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.

1 files changed, 9 insertions, 4 deletions

diff --git a/src/test/regress/input/create_function_2.source b/src/test/regress/input/create_function_2.source
index af6695764a..b1c0eab138 100644
--- a/src/test/regress/input/create_function_2.source
+++ b/src/test/regress/input/create_function_2.source
@@ -30,28 +30,33 @@ CREATE FUNCTION user_relns()
 CREATE FUNCTION pt_in_widget(point, widget)
    RETURNS bool
    AS '@abs_builddir@/regress@DLSUFFIX@'
-   LANGUAGE 'newC';
+   LANGUAGE 'C';
 
 CREATE FUNCTION overpaid(emp)
    RETURNS bool
    AS '@abs_builddir@/regress@DLSUFFIX@'
-   LANGUAGE 'newC';
+   LANGUAGE 'C';
 
 CREATE FUNCTION boxarea(box)
    RETURNS float8
    AS '@abs_builddir@/regress@DLSUFFIX@'
-   LANGUAGE 'newC';
+   LANGUAGE 'C';
 
 CREATE FUNCTION interpt_pp(path, path)
    RETURNS point
    AS '@abs_builddir@/regress@DLSUFFIX@'
-   LANGUAGE 'newC';
+   LANGUAGE 'C';
 
 CREATE FUNCTION reverse_name(name)
    RETURNS name
    AS '@abs_builddir@/regress@DLSUFFIX@'
    LANGUAGE 'c';
 
+CREATE FUNCTION oldstyle_length(int4, text)
+   RETURNS int4
+   AS '@abs_builddir@/regress@DLSUFFIX@'
+   LANGUAGE 'c';
+
 --
 -- Function dynamic loading
 --