where two postmasters might be starting
      simultaneously, so they don't both end up with the same shared
      memory (one will fail).  note that this can't be done with the
      semaphores because Darwin 1.2 has a bug where attempting to
      open an existing semaphore with "O_EXCL" set will ruin the
      semaphore until the next reboot.

   4) the shared memory segment "SysV_Sem_Info" is unlinked after
      it is created.  it will then exist without a name until the
      postmaster and all backend children exit.
   5) all semaphores are unlinked after they are created.  they'll
      then exist without names until the postmaster and all backend
      children exit.

-michael thornburgh, zenomt@armory.com

23 years agoChange lcons(x, NIL) to makeList(x) where appropriate.
Bruce Momjian [Wed, 17 Jan 2001 17:26:45 +0000 (17:26 +0000)]
Change lcons(x, NIL) to makeList(x) where appropriate.

23 years agoChange comparisons of tm->tm_isdst from "nonzero" to "greater than zero".
Thomas G. Lockhart [Wed, 17 Jan 2001 16:46:56 +0000 (16:46 +0000)]
Change comparisons of tm->tm_isdst from "nonzero" to "greater than zero".
 Not sure why some were this way, and others were already correct, but it
 seems to have been like this for several years.
This caused problems on a few damaged platforms like AIX and IRIX which do
 not support DST calculations for years before 1970.
Thanks to Andreas Zeugswetter <ZeugswetterA@wien.spardat.at> for finding
 the problem.

23 years agoThere are misprints in postgres doc., in :
Bruce Momjian [Wed, 17 Jan 2001 16:34:34 +0000 (16:34 +0000)]
There are misprints in postgres doc., in :
Chapter 10. PL/pgSQL - SQL Procedural Language (c40914117.htm)

Statements
...
(resulting in a PL/pgSQL internal SELECT).
But there are cases where someone isn't interested int
-----------------------------------------(have to be)-->
But there are cases where someone isn't interested in
     the functions result.

 RAISE level format''
--(have to be)-->
 RAISE level 'format'

23 years agoMove structure comments from the top block down to the line entries for
Bruce Momjian [Wed, 17 Jan 2001 06:41:31 +0000 (06:41 +0000)]
Move structure comments from the top block down to the line entries for
this file to match all the other files, and to be clearer.

23 years agoRemove bogus backslashes in sed command.
Tom Lane [Tue, 16 Jan 2001 22:48:34 +0000 (22:48 +0000)]
Remove bogus backslashes in sed command.

23 years agoOops, I had managed to break query-cancel-while-waiting-for-lock.
Tom Lane [Tue, 16 Jan 2001 20:59:34 +0000 (20:59 +0000)]
Oops, I had managed to break query-cancel-while-waiting-for-lock.

23 years agoRename fields of lock and lockholder structures to something a tad less
Tom Lane [Tue, 16 Jan 2001 06:11:34 +0000 (06:11 +0000)]
Rename fields of lock and lockholder structures to something a tad less
confusing, and clean up documentation.

23 years agoShow intarray contrib module in contrib/README and Makefile.
Tom Lane [Mon, 15 Jan 2001 22:20:00 +0000 (22:20 +0000)]
Show intarray contrib module in contrib/README and Makefile.

23 years agoAdjust file names.
Peter Eisentraut [Mon, 15 Jan 2001 21:17:27 +0000 (21:17 +0000)]
Adjust file names.

23 years agoFix problems with parentheses around sub-SELECT --- for the last time,
Tom Lane [Mon, 15 Jan 2001 20:36:36 +0000 (20:36 +0000)]
Fix problems with parentheses around sub-SELECT --- for the last time,
I hope.  I finally realized that we were going at it backwards: when
there are excess parentheses, they need to be treated as part of the
sub-SELECT, not as part of the surrounding expression.  Although either
choice yields an unambiguous grammar, only this way produces a grammar
that is LALR(1).  With the old approach we were guaranteed to fail on
either 'SELECT (((SELECT 2)) + 3)' or
'SELECT (((SELECT 2)) UNION SELECT 2)' depending on which way we
resolve the initial shift/reduce conflict.  With the new way, the same
reduction track can be followed in both cases until we have advanced
far enough to know whether we are done with the sub-SELECT or not.

23 years agoTweak heap_update/delete so that we do not hold the buffer context lock
Tom Lane [Mon, 15 Jan 2001 05:29:19 +0000 (05:29 +0000)]
Tweak heap_update/delete so that we do not hold the buffer context lock
on the old tuple's page while we are doing TOAST pushups.

23 years agoMinor coding cleanups.
Tom Lane [Sun, 14 Jan 2001 22:21:54 +0000 (22:21 +0000)]
Minor coding cleanups.

23 years agoAnother go-round on making GetRawDatabaseInfo behave as well as it can,
Tom Lane [Sun, 14 Jan 2001 22:21:05 +0000 (22:21 +0000)]
Another go-round on making GetRawDatabaseInfo behave as well as it can,
given the fundamental restriction of not looking at transaction commit
data in pg_log.  Use code that is actually based on tqual.c rather than
ad-hoc tests.  Also write the tuple fetch loop using standard access
macros rather than ad-hoc code.