<Chapter Id="install">
<Title>Installation</Title>

<Abstract>
<Para>
Complete installation instructions for <ProductName>Postgres</ProductName> v6.3.
</Para>
</Abstract>

<Para>
  This procedure is
This is based on the installation instructions 
for <ProductName>Postgres</ProductName> v6.3
found in <FileName>&dollar;PGROOT/INSTALL</FileName>.
  Up to date information on <ProductName>Postgres</ProductName> may be found at
<ULink url="http://www.postgresql.org">www.postgresql.org</ULink>.
</Para>

<Para>
The installation notes below assume the following (except where noted):
<ItemizedList Mark="bullet" Spacing="compact">
<ListItem>
<Para>
Commands are Unix-compatible. See note below.
</Para>
</ListItem>
<ListItem>
<Para>
Defaults are used except where noted.
</Para>
</ListItem>
<ListItem>
<Para>
User postgres is the <ProductName>Postgres</ProductName> superuser.
</Para>
</ListItem>
<ListItem>
<Para>
The source path is /usr/src/pgsql (other paths are possible).
</Para>
</ListItem>
<ListItem>
<Para>
The runtime path is /usr/local/pgsql (other paths are possible).
</Para>
</ListItem>
</ItemizedList>

<Para>
Commands were tested on RedHat Linux version 4.2 using the tcsh shell.
Except where noted, they will probably work on most systems. Commands
like ps and tar vary wildly on what options you should use on each
platform. <Emphasis>Use common sense</Emphasis> before typing in these commands.
</Para>

<Para>
Our Makefiles require GNU <Application>make</Application> (called <Quote>gmake</Quote> in this document) and
also assume that <Application>install</Application> accepts BSD options. The INSTALL
variable in the Makefiles is set to the BSD-compatible version of
<Application>install</Application>. On some systems, you will have to find a BSD-compatible
<Application>install</Application> (eg. <Application>bsdinst</Application>, which comes with the MIT X Window System
distribution).
</Para>

<Sect1>
<Title>Requirements to Run <ProductName>Postgres</ProductName></Title>

<Para>
Information on supported platforms is another chapter. In general, most Unix-compatible
platforms with modern libraries should be able to run <ProductName>Postgres</ProductName>.

<Para>
You should have at least 8 MB of memory and at least 45 MB of disk space
to hold the source, binaries, and user databases.  After installation
you may reduce this to about 3 Mbytes plus space for user databases.
</Para>

</Sect1>

<Sect1>
<Title>Installation Procedure</Title>

<Para>
<Procedure>
<Title><ProductName>Postgres</ProductName> Installation</Title>

<Para>
For a fresh install or upgrading from previous releases of
<ProductName>Postgres</ProductName>:
</Para>

<Step Performance="required">
<Para>
Read any last minute information and platform specific porting
     notes.  There are some platform specific notes at the end of this
     file for Ultrix4.x, Linux, BSD/OS and NeXT.  There are other
     files in directory <FileName>/usr/src/pgsql/doc</FileName>, including files FAQ-Irix
     and FAQ-Linux.  Also look in directory
<ULink url="ftp://ftp.postgresql.org/pub">ftp://ftp.postgresql.org/pub</ULink>.
     If there is a file called INSTALL in this directory then this
     file will contain the latest installation information.
</Para>

<Para>
     Please note that a "tested" platform in the list given earlier
     simply means that someone went to the effort at some point of making
     sure that a <ProductName>Postgres</ProductName> distribution would compile and run on this
     platform without modifying the code.  Since the current developers
     will not have access to all of these platforms, some of them may not
     compile cleanly and pass the regression tests in the current
     release due to minor problems.  Any such known problems and their
     solutions will be posted in 
<ULink url="ftp://ftp.postgresql.org/pub/INSTALL">ftp://ftp.postgresql.org/pub/INSTALL</ULink>.
</Para>
</Step>

<Step Performance="optional">
<Para>
Create account postgres if it does not already exist.
</Para>
</Step>

