Add an ABORT keyword argument to PG-DISCONNECT (from Robert J.
Macomber <pgsql@rojoma.com>), as per CL:CLOSE.

  "I've run into a problem with pg-disconnect if something abnormal
   happens to the database connection -- if the database goes away for a
   restart while pg has a connection open, for example.  When this
   happens, pg-disconnect fails, and the socket file descriptor is left
   open (presumably for a finalizer to clean up), also raising a new
   error from the unwind-protect in with-pg-connection.  To guard against
   the possibility, I've added an :abort parameter to pg-disconnect, like
   cl:close has, and made with-pg-connection call it with :abort t if the
   body exits abnormally, in the same way that with-open-file operates.
   When :abort is true, the modified pg-disconnect closes the database
   connection ungracefully, including making the close call abort
   (otherwise, sbcl at keast tries to flush the stream, raising another
   error if the database isn't there anymore)."

darcs-hash:aad628cf0093846dca55fe4f8fa47b0db89249c2

- on CL implementations that support Unix sockets, the HOST argument
   to PG-CONNECT may designate the directory containing the local
   PostgreSQL unix socket (often "/var/run/postgresql/"). The HOST
   argument is assumed to designate a local directory rather than a
   hostname when its first character is #\/. You may need to modify
   authentication options in the PostgreSQL configuration file
   pg_hba.conf to allow connections over a unix-domain socket where
   the databse username is not equal to your ident tokens. This is an
   incompatible change to previous support for unix-domain sockets
   with CMUCL (previously a HOST of NIL told pg-dot-lisp to connect
   to a unix-domain socket whose name was hardwired into the library).
   This support currently exists for SBCL, CMUCL and OpenMCL.

darcs-hash:1079feb38d33f9b9d1f14fbcd0fef67dc7954aa3

Fix to the prepared statement example.

darcs-hash:f0691a9d2135a5a23a1ce3cb59d79a959c62b183

Improved documentation and a basic example for the use of execution
plans (prepared statements).

darcs-hash:b8c6f094ccb06bdcb7544342e82bc8d75c1f2624

Fixes to client-encoding support, based on a bug report from Johan Ur
Riise <johan@riise-data.no>. Not tested very heavily (but the tests
work in UTF-8 mode with unicode-enabled SBCL and CLISP).

darcs-hash:ad4154ce4c456179f353b980697e6d052f5e631b

Fix to timezone handling when parsing timestamps (timezone offset can
be negative).

From Katsuya Tomioka.

darcs-hash:656ed17ea7f0d6b56554558f2a5e7f67e60d032d

Note that the current code has been tested against PostgreSQL 8.0
(with both v2 and v3 protocol versions).

darcs-hash:199fc743bbc5c8eff88ba89dc683a6af693af98b

- add md5 authentication (thanks to Brian Mastenbrook). Uses Pierre Mai's
    portable md5.lisp library, that has been added to the project (with extra
    EVAL-WHENness to please OpenMCL and ACL).

    Tested with CMUCL, SBCL, OpenMCL, CLISP, ACL 6.1. ABCL does not compile
    md5.lisp, probably for more EVAL-WHEN reasons. Only tested with PostgreSQL
    version 7.4.

darcs-hash:76581bd5b619a8e593164743a8ff044357c680cb

More factorization of lowlevel functions between v2 and v3 protocols.

darcs-hash:aef9e7feac79e0d6b749d3ff999a62e1f50c4d69

initial import

darcs-hash:3eba5477bf5e3b095b88e97e474746b61304a343