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Add bitwise AND, OR, and NOT operators for macaddr data type.

Browse source 
Brendan Jurd, reviewed by Fujii Masao
This commit is contained in:
Robert Haas 2012-01-19 15:23:04 -05:00
parent 4f42b546fd
commit cc53a1e7cc
8 changed files with 122 additions and 2 deletions
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4
doc/src/sgml/func.sgml
View file

@ -8300,7 +8300,9 @@ CREATE TYPE rainbow AS ENUM ('red', 'orange', 'yellow', 'green', 'blue', 'purple
<para>
The <type>macaddr</type> type also supports the standard relational
operators (<literal>&gt;</literal>, <literal>&lt;=</literal>, etc.) for
lexicographical ordering.
lexicographical ordering, and the bitwise arithmetic operators
(<literal>~</literal>, <literal>&amp;</literal> and <literal>|</literal>)
for NOT, AND and OR.
</para>
</sect1>

53
src/backend/utils/adt/mac.c
View file

@ -241,6 +241,59 @@ hashmacaddr(PG_FUNCTION_ARGS)
return hash_any((unsigned char *) key, sizeof(macaddr));
}
/*
* Arithmetic functions: bitwise NOT, AND, OR.
*/
Datum
macaddr_not(PG_FUNCTION_ARGS)
{
macaddr *addr = PG_GETARG_MACADDR_P(0);
macaddr *result;
result = (macaddr *) palloc(sizeof(macaddr));
result->a = ~addr->a;
result->b = ~addr->b;
result->c = ~addr->c;
result->d = ~addr->d;
result->e = ~addr->e;
result->f = ~addr->f;
PG_RETURN_MACADDR_P(result);
}
Datum
macaddr_and(PG_FUNCTION_ARGS)
{
macaddr *addr1 = PG_GETARG_MACADDR_P(0);
macaddr *addr2 = PG_GETARG_MACADDR_P(1);
macaddr *result;
result = (macaddr *) palloc(sizeof(macaddr));
result->a = addr1->a & addr2->a;
result->b = addr1->b & addr2->b;
result->c = addr1->c & addr2->c;
result->d = addr1->d & addr2->d;
result->e = addr1->e & addr2->e;
result->f = addr1->f & addr2->f;
PG_RETURN_MACADDR_P(result);
}
Datum
macaddr_or(PG_FUNCTION_ARGS)
{
macaddr *addr1 = PG_GETARG_MACADDR_P(0);
macaddr *addr2 = PG_GETARG_MACADDR_P(1);
macaddr *result;
result = (macaddr *) palloc(sizeof(macaddr));
result->a = addr1->a | addr2->a;
result->b = addr1->b | addr2->b;
result->c = addr1->c | addr2->c;
result->d = addr1->d | addr2->d;
result->e = addr1->e | addr2->e;
result->f = addr1->f | addr2->f;
PG_RETURN_MACADDR_P(result);
}
/*
* Truncation function to allow comparing mac manufacturers.
* From suggestion by Alex Pilosov <alex@pilosoft.com>

2
src/include/catalog/catversion.h
View file

@ -53,6 +53,6 @@
*/
/* yyyymmddN */
#define CATALOG_VERSION_NO 201201191
#define CATALOG_VERSION_NO 201201192
#endif

7
src/include/catalog/pg_operator.h
View file

@ -1116,6 +1116,13 @@ DESCR("greater than");
DATA(insert OID = 1225 ( ">=" PGNSP PGUID b f f 829 829 16 1223 1222 macaddr_ge scalargtsel scalargtjoinsel ));
DESCR("greater than or equal");
DATA(insert OID = 3147 ( "~" PGNSP PGUID l f f 0 829 829 0 0 macaddr_not - - ));
DESCR("bitwise not");
DATA(insert OID = 3148 ( "&" PGNSP PGUID b f f 829 829 829 0 0 macaddr_and - - ));
DESCR("bitwise and");
DATA(insert OID = 3149 ( "|" PGNSP PGUID b f f 829 829 829 0 0 macaddr_or - - ));
DESCR("bitwise or");
/* INET type (these also support CIDR via implicit cast) */
DATA(insert OID = 1201 ( "=" PGNSP PGUID b t t 869 869 16 1201 1202 network_eq eqsel eqjoinsel ));
DESCR("equal");

