handle multiple 'formats' for data I/O.  Restructure CommandDest and
DestReceiver stuff one more time (it's finally starting to look a bit
clean though).  Code now matches latest 3.0 protocol document as far
as message formats go --- but there is no support for binary I/O yet.

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.

machines without IPv6.  Or at least it works on HPUX 10.20 ...

users, by limiting the length of string we will accept for a password.
Patch by Serguei Mokhov, some editorializing by Tom Lane.

referring to "multibyte" where it really means character encoding.

This breaks support for 6.2 or older client libraries.

when to send what to which, prevent recursion by introducing new COMMERROR
elog level for client-communication problems, get rid of direct writes
to stderr in backend/libpq files, prevent non-error elogs from going to
client during the authentication cycle.

hot spots --- buys about 10% in Verner's INSERT example.

tests pass.

only possible failure is in pq_flush, which will log a (better!) report
anyway --- so pq_endmessage is just cluttering the log with a redundant
entry.  This matters when a client crashes partway through a large query,
since we will emit many broken-pipe reports before finishing the query
and exiting.

* the result is not recorded anywhere
* the result is not used anywhere
* the result is only used in some places, whereas others have been getting away with it
* the result is used improperly

Also make command line options handling a little better (e.g., --disable-locale,
while redundant, should really still *dis*able).

  * Portions Copyright (c) 1996-2000, PostgreSQL, Inc

to all files copyright Regents of Berkeley.  Man, that's a lot of files.

pg_dump and interfaces/odbc still need some work.)

cygwin doesn't have an endian.h, but defines BYTE_ORDER in sys/param.h

and pg_server_to_client.  Eliminate copy.c's restriction on the length
of a single attribute.

backend.  Still much left to do.

different from database's ...

but I think it's OK now...

can be generated in a buffer and then sent to the frontend in a single
libpq call.  This solves problems with NOTICE and ERROR messages generated
in the middle of a data message or COPY OUT operation.