uses of the long-deprecated float32 in contrib/seg; the definitions themselves
are still there, but no longer used.  fmgr/README updated to match.

I added a CREATE FUNCTION to account for existing seg_center() code in seg.c
too, and some tests for it and the neighbor functions.  At the same time,
remove checks for NULL which are not needed (because the functions are declared
STRICT).

I had to do some adjustments to contrib's btree_gist too.  The choices for
representation there are not ideal for changing the underlying types :-(

Original patch by Zoltan Boszormenyi, with some adjustments by me.

"consistent" functions, and remove pg_amop.opreqcheck, as per recent
discussion.  The main immediate benefit of this is that we no longer need
8.3's ugly hack of requiring @@@ rather than @@ to test weight-using tsquery
searches on GIN indexes.  In future it should be possible to optimize some
other queries better than is done now, by detecting at runtime whether the
index match is exact or not.

Tom Lane, after an idea of Heikki's, and with some help from Teodor.

	remove transactions
	use create or replace function
	make formatting consistent
	set search patch on first line

Add documentation on modifying *.sql to set the search patch, and
mention that major upgrades should still run the installation scripts.

Some of these issues were spotted by Tom today.

or will never be converted.

Found by running opr_sanity on contrib modules.

installations whose pg_config program does not appear first in the PATH.
Per gripe from Eddie Stanley and subsequent discussions with Fabien Coelho
and others.

* new split algorithm (as proposed in http://archives.postgresql.org/pgsql-hackers/2006-06/msg00254.php)
  * possible call pickSplit() for second and below columns
  * add spl_(l|r)datum_exists to GIST_SPLITVEC -
    pickSplit should check its values to use already defined
    spl_(l|r)datum for splitting. pickSplit should set
    spl_(l|r)datum_exists to 'false' (if they was 'true') to
    signal to caller about using spl_(l|r)datum.
  * support for old pickSplit(): not very optimal
    but correct split
* remove 'bytes' field from GISTENTRY: in any case size of
  value is defined by it's type.
* split GIST_SPLITVEC to two structures: one for using in picksplit
  and second - for internal use.
* some code refactoring
* support of subsplit to rtree opclasses

TODO: add support of subsplit to contrib modules

see if using an intermediate variable avoids the gcc bug.

in every shared library.

is done for the analogous files in the main distribution.

Most of the changes add the mandatory USING clause to DROP OPERATOR
CLASS statements.  DROP TYPE is now DROP TYPE CASCADE; without
CASCADE a DROP TYPE fails due to the circular dependency on the
type's I/O functions.  The DROP FUNCTION statements for the I/O
functions have been removed, as DROP TYPE CASCADE removes them
automatically. Patch from Michael Fuhr.

(respectively) to rename yylex and related symbols.  Some were doing
it this way already, while others used not-too-reliable sed hacks in
the Makefiles.  It's all nice and consistent now.

particular get rid of single quotes around language names and old WITH ()
construct.

by David Fetter

when not using gcc (which has slightly nonstandard inclusion rules).

Fedora).  This was already done by somebody for the core flex files,
but these contrib files seem to have been missed.

to avoid useless multiple executions of pg_config.

works properly for 1-D comparisons.  Fix some other errors such as
bogus commutator specifications.

unlike template0 and template1 does not have any special status in
terms of backend functionality.  However, all external utilities such
as createuser and createdb now connect to "postgres" instead of
template1, and the documentation is changed to encourage people to use
"postgres" instead of template1 as a play area.  This should fix some
longstanding gotchas involving unexpected propagation of database
objects by createdb (when you used template1 without understanding
the implications), as well as ameliorating the problem that CREATE
DATABASE is unhappy if anyone else is connected to template1.
Patch by Dave Page, minor editing by Tom Lane.  All per recent
pghackers discussions.

methods in a short-lived memory context, there is no need for GiST methods
to do their own manual (and error-prone) memory management.

getting rid of numerous ad-hoc versions that have popped up in various
places.  Shortens code and avoids conflict with Windows min() and max()
macros.

Andreas Pflug

compiler that warns about it.

>
> The patch adds missing the "libpgport.a" file to the installation under
> "install-all-headers". It is needed by some contribs. I install the
> library in "pkglibdir", but I was wondering whether it should be "libdir"?
> I was wondering also whether it would make sense to have a "libpgport.so"?
>
> It fixes various macros which are used by contrib makefiles, especially
> libpq_*dir and LDFLAGS when used under PGXS. It seems to me that they are
> needed to
>
> It adds the ability to test and use PGXS with contribs, with "make
> USE_PGXS=1". Without the macro, this is exactly as before, there should be
> no difference, esp. wrt the vpath feature that seemed broken by previous
> submission. So it should not harm anybody, and it is useful at least to me.
>
> It fixes some inconsistencies in various contrib makefiles
> (useless override, ":=" instead of "=").

Fabien COELHO

boxes. Change interface to user-defined GiST support methods union and
picksplit. Now instead of bytea struct it used special GistEntryVector
structure.

Per recent proposal to pghackers.

exposed thereby.  AFAICT these would not lead to any worse problems than
junk emitted on the backend's stdout, but we should have the option to
catch possible worse errors in future.

$Header: -> $PostgreSQL Changes ...

btree operator class, too, since in PG 7.4 you can't GROUP without one.