*** a/src/backend/utils/adt/network.c
--- b/src/backend/utils/adt/network.c
***************
*** 471,476 **** network_ne(PG_FUNCTION_ARGS)
--- 471,499 ----
  	PG_RETURN_BOOL(network_cmp_internal(a1, a2) != 0);
  }
  
+ Datum
+ network_smaller(PG_FUNCTION_ARGS)
+ {
+ 	inet	   *a1 = PG_GETARG_INET_PP(0);
+ 	inet	   *a2 = PG_GETARG_INET_PP(1);
+ 
+ 	if (network_cmp_internal(a1, a2) < 0)
+ 		PG_RETURN_INET_P(a1);
+ 	else
+ 		PG_RETURN_INET_P(a2);
+ }
+ 
+ Datum
+ network_greater(PG_FUNCTION_ARGS)
+ {
+ 	inet	   *a1 = PG_GETARG_INET_PP(0);
+ 	inet	   *a2 = PG_GETARG_INET_PP(1);
+ 
+ 	if (network_cmp_internal(a1, a2) > 0)
+ 		PG_RETURN_INET_P(a1);
+ 	else
+ 		PG_RETURN_INET_P(a2);
+ }
  /*
   * Support function for hash indexes on inet/cidr.
   */
*** a/src/include/catalog/pg_aggregate.h
--- b/src/include/catalog/pg_aggregate.h
***************
*** 164,169 **** DATA(insert ( 2050	n 0 array_larger	-				-				-				-				f f 1073	2277	0	0		0	_nu
--- 164,170 ----
  DATA(insert ( 2244	n 0 bpchar_larger	-				-				-				-				f f 1060	1042	0	0		0	_null_ _null_ ));
  DATA(insert ( 2797	n 0 tidlarger		-				-				-				-				f f 2800	27		0	0		0	_null_ _null_ ));
  DATA(insert ( 3526	n 0 enum_larger		-				-				-				-				f f 3519	3500	0	0		0	_null_ _null_ ));
+ DATA(insert ( 3251	n 0 network_greater	-				-				-				-				f f 1205	869		0	0		0	_null_ _null_ ));
  
  /* min */
  DATA(insert ( 2131	n 0 int8smaller		-				-				-				-				f f 412		20		0	0		0	_null_ _null_ ));
***************
*** 186,191 **** DATA(insert ( 2051	n 0 array_smaller	-				-				-				-				f f 1072	2277	0	0		0	_n
--- 187,193 ----
  DATA(insert ( 2245	n 0 bpchar_smaller	-				-				-				-				f f 1058	1042	0	0		0	_null_ _null_ ));
  DATA(insert ( 2798	n 0 tidsmaller		-				-				-				-				f f 2799	27		0	0		0	_null_ _null_ ));
  DATA(insert ( 3527	n 0 enum_smaller	-				-				-				-				f f 3518	3500	0	0		0	_null_ _null_ ));
+ DATA(insert ( 3252	n 0 network_smaller	-				-				-				-				f f 1203	869		0	0		0	_null_ _null_ ));
  
  /* count */
  DATA(insert ( 2147	n 0 int8inc_any		-				int8inc_any		int8dec_any		-				f f 0		20		0	20		0	"0" "0" ));
*** a/src/include/catalog/pg_proc.h
--- b/src/include/catalog/pg_proc.h
***************
*** 2120,2125 **** DATA(insert OID = 922 (  network_le			PGNSP PGUID 12 1 0 0 0 f f f t t f i 2 0 1
--- 2120,2129 ----
  DATA(insert OID = 923 (  network_gt			PGNSP PGUID 12 1 0 0 0 f f f t t f i 2 0 16 "869 869" _null_ _null_ _null_ _null_	network_gt _null_ _null_ _null_ ));
  DATA(insert OID = 924 (  network_ge			PGNSP PGUID 12 1 0 0 0 f f f t t f i 2 0 16 "869 869" _null_ _null_ _null_ _null_	network_ge _null_ _null_ _null_ ));
  DATA(insert OID = 925 (  network_ne			PGNSP PGUID 12 1 0 0 0 f f f t t f i 2 0 16 "869 869" _null_ _null_ _null_ _null_	network_ne _null_ _null_ _null_ ));
+ DATA(insert OID = 3253 (  network_greater	PGNSP PGUID 12 1 0 0 0 f f f t t f i 2 0 869 "869 869" _null_ _null_ _null_ _null_	network_greater _null_ _null_ _null_ ));
+ DESCR("greater of two network types");
+ DATA(insert OID = 3254 (  network_smaller	PGNSP PGUID 12 1 0 0 0 f f f t t f i 2 0 869 "869 869" _null_ _null_ _null_ _null_	network_smaller _null_ _null_ _null_ ));
+ DESCR("smaller of two network types");
  DATA(insert OID = 926 (  network_cmp		PGNSP PGUID 12 1 0 0 0 f f f f t f i 2 0 23 "869 869" _null_ _null_ _null_ _null_	network_cmp _null_ _null_ _null_ ));
  DESCR("less-equal-greater");
  DATA(insert OID = 927 (  network_sub		PGNSP PGUID 12 1 0 0 0 f f f f t f i 2 0 16 "869 869" _null_ _null_ _null_ _null_	network_sub _null_ _null_ _null_ ));
***************
*** 3161,3166 **** DATA(insert OID = 2244 (  max				PGNSP PGUID 12 1 0 0 0 t f f f f f i 1 0 1042 "
--- 3165,3172 ----
  DESCR("maximum value of all bpchar input values");
  DATA(insert OID = 2797 (  max				PGNSP PGUID 12 1 0 0 0 t f f f f f i 1 0 27 "27" _null_ _null_ _null_ _null_ aggregate_dummy _null_ _null_ _null_ ));
  DESCR("maximum value of all tid input values");
+ DATA(insert OID = 3251 (  max				PGNSP PGUID 12 1 0 0 0 t f f f f f i 1 0 869 "869" _null_ _null_ _null_ _null_ aggregate_dummy _null_ _null_ _null_ ));
+ DESCR("maximum value of all inet input values");
  