<Step Performance="required">
<Para>
Log into account postgres.
</Para>

<SubSteps>
<Step Performance="required">
<Para>
Check that you have sufficient disk space.  You will need about
      17 Mbytes for /usr/src/pgsql, about 2 Mbytes for /usr/local/pgsql
      (excluding your database) and 1 Mbyte for an empty database.
      The database will temporarily grow to about 20 Mbytes during the
      regression tests.  You will also need about 3 Mbytes for the
      distribution tar file.
</Para>

<Para>
      We therefore recommend that during installation and testing you
      have well over 20 Mbytes free under /usr/local and another 25 Mbytes
      free on the disk partition containing your database.  Once you
      delete the source files, tar file and regression database, you
      will need 2 Mbytes for /usr/local/pgsql, 1 Mbyte for the empty
      database, plus about five times the space you would require to
      store your database data in a flat file.
</Para>

<Para>
      To check for disk space, use <Command>df -k</Command>.
</Para>
</Step>
</SubSteps>
</Step>

<Step Performance="required">
<Para>
Ftp file ftp://ftp.postgresql.org/pub/postgresql-v6.3.tar.gz from the
     Internet.  Store it in your home directory.
</Para>
</Step>

<Step Performance="required">
<Para>
Some platforms use flex.  If your system uses flex then make sure
     you have a good version.  To check, type <Command>flex --version</Command>.
</Para>

<Para>
     If the flex command is not found then you probably do not need it.
     If the version is 2.5.2 or 2.5.4 or greater then you are okay.  If it
     is 2.5.3 or before 2.5.2 then you will have to upgrade flex.  You may
     get it at ftp://prep.ai.mit.edu/pub/gnu/flex-2.5.4.tar.gz.
</Para>

<Para>
     If you need flex and don't have it or have the wrong version, then
     you will be told so when you attempt to compile the program.  Feel
     free to skip this step if you aren't sure you need it.  If you do
     need it then you will be told to install/upgrade flex when you try to
     compile.
</Para>

<Para>
     To install it, type the following:
<ProgramListing>
    cd
    gunzip -c flex-2.5.4.tar.gz | tar xvf -
    cd flex-2.5.4
    configure --prefix=/usr
    make
    make check
    # You must be root when typing the next line.
    make install
    cd
    rm -rf flex-2.5.4
</ProgramListing>
</Para>

<Para>
     This will update files /usr/man/man1/flex.1, /usr/bin/flex,
     /usr/lib/libfl.a, /usr/include/FlexLexer.h and will add link
     /usr/bin/flex++ which points to flex.
</Para>
</Step>

<Step Performance="required">
<Para>
If you are upgrading an existing system then back up your database.
     For alpha- and beta-level releases, the database format is liable
     to change often every few weeks with no notice besides a quick comment
     in the HACKERS mailing list.  Full releases always require a dump/reload
     from previous releases.  It is therefore a bad idea to skip this
     step.  Also, do not use the pg_dumpall script from v6.0 or everything
     will be owned by the <ProductName>Postgres</ProductName> super user.
  Type (with the gunzip line
     and the following line typed as one line):
<ProgramListing>
    cd
    gunzip -c postgresql-v6.3.tar.gz |
    tar xvf - src/bin/pg_dump/pg_dumpall
    chmod a+x src/bin/pg_dump/pg_dumpall
    src/bin/pg_dump/pg_dumpall > db.out
    rm -rf src
</ProgramListing>
</Para>

<Para>
     If you wish to preserve object id's (oids), then use the -o
     option when running pg_dumpall.  However, unless you have a
     special reason for doing this, don't do it.
</Para>

<Para>
     If the pg_dumpall command seems to take a long time and you think
     it might have died, then, from another terminal, use "ls -l db.out"
     several times to see if the size of the file is growing.
</Para>

<Para>
     Please note that if you are upgrading from a version prior to
     <ProductName>Postgres95</ProductName> v1.09 then you must back up your database, install
     <ProductName>Postgres95</ProductName> v1.09, restore your database, then back it up again.
     You should also read files /usr/src/pgsql/migration/*.
</Para>

