Clean up CREATE FUNCTION syntax usage in contrib and elsewhere, in

particular get rid of single quotes around language names and old WITH ()
construct.

contrib/tablefunc/README.tablefunc

@@ -315,7 +315,7 @@ Notes
 
       CREATE OR REPLACE FUNCTION crosstab_float8_5_cols(text)
         RETURNS setof my_crosstab_float8_5_cols
-        AS '$libdir/tablefunc','crosstab' LANGUAGE 'c' STABLE STRICT;
+        AS '$libdir/tablefunc','crosstab' LANGUAGE C STABLE STRICT;
 
       B. Use OUT parameters to define the return type implicitly.
       The same example could also be done this way:
@@ -328,7 +328,7 @@ Notes
           OUT category_4 FLOAT8,
           OUT category_5 FLOAT8)
         RETURNS setof record
-        AS '$libdir/tablefunc','crosstab' LANGUAGE 'c' STABLE STRICT;
+        AS '$libdir/tablefunc','crosstab' LANGUAGE C STABLE STRICT;
 
 
 Example usage

contrib/tablefunc/expected/tablefunc.out

@@ -128,7 +128,7 @@ CREATE FUNCTION crosstab_out(text,
 	OUT rowid text, OUT att1 text, OUT att2 text, OUT att3 text)
 RETURNS setof record
 AS '$libdir/tablefunc','crosstab'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 SELECT * FROM crosstab_out('SELECT rowid, attribute, val FROM ct where rowclass = ''group1'' ORDER BY 1,2;');
  rowid | att1 | att2 | att3 
 -------+------+------+------
@@ -231,7 +231,7 @@ create type my_crosstab_result as (
 CREATE FUNCTION crosstab_named(text, text)
 RETURNS setof my_crosstab_result
 AS '$libdir/tablefunc','crosstab_hash'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 SELECT * FROM crosstab_named(
   'SELECT rowid, rowdt, attribute, val FROM cth ORDER BY 1',
   'SELECT DISTINCT attribute FROM cth ORDER BY 1');
@@ -248,7 +248,7 @@ CREATE FUNCTION crosstab_out(text, text,
   OUT test_startdate timestamp, OUT volts float8)
 RETURNS setof record
 AS '$libdir/tablefunc','crosstab_hash'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 SELECT * FROM crosstab_out(
   'SELECT rowid, rowdt, attribute, val FROM cth ORDER BY 1',
   'SELECT DISTINCT attribute FROM cth ORDER BY 1');

contrib/tablefunc/sql/tablefunc.sql

@@ -44,7 +44,7 @@ CREATE FUNCTION crosstab_out(text,
 	OUT rowid text, OUT att1 text, OUT att2 text, OUT att3 text)
 RETURNS setof record
 AS '$libdir/tablefunc','crosstab'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 
 SELECT * FROM crosstab_out('SELECT rowid, attribute, val FROM ct where rowclass = ''group1'' ORDER BY 1,2;');
 
@@ -119,7 +119,7 @@ create type my_crosstab_result as (
 CREATE FUNCTION crosstab_named(text, text)
 RETURNS setof my_crosstab_result
 AS '$libdir/tablefunc','crosstab_hash'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 
 SELECT * FROM crosstab_named(
   'SELECT rowid, rowdt, attribute, val FROM cth ORDER BY 1',
@@ -133,7 +133,7 @@ CREATE FUNCTION crosstab_out(text, text,
   OUT test_startdate timestamp, OUT volts float8)
 RETURNS setof record
 AS '$libdir/tablefunc','crosstab_hash'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 
 SELECT * FROM crosstab_out(
   'SELECT rowid, rowdt, attribute, val FROM cth ORDER BY 1',

contrib/tablefunc/tablefunc.sql.in

@@ -4,13 +4,13 @@ SET search_path = public;
 CREATE OR REPLACE FUNCTION normal_rand(int4, float8, float8)
 RETURNS setof float8
 AS 'MODULE_PATHNAME','normal_rand'
-LANGUAGE 'C' VOLATILE STRICT;
+LANGUAGE C VOLATILE STRICT;
 
 -- the generic crosstab function:
 CREATE OR REPLACE FUNCTION crosstab(text)
 RETURNS setof record
 AS 'MODULE_PATHNAME','crosstab'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 
 -- examples of building custom type-specific crosstab functions:
 CREATE TYPE tablefunc_crosstab_2 AS
@@ -40,47 +40,47 @@ CREATE TYPE tablefunc_crosstab_4 AS
 CREATE OR REPLACE FUNCTION crosstab2(text)
 RETURNS setof tablefunc_crosstab_2
 AS 'MODULE_PATHNAME','crosstab'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 
 CREATE OR REPLACE FUNCTION crosstab3(text)
 RETURNS setof tablefunc_crosstab_3
 AS 'MODULE_PATHNAME','crosstab'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 
 CREATE OR REPLACE FUNCTION crosstab4(text)
 RETURNS setof tablefunc_crosstab_4
 AS 'MODULE_PATHNAME','crosstab'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 
 -- obsolete:
 CREATE OR REPLACE FUNCTION crosstab(text,int)
 RETURNS setof record
 AS 'MODULE_PATHNAME','crosstab'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 
 CREATE OR REPLACE FUNCTION crosstab(text,text)
 RETURNS setof record
 AS 'MODULE_PATHNAME','crosstab_hash'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 
 CREATE OR REPLACE FUNCTION connectby(text,text,text,text,int,text)
 RETURNS setof record
 AS 'MODULE_PATHNAME','connectby_text'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 
 CREATE OR REPLACE FUNCTION connectby(text,text,text,text,int)
 RETURNS setof record
 AS 'MODULE_PATHNAME','connectby_text'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 
 -- These 2 take the name of a field to ORDER BY as 4th arg (for sorting siblings)
 
 CREATE OR REPLACE FUNCTION connectby(text,text,text,text,text,int,text)
 RETURNS setof record
 AS 'MODULE_PATHNAME','connectby_text_serial'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;
 
 CREATE OR REPLACE FUNCTION connectby(text,text,text,text,text,int)
 RETURNS setof record
 AS 'MODULE_PATHNAME','connectby_text_serial'
-LANGUAGE 'C' STABLE STRICT;
+LANGUAGE C STABLE STRICT;