  DATA(insert OID = 2131 (  min				PGNSP PGUID 12 1 0 0 0 t f f f f f i 1 0 20 "20" _null_ _null_ _null_ _null_ aggregate_dummy _null_ _null_ _null_ ));
  DESCR("minimum value of all bigint input values");
***************
*** 3200,3205 **** DATA(insert OID = 2245 (  min				PGNSP PGUID 12 1 0 0 0 t f f f f f i 1 0 1042 "
--- 3206,3213 ----
  DESCR("minimum value of all bpchar input values");
  DATA(insert OID = 2798 (  min				PGNSP PGUID 12 1 0 0 0 t f f f f f i 1 0 27 "27" _null_ _null_ _null_ _null_ aggregate_dummy _null_ _null_ _null_ ));
  DESCR("minimum value of all tid input values");
+ DATA(insert OID = 3252 (  min				PGNSP PGUID 12 1 0 0 0 t f f f f f i 1 0 869 "869" _null_ _null_ _null_ _null_ aggregate_dummy _null_ _null_ _null_ ));
+ DESCR("minimum value of all inet input values");
  
  /* count has two forms: count(any) and count(*) */
  DATA(insert OID = 2147 (  count				PGNSP PGUID 12 1 0 0 0 t f f f f f i 1 0 20 "2276" _null_ _null_ _null_ _null_	aggregate_dummy _null_ _null_ _null_ ));
*** a/src/include/utils/builtins.h
--- b/src/include/utils/builtins.h
***************
*** 907,912 **** extern Datum network_eq(PG_FUNCTION_ARGS);
--- 907,914 ----
  extern Datum network_ge(PG_FUNCTION_ARGS);
  extern Datum network_gt(PG_FUNCTION_ARGS);
  extern Datum network_ne(PG_FUNCTION_ARGS);
+ extern Datum network_smaller(PG_FUNCTION_ARGS);
+ extern Datum network_greater(PG_FUNCTION_ARGS);
  extern Datum hashinet(PG_FUNCTION_ARGS);
  extern Datum network_sub(PG_FUNCTION_ARGS);
  extern Datum network_subeq(PG_FUNCTION_ARGS);
*** a/src/test/regress/expected/create_function_3.out
--- b/src/test/regress/expected/create_function_3.out
***************
*** 312,321 **** namelt|boolean|[0:1]={name,name}
--- 312,323 ----
  namene|boolean|[0:1]={name,name}
  network_eq|boolean|[0:1]={inet,inet}
  network_ge|boolean|[0:1]={inet,inet}
+ network_greater|inet|[0:1]={inet,inet}
  network_gt|boolean|[0:1]={inet,inet}
  network_le|boolean|[0:1]={inet,inet}
  network_lt|boolean|[0:1]={inet,inet}
  network_ne|boolean|[0:1]={inet,inet}
+ network_smaller|inet|[0:1]={inet,inet}
  oideq|boolean|[0:1]={oid,oid}
  oidge|boolean|[0:1]={oid,oid}
  oidgt|boolean|[0:1]={oid,oid}
*** a/src/test/regress/expected/inet.out
--- b/src/test/regress/expected/inet.out
***************
*** 204,209 **** SELECT '' AS ten, i, c,
--- 204,215 ----
       | ::4.3.2.1/24     | ::ffff:1.2.3.4/128 | t  | t  | f  | f  | f  | t  | f  | f   | t   | t   | t
  (17 rows)
  
+ SELECT max(i) as max, min(i) as min FROM INET_TBL;
+      max     |    min    
+ -------------+-----------
+  10:23::ffff | 9.1.2.3/8
+ (1 row)
+ 
  -- check the conversion to/from text and set_netmask
  SELECT '' AS ten, set_masklen(inet(text(i)), 24) FROM INET_TBL;
   ten |   set_masklen    
*** a/src/test/regress/sql/inet.sql
--- b/src/test/regress/sql/inet.sql
***************
*** 56,61 **** SELECT '' AS ten, i, c,
--- 56,63 ----
    i && c AS ovr
    FROM INET_TBL;
  
+ SELECT max(i) as max, min(i) as min FROM INET_TBL;
+ 
  -- check the conversion to/from text and set_netmask
  SELECT '' AS ten, set_masklen(inet(text(i)), 24) FROM INET_TBL;