<Para>
     You must make sure that your database is not updated in the middle of
     your backup.  If necessary, bring down postmaster, edit the permissions
     in file /usr/local/pgsql/data/pg_hba.conf to allow only you on, then
     bring postmaster back up.
</Para>
</Step>

<Step Performance="required">
<Para>
If you are upgrading an existing system then kill the postmaster.  Type
<ProgramListing>
    ps -ax | grep postmaster
</ProgramListing>
     This should list the process numbers for a number of processes.  Type
     the following line, with "???" replaced by the process id for process
     "postmaster".  (Do not use the id for process "grep postmaster".)  Type
       kill ???
     with "???" modified as indicated.
</Para>
</Step>

<Step Performance="required">
<Para>
If you are upgrading an existing system then move the old directories
     out of the way.  If you are short of disk space then you may have to
     back up and delete the directories instead.  If you do this, save the
     old database in the /usr/local/pgsql/data directory tree.  At a
     minimum, save file /usr/local/pgsql/data/pg_hba.conf.
</Para>

<Para>
     Type the following:
        su
        cd /usr/src
        mv pgsql pgsql_6_0
        cd /usr/local
        mv pgsql pgsql_6_0
        exit
</Para>

<Para>
     If you are not using /usr/local/pgsql/data as your data directory
     (check to see if environment variable PGDATA is set to something
     else) then you will also want to move this directory in the same
     manner.
</Para>
</Step>

<Step Performance="required">
<Para>
  Make new source and install directories.  The actual paths can be
     different for your installation; be consistant throughout this procedure.
     Type
<ProgramListing>
    su
    cd /usr/src
    mkdir pgsql
    chown postgres:postgres pgsql
    cd /usr/local
    mkdir pgsql
    chown postgres:postgres pgsql
    exit
</ProgramListing>
</Para>
</Step>

<Step Performance="required">
<Para>
 Unzip and untar the new source file.  Type
<ProgramListing>
    cd /usr/src/pgsql
    gunzip -c ~/postgresql-v6.3.tar.gz | tar xvf -
</ProgramListing>
</Para>
</Step>

<Step Performance="required">
<Para>
 Configure the source code for your system.  It is this step at which
     you can specify your actual source path and installation paths for
     the build process (see the --prefix option below).  Type
<ProgramListing>
    cd /usr/src/pgsql/src
    ./configure
</ProgramListing>
</Para>

<Para>
     The configure program will list the template files available and
     ask you to choose one.  A lot of times, an appropriate template
     file is chosen for you, and you can just press Enter to accept the
     default.  If the default is not appropriate, then type in the
     appropriate template file and press Enter.  (If you do this, then
     send email to scrappy@hub.org stating the output of the program
     './config.guess' and what the template file should be.)
</Para>

<Para>
     Once you have entered the template file, you will be asked a
     number of questions about your particular configuration.  These
     can be skipped by adding parameters to the configure command above.
     The following parameters can be tagged onto the end of the configure
     command:

<ProgramListing>
       --prefix=BASEDIR   Selects a different base directory for the
                          installation of the <ProductName>Postgres</ProductName> configuration.
                          The default is /usr/local/pgsql.

       --enable-hba       Enables Host Based Authentication (DEFAULT)

       --disable-hba      Disables Host Based Authentication

       --enable-locale    Enables USE_LOCALE

       --disable-locale   Disables USE_LOCALE (DEFAULT)

       --enable-cassert   Enables ASSERT_CHECKING

       --disable-cassert  Disables ASSERT_CHECKING (DEFAULT)

       --with-template=TEMPLATE
                          Use template file TEMPLATE - the template
                          files are assumed to be in the directory
                          src/template, so look there for proper values.
                          (If the configure script cannot find the
                          specified template file, it will ask you for
                          one).

       --with-pgport=PORT Sets the port that the postmaster process
                          listens for incoming connections on.  The
                          default for this is port 5432.
</ProgramListing>
</Para>

<Para>
     As an example, here is the configure script I use on a Sparc
     Solaris 2.5 system with /opt/postgres being the install base.