3
src/include/catalog/pg_proc.h
View file

@ -2039,6 +2039,9 @@ DATA(insert OID = 834 ( macaddr_ge PGNSP PGUID 12 1 0 0 0 f f f t f i 2 0 16
DATA(insert OID = 835 ( macaddr_ne PGNSP PGUID 12 1 0 0 0 f f f t f i 2 0 16 "829 829" _null_ _null_ _null_ _null_ macaddr_ne _null_ _null_ _null_ ));
DATA(insert OID = 836 ( macaddr_cmp PGNSP PGUID 12 1 0 0 0 f f f t f i 2 0 23 "829 829" _null_ _null_ _null_ _null_ macaddr_cmp _null_ _null_ _null_ ));
DESCR("less-equal-greater");
DATA(insert OID = 3144 ( macaddr_not PGNSP PGUID 12 1 0 0 0 f f f t f i 1 0 829 "829" _null_ _null_ _null_ _null_ macaddr_not _null_ _null_ _null_ ));
DATA(insert OID = 3145 ( macaddr_and PGNSP PGUID 12 1 0 0 0 f f f t f i 2 0 829 "829 829" _null_ _null_ _null_ _null_ macaddr_and _null_ _null_ _null_ ));
DATA(insert OID = 3146 ( macaddr_or PGNSP PGUID 12 1 0 0 0 f f f t f i 2 0 829 "829 829" _null_ _null_ _null_ _null_ macaddr_or _null_ _null_ _null_ ));
/* for inet type support */
DATA(insert OID = 910 ( inet_in PGNSP PGUID 12 1 0 0 0 f f f t f i 1 0 869 "2275" _null_ _null_ _null_ _null_ inet_in _null_ _null_ _null_ ));

3
src/include/utils/builtins.h
View file

@ -900,6 +900,9 @@ extern Datum macaddr_eq(PG_FUNCTION_ARGS);
extern Datum macaddr_ge(PG_FUNCTION_ARGS);
extern Datum macaddr_gt(PG_FUNCTION_ARGS);
extern Datum macaddr_ne(PG_FUNCTION_ARGS);
extern Datum macaddr_not(PG_FUNCTION_ARGS);
extern Datum macaddr_and(PG_FUNCTION_ARGS);
extern Datum macaddr_or(PG_FUNCTION_ARGS);
extern Datum macaddr_trunc(PG_FUNCTION_ARGS);
extern Datum hashmacaddr(PG_FUNCTION_ARGS);

48
src/test/regress/expected/macaddr.out
View file

@ -103,4 +103,52 @@ SELECT b <> '08:00:2b:01:02:03' FROM macaddr_data WHERE a = 1; -- false
f
(1 row)
SELECT ~b FROM macaddr_data;
?column?
-------------------
f7:ff:d4:fe:fd:fc
f7:ff:d4:fe:fd:fc
f7:ff:d4:fe:fd:fc
f7:ff:d4:fe:fd:fc
f7:ff:d4:fe:fd:fc
f7:ff:d4:fe:fd:fc
f7:ff:d4:fe:fd:fb
f7:ff:d4:fe:fd:fd
f7:ff:d5:fe:fd:fc
f7:ff:d3:fe:fd:fc
f7:ff:d5:fe:fd:fb
(11 rows)
SELECT b & '00:00:00:ff:ff:ff' FROM macaddr_data;
?column?
-------------------
00:00:00:01:02:03
00:00:00:01:02:03
00:00:00:01:02:03
00:00:00:01:02:03
00:00:00:01:02:03
00:00:00:01:02:03
00:00:00:01:02:04
00:00:00:01:02:02
00:00:00:01:02:03
00:00:00:01:02:03
00:00:00:01:02:04
(11 rows)
SELECT b | '01:02:03:04:05:06' FROM macaddr_data;
?column?
-------------------
09:02:2b:05:07:07
09:02:2b:05:07:07
09:02:2b:05:07:07
09:02:2b:05:07:07
09:02:2b:05:07:07
09:02:2b:05:07:07
09:02:2b:05:07:06
09:02:2b:05:07:06
09:02:2b:05:07:07
09:02:2f:05:07:07
09:02:2b:05:07:06
(11 rows)
DROP TABLE macaddr_data;

4
src/test/regress/sql/macaddr.sql
View file

@ -35,4 +35,8 @@ SELECT b = '08:00:2b:01:02:03' FROM macaddr_data WHERE a = 1; -- true
SELECT b <> '08:00:2b:01:02:04' FROM macaddr_data WHERE a = 1; -- true
SELECT b <> '08:00:2b:01:02:03' FROM macaddr_data WHERE a = 1; -- false
SELECT ~b FROM macaddr_data;
SELECT b & '00:00:00:ff:ff:ff' FROM macaddr_data;
SELECT b | '01:02:03:04:05:06' FROM macaddr_data;
DROP TABLE macaddr_data;