Revise handling of oldstyle/newstyle functions per recent discussions

in pghackers list.  Support for oldstyle internal functions is gone
(no longer needed, since conversion is complete) and pg_language entry
'internal' now implies newstyle call convention.  pg_language entry
'newC' is gone; both old and newstyle dynamically loaded C functions
are now called language 'C'.  A newstyle function must be identified
by an associated info routine.  See src/backend/utils/fmgr/README.

contrib/fulltextindex/README.fti

@@ -57,7 +57,7 @@ sub-string will fit.
 The create the function that contains the trigger::
 
 	create function fti() returns opaque as
-	    '/path/to/fti.so' language 'newC';
+	    '/path/to/fti.so' language 'C';
 
 And finally define the trigger on the 'cds' table:
 

contrib/fulltextindex/fti.c

@@ -17,7 +17,7 @@
 	Example:
 
 create function fti() returns opaque as
-'/home/boekhold/src/postgresql-6.2/contrib/fti/fti.so' language 'newC';
+'/home/boekhold/src/postgresql-6.2/contrib/fti/fti.so' language 'C';
 
 create table title_fti (string varchar(25), id oid);
 create index title_fti_idx on title_fti (string);
@@ -93,6 +93,8 @@ static int	nDeletePlans = 0;
 static EPlan *find_plan(char *ident, EPlan ** eplan, int *nplans);
 
 /***********************************************************************/
+PG_FUNCTION_INFO_V1(fti);
+
 Datum
 fti(PG_FUNCTION_ARGS)
 {

contrib/fulltextindex/fti.pl

@@ -29,7 +29,7 @@
 #
 #		create function fti() returns opaque as
 #			'/path/to/fti/file/fti.so'
-#		language 'newC';
+#		language 'C';
 #
 #		create trigger my_fti_trigger after update or insert or delete
 #			on mytable

contrib/fulltextindex/fti.sql.in

 create function fti() returns opaque as
 	'MODULE_PATHNAME'
-	language 'newC';
\ No newline at end of file
+	language 'C';
\ No newline at end of file

contrib/lo/lo.c

 /*
  *	PostgreSQL type definitions for managed LargeObjects.
  *
- *	$Id: lo.c,v 1.4 2000/06/09 01:10:58 tgl Exp $
+ *	$Id: lo.c,v 1.5 2000/11/20 20:36:55 tgl Exp $
  *
  */
 
@@ -140,6 +140,8 @@ lo(Oid oid)
 /*
  * This handles the trigger that protects us from orphaned large objects
  */
+PG_FUNCTION_INFO_V1(lo_manage);
+
 Datum
 lo_manage(PG_FUNCTION_ARGS)
 {

contrib/lo/lo.sql.in

 --
 --	PostgreSQL code for LargeObjects
 --
---	$Id: lo.sql.in,v 1.4 2000/06/19 13:53:42 momjian Exp $
+--	$Id: lo.sql.in,v 1.5 2000/11/20 20:36:55 tgl Exp $
 --
 --
 --	Create the data type
@@ -44,7 +44,7 @@ create function lo(oid)
 create function lo_manage()
 	returns opaque
 	as 'MODULE_PATHNAME'
-	language 'newC';
+	language 'C';
 
 -- This allows us to map lo to oid
 --

contrib/noupdate/noup.c

@@ -16,6 +16,8 @@ extern Datum noup(PG_FUNCTION_ARGS);
  * EXECUTE PROCEDURE noup ('col').
  */
 
+PG_FUNCTION_INFO_V1(noup);
+
 Datum
 noup(PG_FUNCTION_ARGS)
 {

contrib/noupdate/noup.sql.in

@@ -3,5 +3,4 @@ DROP FUNCTION noup ();
 CREATE FUNCTION noup ()
 	RETURNS opaque
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'newC'
-;
+	LANGUAGE 'C';

contrib/pgcrypto/pgcrypto.c

@@ -26,7 +26,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- * $Id: pgcrypto.c,v 1.1 2000/10/31 13:11:28 petere Exp $
+ * $Id: pgcrypto.c,v 1.2 2000/11/20 20:36:56 tgl Exp $
  */
 
 #include <postgres.h>
@@ -59,6 +59,8 @@ find_digest(pg_digest *hbuf, text *name, int silent);
 
 
 /* SQL function: hash(text, text) returns text */
+PG_FUNCTION_INFO_V1(digest);
+
 Datum
 digest(PG_FUNCTION_ARGS)
 {
@@ -95,6 +97,8 @@ digest(PG_FUNCTION_ARGS)
 }
 
 /* check if given hash exists */
+PG_FUNCTION_INFO_V1(digest_exists);
+
 Datum
 digest_exists(PG_FUNCTION_ARGS)
 {

contrib/pgcrypto/pgcrypto.sql.in

@@ -4,9 +4,9 @@
 
 CREATE FUNCTION digest(text, text) RETURNS text
   AS '@MODULE_FILENAME@',
-  'digest' LANGUAGE 'newC';
+  'digest' LANGUAGE 'C';
 