<ProgramListing>
    ./configure --prefix=/opt/postgres \
	--with-template=sparc_solaris-gcc --with-pgport=5432 \
	--enable-hba --disable-locale
</ProgramListing>

     Of course, in a real shell, you would type these three lines all
     on the same line.
</Para>
</Step>

<Step Performance="required">
<Para>
Compile the program.  Type
<ProgramListing>
    cd /usr/src/pgsql/src
    gmake all >& make.log &
    tail -f make.log
</ProgramListing>
</Para>

<Para>
     The last line displayed will hopefully be "All of PostgreSQL is
     successfully made. Ready to install."  At this point, or earlier
     if you wish, type control-C to get out of tail.  (If you have
     problems later on you may wish to examine file make.log for
     warning and error messages.)
</Para>

<Para>
     If your computer does not have gmake (GNU make) then try running
     make instead throughout the rest of these notes.
</Para>

<Para>
     Please note that you will probably find a number of warning
     messages in make.log.  Unless you have problems later on, these
     messages may be safely ignored.
</Para>

<Para>
     If the compiler fails with an error stating that the flex command
     cannot be found then install flex as described earlier.  Next,
     change directory back to this directory, type "make clean", then
     recompile again.
</Para>

<Para>
     Compiler options, such as optimization and debugging, may 
     be specified on the command line using the COPT variable.
     For example, typing
<ProgramListing>
     gmake COPT="-g" all >& make.log &
</ProgramListing>
     would invoke your compiler's -g option in all steps of the
     build.  See src/Makefile.global.in for further details.
</Para>
</Step>

<Step Performance="required">
<Para>
 Install the program.  Type
<ProgramListing>
    cd /usr/src/pgsql/src
    gmake install >& make.install.log &
    tail -f make.install.log
</ProgramListing>
</Para>

<Para>
     The last line displayed will be "gmake[1]: Leaving directory
     `/usr/src/pgsql/src/man'".  At this point, or earlier if you wish,
     type control-C to get out of tail.
</Para>
</Step>

<Step Performance="required">
<Para>
 14) If necessary, tell UNIX how to find your shared libraries.  You can
     do ONE of the following, preferably the first:
<SubSteps>
<Step Performance="optional">
<Para>
       As root, edit file /etc/ld.so.conf.  Add line
             <FileName>/usr/local/pgsql/lib</FileName>
          to the file.  Then run command <Command>/sbin/ldconfig</Command>.
</Para>
</Step>
<Step Performance="optional">
<Para>
       In a bash shell, type
<ProgramListing>
    export LD_LIBRARY_PATH=/usr/local/pgsql/lib
</ProgramListing>
</Para>
</Step>
<Step Performance="optional">
<Para>
       In a csh shell, type
<ProgramListing>
    setenv LD_LIBRARY_PATH /usr/local/pgsql/lib
</ProgramListing>
</Step>
</SubSteps>

<Para>
     Please note that the above commands may vary wildly for different
     operating systems.  Check the platform specific notes, such as
     those for Ultrix4.x or and for non-ELF Linux.
</Para>

<Para>
     If, when you create the database, you get the message "pg_id: can't
     load library 'libpq.so'" then the above step was necessary.  Simply
     do this step, then try to create the database again.
</Para>
</Step>

<Step Performance="required">
<Para>
 If it has not already been done, then prepare account postgres
     for using <ProductName>Postgres</ProductName>.  Any account that will use <ProductName>Postgres</ProductName> must
     be similarily prepared.  (The following instructions are for a
     bash shell.  Adapt accordingly for other shells.)
</Para>

<Para>
     Add the following lines to your login shell, ~/.bash_profile:
<ProgramListing>
    PATH=$PATH:/usr/local/pgsql/bin
    MANPATH=$MANPATH:/usr/local/pgsql/man
    PGLIB=/usr/local/pgsql/lib
    PGDATA=/usr/local/pgsql/data
    export PATH MANPATH PGLIB PGDATA
</ProgramListing>
</Para>

