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Add min and max aggregates for inet/cidr data types.

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Haribabu Kommi, reviewed by Muhammad Asif Naeem
This commit is contained in:
Tom Lane 2014-08-28 22:37:58 -04:00
parent ec544a65c9
commit 6c40f8316e
8 changed files with 59 additions and 3 deletions
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6
doc/src/sgml/func.sgml
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@ -12192,7 +12192,8 @@ NULL baz</literallayout>(3 rows)</entry>
</indexterm>
<function>max(<replaceable class="parameter">expression</replaceable>)</function>
</entry>
<entry>any array, numeric, string, or date/time type</entry>
<entry>any numeric, string, date/time, network, or enum type,
or arrays of these types</entry>
<entry>same as argument type</entry>
<entry>
maximum value of <replaceable
@ -12208,7 +12209,8 @@ NULL baz</literallayout>(3 rows)</entry>
</indexterm>
<function>min(<replaceable class="parameter">expression</replaceable>)</function>
</entry>
<entry>any array, numeric, string, or date/time type</entry>
<entry>any numeric, string, date/time, network, or enum type,
or arrays of these types</entry>
<entry>same as argument type</entry>
<entry>
minimum value of <replaceable

27
src/backend/utils/adt/network.c
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@ -471,6 +471,33 @@ network_ne(PG_FUNCTION_ARGS)
PG_RETURN_BOOL(network_cmp_internal(a1, a2) != 0);
}
/*
* MIN/MAX support functions.
*/
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_larger(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.
*/

2
src/include/catalog/catversion.h
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@ -53,6 +53,6 @@
*/
/* yyyymmddN */
#define CATALOG_VERSION_NO 201408162
#define CATALOG_VERSION_NO 201408281
#endif

2
src/include/catalog/pg_aggregate.h
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@ -164,6 +164,7 @@ DATA(insert ( 2050 n 0 array_larger - - - - f f 1073 2277 0 0 0 _nu
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 ( 3564 n 0 network_larger - - - - 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_ ));
@ -186,6 +187,7 @@ DATA(insert ( 2051 n 0 array_smaller - - - - f f 1072 2277 0 0 0 _n
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 ( 3565 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" ));

8
src/include/catalog/pg_proc.h
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@ -2122,6 +2122,10 @@ DATA(insert OID = 922 ( network_le PGNSP PGUID 12 1 0 0 0 f f f t t f i 2 0 1
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 = 3562 ( network_larger PGNSP PGUID 12 1 0 0 0 f f f f t f i 2 0 869 "869 869" _null_ _null_ _null_ _null_ network_larger _null_ _null_ _null_ ));
DESCR("larger of two");
DATA(insert OID = 3563 ( network_smaller PGNSP PGUID 12 1 0 0 0 f f f f t f i 2 0 869 "869 869" _null_ _null_ _null_ _null_ network_smaller _null_ _null_ _null_ ));
DESCR("smaller of two");
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_ ));
@ -3163,6 +3167,8 @@ DATA(insert OID = 2244 ( max PGNSP PGUID 12 1 0 0 0 t f f f f f i 1 0 1042 "
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 = 3564 ( 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");
@ -3202,6 +3208,8 @@ DATA(insert OID = 2245 ( min PGNSP PGUID 12 1 0 0 0 t f f f f f i 1 0 1042 "
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 = 3565 ( 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_ ));

2
src/include/utils/builtins.h
View File

@ -908,6 +908,8 @@ extern Datum network_eq(PG_FUNCTION_ARGS);
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_larger(PG_FUNCTION_ARGS);
extern Datum hashinet(PG_FUNCTION_ARGS);
extern Datum network_sub(PG_FUNCTION_ARGS);
extern Datum network_subeq(PG_FUNCTION_ARGS);

12
src/test/regress/expected/inet.out
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@ -204,6 +204,18 @@ SELECT '' AS ten, i, c,
| ::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)
SELECT max(c) AS max, min(c) AS min FROM INET_TBL;
max | min
-----------------+------------
10:23::8000/113 | 10.0.0.0/8
(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

3
src/test/regress/sql/inet.sql
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@ -56,6 +56,9 @@ SELECT '' AS ten, i, c,
i && c AS ovr
FROM INET_TBL;
SELECT max(i) AS max, min(i) AS min FROM INET_TBL;
SELECT max(c) AS max, min(c) 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;