write into a high-numbered segment of a relation that was later deleted.
We need to temporarily recreate missing segment files, instead of
failing.

during replay of CREATE DATABASE as well as the first time around.
Else it's possible that the copy operation will copy obsolete blocks.
We are still a long way from guaranteeing anything about using a
recently-written database as a CREATE template, but this seems needed
to ensure the existing behavior holds up during replay.

Dave Page

be written with quotes.  Minor copy-editing too.

Fix TablespaceCreateDbspace() to be able to create a dummy directory
in place of a dropped tablespace's symlink.  This eliminates the open
problem of a PANIC during WAL replay when a replayed action attempts
to touch a file in a since-deleted tablespace.  It also makes for a
significant improvement in the usability of PITR replay.

a more tolerable limit on the number of subtransactions or deleted files
in COMMIT and ABORT records.  Buy back the extra space by eliminating the
xl_xact_prev field, which isn't being used for anything and is rather
unlikely ever to be used for anything.
This does not force initdb, but you do need to do pg_resetxlog if you
want to upgrade an existing 8.0 installation without initdb.

Win32 WaitForMultipleObjects:

	ret = WaitForMultipleObjects(win32_numChildren, win32_childHNDArray,
	FALSE, 0);

Problem is 'win32_numChildren' could be more then 64 ( function supports
), problem basically arise ( kills postgres ) when you create more then
64 connections and terminate some of them sill leaving more then 64.

Claudio Natoli

James William Pye

>>GetLastError will
>>> give much more details than errno.
>>
>>How much more, really?  That mapping table gave me the impression that
>>the win32 error codes aren't all that much more detailed than errno...
>
>The mapping table is not complete. My winerror.h from the SDK
>lists 2209
>error codes, whereas errno.h lists 42...
>
>I still don't think we'll get that much more stuff. Right now,
>the Win32
>code paths that actually use the more advanced functions already write
>out the error number in case something happens. We can keep doing that
>for the other paths (ereport the error *number* when the mapping does
>not have a match). The map to errno will catch almost all cases, I
>think. And in the corner cases we can do with just the number, and use
>"net helpmsg" to get the actual message when checking...

Here's an attempt on this. new file goes in backend/port/win32.

Magnus Hagander

some possible causes of the stale postmaster.pid problem that some users
have reported.

- The service did not properly report that it accepts
SERVICE_CONTROL_SHUTDOWN events, thus it's possible the SCM simply
killed the postmaster on shutdown.

- 'WaitHints' are now given to the SCM to prevent it timing out if
pg_ctl doesn't respond to a control event quickly enough.

- During shutdown, the service checkpoint counter is incremented every
five seconds for up to a minute to prevent the SCM timing out and
assuming the service is not responding.

Dave Page

> > The patch adds missing the "libpgport.a" file to the installation under
> > "install-all-headers". It is needed by some contribs. I install the
> > library in "pkglibdir", but I was wondering whether it should be "libdir"?

Please find attached a small patch against current CVS head that fixes
pgport library installation so that it goes to libdir instead of
pkglibdir. It works for me.

Fabien Coelho

Philip Warner

Gavin Sherry

pg_clog, there's no reason to do abort marking of subtransactions in a
nonintuitive order.

TransactionIdDidCommit.

available elsewhere (including a descendant project on gborg).

so that we close and flush the doomed relation's relcache entry before
we start to delete the underlying catalog rows, rather than afterwards.
For awhile yesterday I thought that an unexpected relcache entry rebuild
partway through this sequence might explain the infrequent parallel
regression failures we were chasing.  It doesn't, mainly because there's
no CommandCounterIncrement in the sequence and so the deletions aren't
"really" done yet.  But it sure seems like trouble waiting to happen.

> > "pg_ctl register -w ...." the "-w" parameter was not put in
> the registry "ImagePath"
> > value for the Postgres service. (I added it manually to test.) So I
> > suspect that "pg_ctl register" will need to be enhanced to add the
> > "-w" parameter to the registry settings.

Dave Page

Magnus Hagander

relcache entries.  Also, change TransactionIdIsCurrentTransactionId()
so that if consulted during transaction abort, it will not say that
the aborted xact is still current.  (It would be better to ensure that
it's never called at all during abort, but I'm not sure we can easily
guarantee that.)  In combination, these fix a crash we have seen
occasionally during parallel regression tests of 8.0.

from being accepted after the outer right brace. Per report from
Markus Bertheau.

Also add regression test cases for this change, and for previous
recent array literal parser changes.

module isn't fully initialized yet.

if the target PID is a PG postmaster or backend --- for our purposes that
is actually better than the Unix behavior.  Per Dave Page and Andrew Dunstan.

PROCLOCK structs in shared memory now have only a bitmask for held
locks, rather than counts (making them 40 bytes smaller, which is a
good thing).  Multiple locks within a transaction are counted in the
local hash table instead, and we have provision for tracking which
ResourceOwner each count belongs to.  Solves recently reported problem
with memory leakage within long transactions.

< 	This would require some background daemon to maintain clustering
> 	This might require some background daemon to maintain clustering
397,398c397,398
< 	paritally filled for easier reorganization.  It also might require
< 	creating a merged heap/index data file so an index lookup would
> 	paritally filled for easier reorganization.  Another idea would
>         be to create a merged heap/index data file so an index lookup would

< 	This would require some background daemon to restore clustering
> 	This would require some background daemon to maintain clustering
397c397,399
< 	paritally filled for easier reorganization.
> 	paritally filled for easier reorganization.  It also might require
> 	creating a merged heap/index data file so an index lookup would
> 	automatically access the heap data too.

changes.