Reini Urban

and contrib/xml2

- remove another senseless "extern" keyword that was applied to a
function definition
- change a foo more function signatures from "some_type foo()" to
"some_type foo(void)"
- rewrite another K&R style function definition
- make the type of the "action" function pointer in the KeyWord struct
in src/backend/utils/adt/formatting.c more precise

not update some error message text).

> * Add RESET CONNECTION command to reset all session state
329a331,334
>   This would include resetting of all variables (RESET ALL), dropping of
>   all temporary tables, removal of any NOTIFYs, etc.  This could be used
>   for connection pooling.  We could also change RESET ALL to have this
>   functionality.

Urban

argument, leading to label matching failures at run-time.  Per report from
Patrick Fiche.  Also, fix it so that an unrecognized label argument draws
a more useful error message than 'syntax error'.

name, mainly for debugging purposes.

pg_config_paths.h outside of /src/port.

$(LD) -x -Bshareable to $(CC) -shared on OpenBSD (I suspect this
should be carried over to the other two as well, but will refrain
pending suggestions from people who actually use those platforms).
Per Stefan Kaltenbrunner.

for scanning one term of an OR clause if the index's predicate is implied
by that same OR clause term (possibly in conjunction with top-level WHERE
clauses).  Per recent example from Dawid Kuroczko,
http://archives.postgresql.org/pgsql-performance/2004-10/msg00095.php
Also, fix a very long-standing bug in index predicate testing, namely the
bizarre ordering of decomposition of predicate and restriction clauses.
AFAICS the correct way is to break down the predicate all the way, and
then for each component term see if you can prove it from the entire
restriction set.  The original coding had a purely-implementation-artifact
distinction between ANDing at the top level and ANDing below that, and
proceeded to get the decomposition order wrong everywhere below the top
level, with the result that even slightly complicated AND/OR predicates
could not be proven.  For instance, given
create index foop on foo(f2) where f1=42 or f1=1
    or (f1 = 11 and f2 = 55);
the old code would fail to match this index to the query
select * from foo where f1 = 11 and f2 = 55;
when it obviously ought to match.

don't support junction points.  Doesn't affect native Win32.

-L spec rather than assuming libpython is in the standard search path
(this returns to the way 7.4 did it).  But check the distutils output
to see if it looks like Python has built a shared library, and if so
link with that instead of the probably-not-shared library found in
configdir.

parent table's tablespace, as per gripe from Michael Kleiser.  Choose
a more plausible column order for this view and pg_tables.  Update
documentation of these views, which was missed in original patch.

- replace some function signatures of the form "some_type foo()" with
"some_type foo(void)"
- replace a few instances of a literal 0 being used as a NULL pointer;
there are more instances of this in the code, but I just fixed a few
- in src/backend/utils/mb/wstrncmp.c, replace K&R style function
declarations with ANSI style, remove use of 'register' keyword
- remove an "extern" modifier that was applied to a function definition
(rather than a declaration)

The vars are renamed to data_directory, config_file, hba_file, and
ident_file, and are guaranteed to be set to accurate absolute paths
during postmaster startup.
This commit does not yet do anything about hiding path values from
non-superusers.