previously determined not to be the last segment of a relation.
This reduces the expected cost to one seek, rather than one seek per
segment.  We can get away with this because truncation of a relation
will cause a relcache flush and so the md.c file descriptor will be
closed; when it is re-opened we will re-determine the last segment.

if the OS supports it.  Code will still compile on non-IPv6-aware
machines (feature added by Bruce).

Nigel Kukard

required if a datatype is to be accepted by GROUP BY, DISTINCT, or
ORDER BY.  This is documentation for code changes made pursuant to
pgsql-hackers discussion around 29-Nov-02.

the rationale.

match parent table.  This used to work, but was broken in 7.3 by
rearrangement of code that handles targetlist sorting.  Add a regression
test to catch future breakage.

patches of 9-Dec (permissions fix) and 13-Dec (performance) as well as
a partial fix for locking issues: concurrent DROP COLUMN should not
create trouble anymore.  But concurrent DROP TABLE is still a risk, and
there is no protection at all against creating a column of a domain while
we are altering the domain.

reload the type.

columns in DefineIndex.  So, ALTER TABLE ... PRIMARY KEY will now
automatically add the NOT NULL constraint.  It appeared the alter_table
regression test wanted this to occur, as after the change the regression
test better matched in inline 'fails'/'succeeds' comments.

Rod Taylor

Backpatch to 7.3.X.

target function.  Also, move SetQuerySnapshot() call to avoid assert
failure when a fastpath call is attempted in an aborted transaction.

it diverged from netbsd.h and openbsd.h.  This has now been confirmed.
Accordingly, make all three exactly alike.

< * Have DEFAULT dependency track use of sequence, for DROP DEFAULT check
> * Disallow changing default expression of a SERIAL column

> * Have DEFAULT dependency track use of sequence, for DROP DEFAULT check

needed).  Some desultory const-ification of SPI interface to support this.

of the libpq interface static and dynamic libraries with the freely
downloadable Borland C++ compiler version 5.5 and/or C++ Builder.

Lester Godwin

stop/start nesting, other infelicities.

it took 'em this long to realize it's needed...)

beginning/end of cursor.

Have MOVE return 0/1 depending on cursor position.

Matches SQL spec.

Pass cursor counter from parser as a long rather than int.

Doc updates.

computation: reduce the bucket number mod nbatch.  This changes the
association between original bucket numbers and batches, but that
doesn't matter.  Minor other cleanups in hashjoin code to help
centralize decisions.

> * Allow infinite dates just like infinite timestamps

Kenji Sugita

ExecHashJoinGetBatch().  Fixes core dump on large hash joins, as in
example from Rae Stiening.

Per report from Ian Barwick.

core dump in pg_dump when dumping views having comments.  See bug #855.

7.3 and current CVS

Oleg Bartunov

Philip Warner

> * Two-phase commit to implement distributed transactions