 CREATE FUNCTION digest_exists(text) RETURNS bool
   AS '@MODULE_FILENAME@',
-  'digest_exists' LANGUAGE 'newC';
+  'digest_exists' LANGUAGE 'C';
 

contrib/soundex/soundex.c

-/* $Header: /cvsroot/pgsql/contrib/soundex/Attic/soundex.c,v 1.7 2000/10/04 19:25:34 petere Exp $ */
+/* $Header: /cvsroot/pgsql/contrib/soundex/Attic/soundex.c,v 1.8 2000/11/20 20:36:57 tgl Exp $ */
 #include "postgres.h"
 #include "fmgr.h"
 #include "utils/builtins.h"
@@ -7,11 +7,9 @@
 #include <stdio.h>
 
 
-Datum
-text_soundex(PG_FUNCTION_ARGS);
+Datum text_soundex(PG_FUNCTION_ARGS);
 
-static void
-soundex(const char *instr, char *outstr);
+static void soundex(const char *instr, char *outstr);
 
 #define SOUNDEX_LEN 4
 
@@ -24,6 +22,8 @@ soundex(const char *instr, char *outstr);
 /*
  * SQL function: text_soundex(text) returns text
  */
+PG_FUNCTION_INFO_V1(text_soundex);
+
 Datum
 text_soundex(PG_FUNCTION_ARGS)
 {
@@ -36,6 +36,7 @@ text_soundex(PG_FUNCTION_ARGS)
 
 	PG_RETURN_TEXT_P(_textin(outstr));
 }
+
 #endif /* not SOUNDEX_TEST */
 
 

contrib/soundex/soundex.sql.in

 CREATE FUNCTION text_soundex(text) RETURNS text
-  AS '@MODULE_FILENAME@', 'text_soundex' LANGUAGE 'newC';
+  AS '@MODULE_FILENAME@', 'text_soundex' LANGUAGE 'C';
 
 CREATE FUNCTION soundex(text) RETURNS text
-  AS '@MODULE_FILENAME@', 'text_soundex' LANGUAGE 'newC';
+  AS '@MODULE_FILENAME@', 'text_soundex' LANGUAGE 'C';

contrib/spi/autoinc.c

@@ -5,6 +5,8 @@
 
 extern Datum autoinc(PG_FUNCTION_ARGS);
 
+PG_FUNCTION_INFO_V1(autoinc);
+
 Datum
 autoinc(PG_FUNCTION_ARGS)
 {

contrib/spi/autoinc.sql.in

@@ -3,4 +3,4 @@ DROP FUNCTION autoinc();
 CREATE FUNCTION autoinc() 
 	RETURNS opaque 
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'newC';
+	LANGUAGE 'C';

contrib/spi/insert_username.c

@@ -12,6 +12,8 @@
 
 extern Datum	insert_username(PG_FUNCTION_ARGS);
 
+PG_FUNCTION_INFO_V1(insert_username);
+
 Datum
 insert_username(PG_FUNCTION_ARGS)
 {

contrib/spi/insert_username.sql.in

@@ -3,4 +3,4 @@ DROP FUNCTION insert_username();
 CREATE FUNCTION insert_username() 
 	RETURNS opaque 
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'newC';
+	LANGUAGE 'C';

contrib/spi/moddatetime.c

@@ -17,6 +17,8 @@ OH, me, I'm Terry Mackintosh <terry@terrym.com>
 
 extern Datum	moddatetime(PG_FUNCTION_ARGS);
 
+PG_FUNCTION_INFO_V1(moddatetime);
+
 Datum
 moddatetime(PG_FUNCTION_ARGS)
 {

contrib/spi/moddatetime.sql.in

@@ -3,4 +3,4 @@ DROP FUNCTION moddatetime();
 CREATE FUNCTION moddatetime() 
 	RETURNS opaque 
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'newC';
+	LANGUAGE 'C';

contrib/spi/refint.c

@@ -36,6 +36,8 @@ static EPlan *find_plan(char *ident, EPlan ** eplan, int *nplans);
  * check_primary_key ('Fkey1', 'Fkey2', 'Ptable', 'Pkey1', 'Pkey2').
  */
 
+PG_FUNCTION_INFO_V1(check_primary_key);
+
 Datum
 check_primary_key(PG_FUNCTION_ARGS)
 {
@@ -216,6 +218,8 @@ check_primary_key(PG_FUNCTION_ARGS)
  * 'Ftable1', 'Fkey11', 'Fkey12', 'Ftable2', 'Fkey21', 'Fkey22').
  */
 
+PG_FUNCTION_INFO_V1(check_foreign_key);
+
 Datum
 check_foreign_key(PG_FUNCTION_ARGS)
 {

contrib/spi/refint.sql.in

@@ -4,11 +4,9 @@ DROP FUNCTION check_foreign_key ();
 CREATE FUNCTION check_primary_key ()
 	RETURNS opaque
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'newC'
-;
+	LANGUAGE 'C';
 
 CREATE FUNCTION check_foreign_key ()
 	RETURNS opaque
 	AS 'MODULE_PATHNAME'
-	LANGUAGE 'newC'
-;
+	LANGUAGE 'C';