From: whalesuit at gmail.com (Eric E)
Date: Fri, 2 Jun 2006 15:31:50 -0400
Subject: [Pljava-dev] Using the $DATADIR variable within postgresql.conf
Message-ID: <7426fe270606021231q11b297b4m76258a1ae53cb49a@mail.gmail.com>

Hi all,
  I'm trying to set up PL/JAVA in a flexible way based on the mount point of
my data for postgres.  I'd like to have to dynamic_library_path point to
$DATADIR/pljava, where $DATADIR the data directory of postgres (the
directory containing postgresql.conf and pg_hba.conf).  That way I can just
mount the postgres data onto a mount point, point the postmaster to the
right place, and have PL/JAVA ready to roll with the database.  This type of
flexibility becomes particularly relevant with Xen images...

The problem is that I don't know how to reference the $DATADIR environment
variable from with postgresql.conf.  I've tried $DATADIR, $datadir,
$data_directory (which apparently must be hard-set at the top of
postgresql.conf ), ${DATADIR}, {$DATADIR}, etc.  I always get the same
message in the deployer:
ERROR: invalid macro name in dynamic library path: $libdir;{$DATADIR}/pljava

Does anyone have any ideas how to do this?

Thanks,

Eric
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