Tag as Beta3 ... two outstanding *known* bugs before RC1 ...

in PITR scenarios.  We now WAL-log the replacement of old XIDs with
FrozenTransactionId, so that such replacement is guaranteed to propagate to
PITR slave databases.  Also, rather than relying on hint-bit updates to be
preserved, pg_clog is not truncated until all instances of an XID are known to
have been replaced by FrozenTransactionId.  Add new GUC variables and
pg_autovacuum columns to allow management of the freezing policy, so that
users can trade off the size of pg_clog against the amount of freezing work
done.  Revise the already-existing code that forces autovacuum of tables
approaching the wraparound point to make it more bulletproof; also, revise the
autovacuum logic so that anti-wraparound vacuuming is done per-table rather
than per-database.  initdb forced because of changes in pg_class, pg_database,
and pg_autovacuum catalogs.  Heikki Linnakangas, Simon Riggs, and Tom Lane.

suggestion from Sergey Koposov.  Also some other minor editing.

command strings inserts relative not absolute path of file to process.
This is a side-effect of 2005-07-04 change that makes the server use
relative paths in general.  Noted by Bernd Helmle.

return, per suggestion from Joachim Wieland.

reference pages documenting that these commands cannot be used within
a transaction block. Also make some minor improvements to the psql
reference page. Patch from Simon Riggs, minor editorialization by
myself.

load balancing, and clustering options.

clustering options.

* Add estimated_count(*) to return an estimate of COUNT(*)
>   http://archives.postgresql.org/pgsql-hackers/2005-11/msg00943.php

* Speed up COUNT(*)
>   http://archives.postgresql.org/pgsql-hackers/2005-11/msg00943.php

instead of the SQL92 output-column-ID case.

than just showing the incomprehensible formulas.

that are almost never used.  Put documentation-related variables into the
documentation chapter.

because the function didn't exist in 7.4.X.

Marko Kreen

>   http://archives.postgresql.org/pgsql-hackers/2006-10/msg00820.php

the politically correct view that backslash escapes are deprecated.

Remove obsolete note about logging of statements generated by plpgsql
function execution ... that doesn't happen anymore.

< * Improve port/qsort() to handle sorts with 50% unique and 50% duplicate
<   value [qsort]
<
<   This involves choosing better pivot points for the quicksort.
<

timezone actually has a daylight-savings rule.  This avoids breaking
cases that used to work because they went through the DecodePosixTimezone
code path.  Per contrib regression failures (mea culpa for not running
those yesterday...).  Also document the already-applied change to allow
GMT offsets up to 14 hours.

input routines.  Remove the former "DecodePosixTimezone" function in favor of
letting the zic code handle POSIX-style zone specs (see tzparse()).  In
particular this means that "PST+3" now means the same as "-03", whereas it
used to mean "-11" --- the zone abbreviation is effectively just a noise word
in this syntax.  Make sure that all named and POSIX-style zone names will be
parsed as a single token.  Fix long-standing bogosities in printing and input
of fractional-hour timezone offsets (since the tzparse() code will accept
these, we'd better make 'em work).  Also correct an error in the original
coding of the zic-zone-name patch: in "timestamp without time zone" input,
zone names are supposed to be allowed but ignored, but the coding was such
that the zone changed the interpretation anyway.

Wheeler.