plperl tests for currently untested features

continuing my quest for better testing ... ;-)

The current plperl regression tests do not test the trigger or shared
data features. The attached new files remedy that:

sql/plperl_trigger.sql
sql/plperl_shared.sql
expected/plperl_trigger.out
expected/plperl_shared.out

The corresponding patch for GNUmakefile is below

Is it worth supplying a more descriptive name to the current plperl.sql
test script?

cheers

andrew

Index: GNUmakefile
===================================================================
RCS file: /projects/cvsroot/pgsql/src/pl/plperl/GNUmakefile,v
retrieving revision 1.20
diff -c -r1.20 GNUmakefile
*** GNUmakefile 17 May 2005 18:26:22 -0000 1.20
--- GNUmakefile 23 May 2005 22:08:07 -0000
***************
*** 37,43 ****
SHLIB_LINK = $(perl_embed_ldflags) $(BE_DLLLIBS)

REGRESS_OPTS = --dbname=$(PL_TESTDB) --load-language=plperl
! REGRESS = plperl

include $(top_srcdir)/src/Makefile.shlib

--- 37,43 ----
SHLIB_LINK = $(perl_embed_ldflags) $(BE_DLLLIBS)

REGRESS_OPTS = --dbname=$(PL_TESTDB) --load-language=plperl
! REGRESS = plperl plperl_trigger plperl_shared

include $(top_srcdir)/src/Makefile.shlib