When using a temp installation, unset PGUSER and other variables we

might have inherited from the environment that would possibly cause
psql to fail to connect to the temp installation properly.  Per trouble
report from Markus Bertheau 7/1/03.

src/test/regress/pg_regress.sh

 #! /bin/sh
-# $Header: /cvsroot/pgsql/src/test/regress/Attic/pg_regress.sh,v 1.33 2003/07/30 17:08:47 tgl Exp $
+# $Header: /cvsroot/pgsql/src/test/regress/Attic/pg_regress.sh,v 1.34 2003/07/31 19:20:41 tgl Exp $
 
 me=`basename $0`
 : ${TMPDIR=/tmp}
@@ -288,6 +288,10 @@ then
     PGPORT=65432
     export PGPORT
 
+    # Get rid of environment stuff that might cause psql to misbehave
+    # while contacting our temp installation
+    unset PGDATABASE PGUSER PGSERVICE PGSSLMODE PGREQUIRESSL PGCONNECT_TIMEOUT
+
     # ----------
     # Set up shared library paths, needed by psql and pg_encoding
     # (if you run multibyte).  LD_LIBRARY_PATH covers many platforms,