was modified for IPv6.  Use a robust definition of struct sockaddr_storage,
do a proper configure test to see if ss_len exists, don't assume that
getnameinfo() will handle AF_UNIX sockets, don't trust getaddrinfo to
return the protocol we ask for, etc.  This incorporates several outstanding
patches from Kurt Roeckx, but I'm to blame for anything that doesn't
work ...

Along the way, fix some logic problems in pgstat_initstats, notably the
bogus assumption that malloc returns zeroed memory.

Kurt Roeckx
Andrew Dunstan

of order; the 'server log' output is actually client output in these
scenarios and we ought to treat elevels the same way as in the client
case.  This allows initdb to not send backend stderr to /dev/null anymore,
which makes it much more likely that people will notice problems during
initdb.

docs that CLIENT/LOG_MIN_MESSAGES now controls debug_* output location.
Doc changes included.

        Win32 port is now called 'win32' rather than 'win'
        add -lwsock32 on Win32
        make gethostname() be only used when kerberos4 is enabled
        use /port/getopt.c
        new /port/opendir.c routines
        disable GUC unix_socket_group on Win32
        convert some keywords.c symbols to KEYWORD_P to prevent conflict
        create new FCNTL_NONBLOCK macro to turn off socket blocking
        create new /include/port.h file that has /port prototypes, move
          out of c.h
        new /include/port/win32_include dir to hold missing include files
        work around ERROR being defined in Win32 includes

instead of calling it a 'server process'.

as speaking the one true 3.0 protocol.

Allow backends to attached to specified shared memory address.

fork/exec.

Dump/read non-default GUC values for use by exec'ed backend, for Win32.

I had inadvertently omitted it while rearranging things to support
length-counted incoming messages.  Also, change the parser's API back
to accepting a 'char *' query string instead of 'StringInfo', as the
latter wasn't buying us anything except overhead.  (I think when I put
it in I had some notion of making the parser API 8-bit-clean, but
seeing that flex depends on null-terminated input, that's not really
ever gonna happen.)

new stats collector oftener than once a minute.  Per gripe from Erik Walthinsen
4/25/03.

it, and map that to close() on Unix.

have length words.  COPY OUT reimplemented per new protocol: it doesn't
need \. anymore, thank goodness.  COPY BINARY to/from frontend works,
at least as far as the backend is concerned --- libpq's PQgetline API
is not up to snuff, and will have to be replaced with something that is
null-safe.  libpq uses message length words for performance improvement
(no cycles wasted rescanning long messages), but not yet for error
recovery.

have length counts, and COPY IN data is packetized into messages.

with variable-width fields.  No more truncation of long user names.
Also, libpq can now send its environment-variable-driven SET commands
as part of the startup packet, saving round trips to server.

parts.  Standardize spelling of comments in pg_config.h.

disk-full conditions instead of provoking a backend crash.  Per suggestion
from Frederic Surleau.

> weird behavior across fork boundaries; (b) the additional memory space
> that has to be duplicated into child processes will cost something per
> child launch, even if the child never uses it.  But these are only
> arguments that it might not *always* be a prudent thing to do, not that
> we shouldn't give the DBA the tool to do it if he wants.  So fire away.

Here is a patch for the above, including a documentation update. It
creates a new GUC variable "preload_libraries", that accepts a list in
the form:

   preload_libraries = '$libdir/mylib1:initfunc,$libdir/mylib2'

If ":initfunc" is omitted or not found, no initialization function is
executed, but the library is still preloaded. If "$libdir/mylib" isn't
found, the postmaster refuses to start.

In my testing with PL/R, it reduces the first call to a PL/R function
(after connecting) from almost 2 seconds, down to about 8 ms.

Joe Conway

Neil Conway

service it until after we execute SetThisStartUpID().  Else shutdown
process will write the wrong SUI into the shutdown checkpoint, which
seems likely to be trouble --- although I've not quite figured out
how significant it really is.

of the socket file and socket lock file; this should prevent both of them
from being removed by even the stupidest varieties of /tmp-cleaning
script.  Per suggestion from Giles Lean.

datetime token tables.  Even more embarrassing, the regression tests
revealed some of the problems --- but evidently the bogus output wasn't
questioned.  Add code to postmaster startup to directly check the tables
for correct ordering, in hopes of not being embarrassed like this again.

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

Nigel Kukard