Try to provide a more lucid discussion in 'Using Aggregate Functions'
tutorial section.

Note this forces initdb because of change of Aggref node in stored rules.

* Document/trigger/rule so changes to pg_shadow recreate pg_pwd

I did it with a trigger and it seems to work like a charm. The function
that already updates the file for create and alter user has been made a
built-in "SQL" function and a trigger is created at initdb time.

Comments around the pg_pwd updating function seem to be worried about
this
routine being called concurrently, but I really don't see a reason to
worry about this. Verify for yourself. I guess we never had a system
trigger before, so treat this with care, and feel free to adjust the
nomenclature as well.

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Peter Eisentraut                  Sernanders väg 10:115

at all, and because of shell quoting rules this can't be fixed, so I put
in error messages to that end.

Also, calling create or drop database in a transaction block is not so
good either, because the file system mysteriously refuses to roll back rm
calls on transaction aborts. :) So I put in checks to see if a transaction
is in progress and signal an error.

Also I put the whole call in a transaction of its own to be able to roll
back changes to pg_database in case the file system operations fail.

The alternative location issues I posted recently were untouched, awaiting
the outcome of that discussion. Other than that, this should be much more
fool-proof now.

The docs I cleaned up as well.

Peter Eisentraut                  Sernanders väg 10:115

* pg_dump should preserve primary key information

Also a couple of warnings removed.

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Peter Eisentraut                  Sernanders väg 10:115

time qualification of HeapTupleSatisfiesSnapshot()

Jan

yet, but at least we can give a better error message:
regression=> select count(distinct f1) from int4_tbl;
ERROR:  aggregate(DISTINCT ...) is not implemented yet
instead of 'parser: parse error at or near distinct'.

Also, minor tweakage of tab completion, and I hope the output is flushed
on time now.

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Peter Eisentraut                  Sernanders väg 10:115

typecasts, eg 'NULL::text'.  Later parts of the parser don't like this
yet, but I'll work on that next.

multisession test tool.

Jan

shows the specific ungrouped variable being complained of.  Perhaps this
will reduce user confusion...

I was able to crash postgres 6.5.3 when I did an 'alter user' command.
After I started a debugger I found the problem in the timezone handling
of
datetime (my Linux box lost its timezone information, that's how the
problem occurred).

Only 7 bytes are reserved for the timezone, without checking for
boundaries.

Attached is a patch that fixes this problem and emits a NOTICE if a
timezone is encountered that is longer than MAXTZLEN bytes, like this:

Jeroen van Vianen

Jan

against the sources from one hour ago and contain all the portable and
up
to date stuff.

A few other CVS "householding" things you might want to take care of:

* Remove the src/bin/cleardbdir directory

* Remove the file src/bin/psql/sql_help.h from the repository, as it is
a derived file and is build by the release_prep.

Peter Eisentraut

(which are palloc'd) instead of DLLists (which are malloc'd).  Not very
significant, since this routine seldom has anything useful to do, but
a leak is a leak...

Jan

Jan