<Para>
     Make sure that you have defined these variables before continuing
     with the remaining steps.  The easiest way to do this is to type:
<ProgramListing>
    source ~/.bash_profile
</ProgramListing>
</Para>
</Step>

<Step Performance="required">
<Para>
 Create the database.  <Emphasis>Do not do the following as root!</Emphasis>
 This would be a major security hole.  Type
<ProgramListing>
    initdb
</ProgramListing>
</Para>
</Step>

<Step Performance="required">
<Para>
 Set up permissions to access the database system.  Do this by editing
     file /usr/local/pgsql/data/pg_hba.conf.  The instructions are
     included in the file.  (If your database is not located in the
     default location, i.e. if PGDATA is set to point elsewhere, then the
     location of this file will change accordingly.)  This file should be
     made read only again once you are finsihed.

     If you are upgrading from v6.0 you can copy file pg_hba.conf from
     your old database on top of the one in your new database, rather than
     redoing this from scratch.
</Para>
</Step>

<Step Performance="required">
<Para>
You may wish to skip the regression tests.
     However, we think skipping the tests is a BAD idea!
</Para>

<Para>
     The file /usr/src/pgsql/src/test/regress/README has detailed
     instructions for running and interpreting the regression tests.
     A short version follows here:
</Para>

<Para>
     Start the postmaster daemon running in the background by typing
<ProgramListing>
    cd
    nohup postmaster > regress.log 2>&1 &
</ProgramListing>
</Para>

<Para>
     Run postmaster from your <ProductName>Postgres</ProductName> super user account (typically
     account postgres).  DO NOT RUN POSTMASTER FROM THE ROOT ACCOUNT.
</Para>
</Step>

<Step Performance="required">
<Para>

 Run the regression tests.  Type

<ProgramListing>
    cd
    cd /usr/src/pgsql/src/test/regress
    gmake clean
    gmake all runtest
</ProgramListing>
</Para>

<Para>

     You do not need to type "gmake clean" if this is the first time you
     are running the tests.
</Para>

<Para>

     You should get on the screen (and also written to file ./regress.out)
     a series of statements stating which tests passed and which tests
     failed.  Please note that it can be normal for some of the tests to
     "fail".  For the failed tests, use diff to compare the files in
     directories ./results and ./expected.  If float8 failed, type
     something like:
<ProgramListing>
    cd /usr/src/pgsql/src/test/regress
    diff -w expected/float8.out results
</ProgramListing>
</Para>

<Para>

    "Failed" tests may have failed due to slightly different error messages,
     output formatting, failure to set the timezone correctly for your
     platform, etc.  "Failures" of this type do not indicate a problem with
     <ProductName>Postgres</ProductName>.
</Para>

<Para>

     For a i686/Linux-ELF platform, no tests failed since this is the
     v6.3 regression testing reference platform.
</Para>

<Para>
     For the SPARC/Linux-ELF platform, using the 970525 beta version of
     <ProductName>Postgres</ProductName> v6.2 the following tests "failed":
     float8 and geometry "failed" due to minor precision differences in
     floating point numbers.  select_views produces massively different output,
     but the differences are due to minor floating point differences.
</Para>

<Para>
     Conclusion?  If you do see failures, try to understand the nature of
     the differences and then decide if those differences will affect your
     intended use of <ProductName>Postgres</ProductName>.  However, keep in mind that this is likely
     to be the most solid release of <ProductName>Postgres</ProductName> to date, incorporating many
     bug fixes from v6.2.1, and that previous versions of <ProductName>Postgres</ProductName> have been
     in use successfully for some time now.
</Para>

<Para>
     After running the tests, type
<ProgramListing>
    destroydb regression
    cd /usr/src/pgsql/src/test/regress
    gmake clean
</ProgramListing>
</Para>
</Step>

<Step Performance="required">
<Para>

 Stop the postmaster as described in step 7.  Then restore the
     timezone to it's normal setting.  If you changed the timezone by
     modifying environment variable TZ then one way to do this is to
     log out of, then back into, account postgres.
</Para>
</Step>

<Step Performance="required">
<Para>

 Start the postmaster daemon running.  Type
<ProgramListing>
    cd
    nohup postmaster > server.log 2>&1 &
</ProgramListing>
     Run postmaster from your <ProductName>Postgres</ProductName> super user account (typically
     account postgres).  DO NOT RUN POSTMASTER FROM THE ROOT ACCOUNT.
</Para>
</Step>

<Step Performance="required">
<Para>
 If you haven't already done so, this would be a good time to modify
     your computer so that it will automatically start postmaster whenever
     you boot your computer.

