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fixed a bug with not commenting out FSYNC= in initdb.sh

Fixes:

I have written some patches which add support for NULLs to Postgres95.
In fact support for NULLs was already present in postgres, but it had been
disabled because not completely debugged, I believe. My patches simply add
some checks here and there. To enable the new code you must add -DNULL_PATCH
to CFLAGS in Makefile.global. After recompiling you can do things like:

insert into a (x, y) values (1, NULL);
update a set x = NULL where x = 0;

You can't still use a "where x=NULL" clause, you must use ISNULL instead.
This could probably be an easy fix to do.




Submitted by: Massimo Dal Zotto <dz@cs.unitn.it>

- improve date/time parsing routines

- submitted by: Massimo Dal Zotto <dz@cs.unitn.it>

Fixes:

Select queries with an isnull or notnull clause, like "select * where
somefield isnull", crash the backend if the table has at least one index.
If the indices are deleted the queries work again. Also the explain
command fail in the same way.
The is caused by a bug in subroutine of the optimizer which doesn't check
null values in the clauses.

Submitted by: Massimo Dal Zotto <dz@cs.unitn.it>

- libpq calls "fe_getauthname()" two times in "fe-connect.c", but
doesn't free the buffer allocated by this function.

- submitted by: Erich Stamberger <eberger@gewi.kfunigraz.ac.at>

- added -ltermcap to LIBS in bin/psql/Makefile

- submitted by: Bruce Momjian (root@candle.pha.pa.us)

Removed -I${HEADERFILE} from bin/Makefile.global

Fix PAGER bug in createuser/etc scripts

submitted by: Bruce Momjian (root@candle.pha.pa.us)

Fixes:

'select distinct on' causes backend to crash

submitted by: Chris Dunlop chris@onthe.net.au

Fixes:

This is a patch to prevent an endless loop occuring in the Postgres backend
when a 'warning' error condition generates another warning error contition
in the handler code.

Submitted by: Chris Dunlop, <chris@onthe.net.au>

fixes for textcat(), but headers were missing from archive :(

Fixes compile errors with irix5 port

Submitted by: Thomas van Reimersdahl <reimersd@dali.techinfo.rwth-aachen.de>

Fixes:
minor Makefile changes to force setting of SRCDIR and ordering of
include files

Submitted by: Bruce Momjian (root@candle.pha.pa.us)

Fixes:

It is not possible to define attributes as arrays of date or time, the
type _time and _date are not defined.

Submitted by: Massimo Dal Zotto <dz@cs.unitn.it>

Fixes:

The type _char16 (array of char16) is incorrectly defined as array of name
and values longer than 16 chars are stored as names and not truncated to 16
bytes as they should be.

Submitted by: Massimo Dal Zotto <dz@cs.unitn.it>

libpq and psql.c have been modified to do various things they didn't do
before (plus some optimisations/bug fixes et al). I've included a small
demo transcript below. Note that all of of the display
functionality/intelligence you see here, can be had merely by calling
the new LIBPQ PQprint() routine with the appropriate arguments/options,
including the HTML3 output guff.


submitted by: Julian Assange <proff@suburbia.net>

Fixes: In the solaris port the file descriptors are hard coded to 20 (from the
include file sys/param.h

Submitted by: michael.siebenborn@ae3.Hypo.DE (Michael Siebenborn (6929))

fix: BSDi 2.1 requires a port seperate from BSDi 2.0{.1}

submitted by: Bruce Momjian (root@candle.pha.pa.us)

fix: clean up formatting of \d tablename in psql

submitted by: Bruce Momjian (root@candle.pha.pa.us)

fix: During a BSD/OS(BSDI) 2.1 compile, I got errors about undefined
S_LOCK_'s during the postgres link phase.

submitted by: Bruce Momjian (root@candle.pha.pa.us)

applied fixes for psql
- \p produces traditional results
- \r added

submitted by: Bruce Momjian (root@candle.pha.pa.us)

adds: case insensitive regexp for varchar
From: azcb0@sde.uts.amdahl.com

fsync patch from openlink

NOTE: FSYNC needs to be set at top of initdb.sh to enable use of fsync
patches...disabled by default

fsync patch from openlink

Submitted by Openlink, requires -DOPENLINK_PATCHES in Makefile.global

varchar.diff
------------
This patch was necessary for the OpenLink Postgres Database Agent.
I think this fixes a bug anyway.

The following query demonstrates this bug:

create table foo (bar varchar);
insert into foo values (''); -- no problem
select * from foo where bar = ''; -- fails

Makefile.global changes to show option -DOPENLINK_PATCHES

Moved two defines required for FreeBSD into Makefile.global

The idea is that its right beside PORTNAME, so if it doesn't apply to
the OS in question, it can be rememberd to disable it...

Brought in extensions to pg_dump

Submitted by: david bennett <dave@bensoft.com>
marc g. fournier <scrappy@ki.net>

fixes for several potential null pointer dereferences

submitted by: Paul "Shag" Walmsley <ccshag@cclabs.missouri.edu>

Fixes: Using LIKE or ~ operator on text type files which are null valued
causes segmentation fault.

Thanks to: Salvador Ortiz Garcia, Robert Patrick, Paul 'Shag' Walmsley,
and James Cooper for finding and fixing the problem.