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			Plaintext
		
	
	
	
	
	
Installing PostgreSQL on Windows Using Cygwin FAQ
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=================================================
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$Date: 2007/10/09 01:28:24 $
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PostgreSQL requires the appropriate subset of Cygwin DLLs to be
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installed in order that it functions under Windows.
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This document assumes that you do not have Cygwin already installed
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on your system.  If that is not the case, then you will need to
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adjust these instructions accordingly.
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1.  Download and run the Cygwin installer.  Visit http://cygwin.com/ and
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    click on the "Install Cygwin now' link.  This will prompt you
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    to download a "setup.exe".  Save this file somewhere on your
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    system and then execute it.
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2.  Proceed through the Cygwin install wizard.  Choose 'Install from
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    Internet', specify a Local Package Directory and choose a mirror
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    site that's close to you.  Answer the other installer questions
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    appropriately for your configuration.
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    When you come to the point of choosing which packages to install,
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    expand the 'Database' section and click 'Skip' next to PostgreSQL
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    to change it to the latest version of PostgreSQL available for
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    Cygwin.
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3.  Once the download and install process is complete, open a Cygwin
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    shell and do the following for a basic installation:
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    3a.  Start cygserver for shared memory support.  To do this,
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         enter the command "/usr/sbin/cygserver &".  This program
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         needs to be running anytime you start the Postgres server
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         or initialize a database (initdb).
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    3b.  Use the initdb command to create a new database cluster.  An
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         example command would be:
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            initdb -D /usr/local/pgsql/data -W -E LATIN1
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         Which will create a cluster in the /usr/local/pgsql/data
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         directory, will prompt for a superuser password and will
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         set the default database encoding to LATIN1.
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    3c.  Start up the Postgres server.  Use a command similar to the
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         following:
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            postgres -D /usr/local/pgsql/data
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         This will start the server, and if successful you will
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         see some initial log entries, and an entry "LOG: database
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         system is ready".
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4.  You are now running a PostgreSQL server on your Windows machine.
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5.  It is possible to install cygserver and the Postgres server as
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    Windows NT services.  For information on how to do this, please
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    refer to the README document included with Cygwin PostgreSQL.  It
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    is installed in the /usr/share/doc/Cygwin directory.
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Building from source
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--------------------
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There are some points that are only relevant if you are building Cygwin
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PostgreSQL from source:
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1.  Set your path to use the Cygwin bin directory before the Windows
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    utilities.  This will help prevent problems with compilation.
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2.  Proceed according to the INSTALL file (i.e., ./configure; make; etc.)
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    noting the following Cygwin specific differences:
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        o The GNU make command is called "make" not "gmake".
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        o The adduser command is not supported -- use the appropriate
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          user management application on Windows NT, 2000, or XP.
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          Otherwise, skip this step.
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        o The su command is not supported -- use ssh to simulate su
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          on Windows NT, 2000, or XP. Otherwise, skip this step.
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    Alternatively, proceed according to the README file supplied with
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    the Cygwin PostgreSQL package.
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Known issues
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------------
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1.  Cygwin's AF_UNIX sockets are really implemented as AF_INET sockets
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    so they are inherently insecure.
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2.  "make check" can generate spurious regression test failures due to
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    overflowing the listen() backlog queue which causes connection
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    refused errors or hangs. You can limit the number of connections
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    using the MAX_CONNECTIONS option thus:
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       make MAX_CONNECTIONS=5 check
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    (On some systems you can have up to about 10 simultaneous connections).
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3.  The default cygserver configuration may need to be changed (e.g.,
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    increase SEMMNS) to prevent PostgreSQL from failing due to a lack of
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    system resources.
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Problem reports can be sent to pgsql-cygwin@postgresql.org.
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