     Here are some suggestions on how to do this, contributed by various
     users.

     Whatever you do, postmaster must be run by user postgres AND NOT BY
     ROOT.  This is why all of the examples below start by switching user
     (su) to postgres.  These commands also take into account the fact
     that environment variables like PATH and PGDATA may not be set properly.

     The examples are as follows.  Use them with extreme caution.

       a) Edit file rc.local on NetBSD or file rc2.d on SPARC Solaris
          2.5.1 to contain the following single line:
             su postgres -c "/usr/local/pgsql/bin/postmaster -S -D
                     /usr/local/pgsql/data"

       b) In FreeBSD 2.2-RELEASE edit /usr/local/etc/rc.d/pgsql.sh to
          contain the following lines and make it chmod 755 and chown
          root:bin.
             #!/bin/sh
             [ -x /usr/local/pgsql/bin/postmaster ] && {
               su -l pgsql -c 'exec /usr/local/pgsql/bin/postmaster
                       -D/usr/local/pgsql/data
                       -S -o -F > /usr/local/pgsql/errlog' &
               echo -n ' pgsql'
             }
          You may put the line breaks as shown above.  The shell is smart
          enough to keep parsing beyond end-of-line if there is an
          expression unfinished.  The exec saves one layer of shell under
          the postmaster process so the parent is init.  Note:  Unlike most
          other examples, this one has been tested.

       c) In RedHat v4.0 Linux edit file /etc/inittab to contain the
          following single line:
             pg:2345:respawn:/bin/su - postgres -c
                     "/usr/local/pgsql/bin/postmaster -D/usr/local/pgsql/data
                     >> /usr/local/pgsql/server.log 2>&1" /dev/null
          (The author of this example says this example will revive the
          postmaster if it dies, but he doesn't know if there are other side
          effects.)

       d) The contrib/linux area of the <ProductName>Postgres</ProductName> distribution has an example
          init.d script compatible with and tested using recent RedHat packages.
</Para>
</Step>

<Step Performance="required">
<Para>
 If you haven't already done so, this would be a good time to modify
      your computer to do regular maintainence.  The following should be
      done at regular intervals:

        a) Run the SQL command vacuum.  This will clean up your database.
        b) Back up your system.  (You should probably keep the last few
           backups on hand.)  Ideally, no one else should be using the
           system at the time.

      Ideally, the above tasks should be done by a shell script that is
      run nightly or weekly by cron.  Look at the man page for crontab
      for a starting point on how to do this.  (If you do it, please
      e-mail us a copy of your shell script.  We would like to set up
      our own systems to do this too.)
</Para>
</Step>

<Step Performance="required">
<Para>
 If you are upgrading an existing system then install your old database.
     Type
<ProgramListing>
    cd
    psql -e template1 < db.out
</ProgramListing>

     If your pre-v6.2 database uses either path or polygon geometric data types,
     then you will need to upgrade any columns containing those types. To
     do so, type (from within psql)
<ProgramListing>
    update YourTable set PathCol = UpgradePath(PathCol);
    update YourTable set PolyCol = UpgradePoly(PolyCol);
    ...
    vacuum;
</ProgramListing>

     UpgradePath() checks to see that a path value is consistant with the
     old syntax, and will not update a column which fails that examination.
     UpgradePoly() cannot verify that a polygon is in fact from an old
     syntax, but RevertPoly() is provided to reverse the effects of a
     mis-applied upgrade.
</Para>
</Step>

