"rihad" <rihad@mail.ru> writes:

> Hi,
>
> Does anyone have an idea how risky it is to start using 8.3b1 in production,
> with the intention of upgrading to release (or newer beta) as soon as it
> becomes available? Risky compared to running a release, that is. Beta ->
> release upgrades might be less tricky than 8.2 -> 8.3.

Well nobody's going to be able to guess at what problems haven't been found
yet. All we can say decisively is what bugs have already been found:

.. On Windows UTF8 encoding isn't allowed

.. VACUUM does an unnecessarily large amount of I/O

.. Toaster could cause failures on machines with strict alignment

.. Resources limits in Windows limit the number of clients

.. pg_tablespace_size() on pg_global fails even for superuser

.. ABI break with old libpq for applications which depend on encoding IDs
(such as initdb -- you can't run initdb with an 8.2 libpq against an 8.3 server)

.. invalid tsvector input could cause crashes

.. ALTER COLUMN TYPE would reset the index's options, possibly moving it to the
default tablespace or worse

Also:

.. A new data type, txid, was added

.. Several new contrib modules were added to aid tsearch migration

.. Some tsearch functions were removed or modified

.. tsearch word categories were redefined and renamed

.. Make plan invalidation work for dropped sequences (etc)

.. Be careful to get share lock on each page before computing its free space.

.. This avoids useless checkpoint activity if XLogWrite is executed when we
have a very stale local copy of RedoRecPtr.

.. Teach planagg.c that partial indexes specifying WHERE foo IS NOT NULL can be
used to perform MIN(foo) or MAX(foo)

.. Remove an Assert that's been obsoleted by recent changes in the parsetree
representation of DECLARE CURSOR. Report and fix by Heikki.

.. Ensure that the result of evaluating a function during constant-expression
simplification gets detoasted before it is incorporated into a Const node.

.. Make dumpcolors() have tolerable performance when using 32-bit chr, as we do

.. Make "role is not permitted to log in" errors not be hidden

.. Remove quotes around locale names in some places for consistency.

.. Add missing entry for PG_WIN1250 encoding, per gripe from Pavel Stehule.
Also enable translation of PG_WIN874

--
Gregory Stark
EnterpriseDB http://www.enterprisedb.com

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