_bt_checkkeys(), instead of checking it in the top-level nbtree.c routines
as formerly.  This saves a little bit of loop overhead, but more importantly
it lets us skip performing the index key comparisons for dead tuples.

checks, which were once needed because PageGetMaxOffsetNumber would
fail on empty pages, but are now just redundant.  Also, don't set up
local variables that aren't needed in the fast path --- most of the
time, we only need to advance offnum and not step across a page boundary.
Motivated by noticing _bt_step at the top of OProfile profile for a
pgbench run.

<   at initdb time or optionally later.
>   at initdb time or optionally later.  Consider O_SYNC when
>   O_DIRECT exists.

 - allow ~ in filenames
 - -8.2.1 now is '-' and '8.2.1' instead of '-8.2' '.' '3'
 - '.text' now is not a file

SLRU area.  The number of slots is still a compile-time constant (someday
we might want to change that), but at least it's a different constant for
each SLRU area.  Increase number of subtrans buffers to 32 based on
experimentation with a heavily subtrans-bashing test case, and increase
number of multixact member buffers to 16, since it's obviously silly for
it not to be at least twice the number of multixact offset buffers.

> * Add GUC variable to run a command on database panic or
>   smart/fast/immediate shutdown

file.  Backpatch to 8.1.X.

Paul Lindner

non-ascii                       convert to & escapes

the latest release notes there is a latin1 character that shouldn't be
there so I made a patch to fix that. This patch also fixes some old
entries that uses o instead of ö (which is also wrong but not as
bad as including a latin1 character in the sgml file).

Dennis Bj?rklund

Backpatch to 8.1.X.

lock, not exclusive, if the desired page is already in memory.  This can
be demonstrated to be a significant win on the pg_subtrans cache when there
is a large window of open transactions.  It should be useful for pg_clog
as well.  I didn't try to make GetMultiXactIdMembers() use the code, as
that would have taken some restructuring, and what with the local cache
for multixact contents it probably wouldn't really make a difference.
Per my recent proposal.

clauses even if it's an outer join.  This is a corner case since such
clauses could only arise from weird OUTER JOIN ON conditions, but worth
fixing.  Per example from Ron at cheapcomplexdevices.com.

Win32.

Backpatch to 8.1.X.

on libintl which may or may not provide what we need.  Make a few marginal
cleanups to ensure this works.  Andrew Dunstan and Tom Lane.

suggestion from Bruce.

 - improve file and path recognition
 - fix misspeling
 - improve tag recognition

incorrect implementation of argument reordering, arbitrary limit of output
size for sprintf and fprintf, willingness to access more bytes than "%.Ns"
specification allows, wrong formatting of LONGLONG_MIN, various field-padding
bugs and omissions.  I believe it now accurately implements a subset of
the Single Unix Spec requirements (remaining unimplemented features are
documented, too).  Bruce Momjian and Tom Lane.

< 	  Win32 API, and we have to make sure MinGW handles it.
> 	  Win32 API, and we have to make sure MinGW handles it.  Another
> 	  option is to wait for the MinGW project to fix it, or use the
> 	  code from the LibGW32C project as a guide.

> 	o Add long file support for binary pg_dump output
>
> 	  While Win32 supports 64-bit files, the MinGW API does not,
> 	  meaning we have to build an fseeko replacement on top of the
> 	  Win32 API, and we have to make sure MinGW handles it.

> * Add SPI_gettypmod() to return the typemod for a TupleDesc

> 	o Consider logging activity either to the logs or a system view

   --with-libedit-preferred  prefer BSD Libedit over GNU Readline

than owned by nobody.  This results in cleaner display of language ACLs,
since the backend's aclchk.c uses the same convention.  AFAICS there is
no practical difference but it's nice to avoid emitting SET SESSION
AUTHORIZATION; also this will make it easier to transition pg_dump to
some future version in which we may include an explicit ownership column
in pg_language.  Per gripe from David Begley.

Per example from Dirk Pirschel.

Map them to a single day, so '30 hours' is 'AM'.

Have to_char(interval) and to_char(time) use "HH", "HH12" as 12-hour
intervals, rather than bypass and print the full interval hours.  This
is neeeded because to_char(time) is mapped to interval in this function.
Intervals should use "HH24", and document suggestion.

Allow "D" format specifiers for interval/time.