<Step Performance="required">
<Para>
 If you are a new user, you may wish to play with <ProductName>Postgres</ProductName> as described
     below.
</Para>
</Step>

<Step Performance="required">
<Para>
 Clean up after yourself.  Type
<ProgramListing>
    rm -rf /usr/src/pgsql_6_0
    rm -rf /usr/local/pgsql_6_0
    # Also delete old database directory tree if it is not in
    #  /usr/local/pgsql_6_0/data
    rm ~/postgresql-v6.2.1.tar.gz
</ProgramListing>
</Para>
</Step>

<Step Performance="required">
<Para>
 You will probably want to print out the documentation.  Here is how
     you might do it if you have Ghostscript on your system and are
     writing to a laserjet printer.
        alias gshp='gs -sDEVICE=laserjet -r300 -dNOPAUSE'
        export GS_LIB=/usr/share/ghostscript:/usr/share/ghostscript/fonts
        # Print out the man pages.
        man -a -t /usr/local/pgsql/man/*/* > manpage.ps
        gshp -sOUTPUTFILE=manpage.hp manpage.ps
        rm manpage.ps
        lpr -l -s -r manpage.hp
        # Print out the Postgres95 User Manual, version 1.0,
        #  Sept. 5, 1996.
        cd /usr/src/pgsql/doc
        gshp -sOUTPUTFILE=userguide.hp userguide.ps
        lpr -l -s -r userguide.hp

     If you are a developer, you will probably want to also print out
     the Postgres Implemention Guide, version 1.0, October 1, 1995.
     This is a WWW document located at
     http://www.postgresql.org/docs/impguide.
</Para>
</Step>

<Step Performance="required">
<Para>
 The <ProductName>Postgres</ProductName> team wants to keep <ProductName>Postgres</ProductName> working on all of the
     supported platforms.  We therefore ask you to let us know if you did
     or did not get <ProductName>Postgres</ProductName> to work on you system.  Please send a
     mail message to pgsql-ports@postgresql.org telling us the following:
       - The version of <ProductName>Postgres</ProductName> (v6.2.1, 6.1.1, beta 970703, etc.).
       - Your operating system (i.e. RedHat v4.0 Linux v2.0.26).
       - Your hardware (SPARC, i486, etc.).
       - Did you compile, install and run the regression tests cleanly?
         If not, what source code did you change (i.e. patches you
         applied, changes you made, etc.), what tests failed, etc.
         It is normal to get many warning when you compile.  You do
         not need to report these.
</Para>
</Step>

<Step Performance="required">
<Para>
 Now create, access and manipulate databases as desired.  Write client
     programs to access the database server.  In other words, ENJOY!
</Para>
</Step>
</Procedure>

<Sect1>
<Title>Playing with <ProductName>Postgres</ProductName></Title>

<Para>
After <ProductName>Postgres</ProductName> is installed, a database system is created, a postmaster
daemon is running, and the regression tests have passed, you'll want to 
see <ProductName>Postgres</ProductName> do something.  That's easy.  Invoke the interactive interface
to <ProductName>Postgres</ProductName>, <Application>psql</Application>:

<ProgramListing>
    % psql template1
</ProgramListing>

(psql has to open a particular database, but at this point the only one
that exists is the template1 database, which always exists.  We will connect
to it only long enough to create another one and switch to it.)
</Para>

<Para>
The response from psql is:

<ProgramListing>
Welcome to the POSTGRESQL interactive sql monitor:
  Please read the file COPYRIGHT for copyright terms of POSTGRESQL

   type \? for help on slash commands
   type \q to quit
   type \g or terminate with semicolon to execute query
 You are currently connected to the database: template1

template1=>
</ProgramListing>
</Para>

<Para>
Create the database foo:

<ProgramListing>
template1=> create database foo;
CREATEDB
</ProgramListing>

(Get in the habit of including those SQL semicolons.  Psql won't execute
anything until it sees the semicolon or a "\g" and the semicolon is required
to delimit multiple statements.)
</Para>

<Para>
Now connect to the new database:

<ProgramListing>
template1=> \c foo
connecting to new database: foo
</ProgramListing>

("slash" commands aren't SQL, so no semicolon.  Use \? to see all the slash commands.)
</Para>

<Para>
And create a table:

<ProgramListing>
foo=> create table bar (i int4, c char(16));
CREATE
</ProgramListing>
</Para>

<Para>
Then inspect the new table:

<ProgramListing>
foo=> \d bar

Table    = bar
+----------------------------------+----------------------------------+-------+
|              Field               |              Type                | Length|
+----------------------------------+----------------------------------+-------+
| i                                | int4                             |     4 |
| c                                | (bp)char                         |    16 |
+----------------------------------+----------------------------------+-------+
</ProgramListing>
</Para>

<Para>
And so on.  You get the idea.
</Para>
</Sect1>

<Sect1>
<Title>The Next Step</Title>

<Para>
Questions? Bugs? Feedback?
First, read the files in directory /usr/src/pgsql/doc.  The FAQ in
this directory may be particularly useful.
</Para>

<Para>
If <ProductName>Postgres</ProductName> failed to compile on your computer then fill out the form
in file /usr/src/pgsql/doc/bug.template and mail it to the location
indicated at the top of the form.
</Para>

<Para>
Mail questions to
<ULink url="pgsql-questions@postgresql.org">pgsql-questions@postgresql.org</ULink>.
For more information on the various mailing lists, see 
<ULink url="http://www.postgresql.org">http://www.postgresql.org</ULink>
and look for the mailing lists.
</Para>
</Sect1>

<Sect1>
<Title>Porting Notes</Title>

<Note>
<Para>
For some ports, these notes may be out of date.
</Para>
</Note>

<Sect2>
<Title>Ultrix4.x</Title>

<Para>
        You need to install the libdl-1.1 package since Ultrix 4.x doesn't
        have a dynamic loader. It's available in
           s2k-ftp.CS.Berkeley.EDU:pub/personal/andrew/libdl-1.1.tar.Z
</Para>
</Sect2>

<Sect2>
<Title>Linux</Title>

<Sect3>
<Sect3Info>
<Author>
<FirstName>Thomas G.</FirstName>
<SurName>Lockhart</SurName>
</Author>
<Date>1998-02-19</Date>
</Sect3Info>
<Title>Linux ELF</Title>

<Para>
The regression test reference machine is
a linux-2.0.30/libc-5.3.12/RedHat-4.2 installation running on a dual processor i686.
The linux-elf port installs cleanly. See the Linux FAQ for more details.
</Para>
</Sect3>

<Sect3>
<Sect3Info>
<Date>1995-05-11</Date>
</Sect3Info>
<Title>Linux a.out</Title>

<Para>
        For non-ELF Linux, the dld library MUST be obtained and installed on
        the system. It enables dynamic link loading capability to the <ProductName>Postgres</ProductName>
        port. The dld library can be obtained from the sunsite linux
        distributions. The current name is dld-3.2.5.
<ULink url="sneaker@powergrid.electriciti.com">Jalon Q. Zimmerman</ULink>
</Para>
</Sect3>
</Sect2>

<Sect2>
<Title>BSD/OS</Title>

<Para>
        For BSD/OS 2.0 and 2.01, you will need to get the GNU dld library.
</Para>
</Sect2>

<Sect2>
<Title>NeXT</Title>

<Para>
        The NeXT port for v1.09 was supplied by 
<ULink url="mailto:tom@basil.icce.rug.nl">Tom R. Hageman</ULink>.
        It requires a SysV IPC emulation library and header files for
        shared libary and semaphore stuff.   Tom just happens to sell such
        a product so contact him for information.  He has also indicated that
        binary releases of <ProductName>Postgres</ProductName> for NEXTSTEP will be made available to
        the general public.  Contact Info@RnA.nl for information.

<Para>
We have no recent reports of successful NeXT installations (for v6.2.1). 
However, the client-side libraries should work even
if the backend is not supported.
</Para>
</Sect2>
</Sect1>

</Chapter>
