Re: embedded sql interface to ip address type
От | D'Arcy J.M. Cain |
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Тема | Re: embedded sql interface to ip address type |
Дата | |
Msg-id | 200303220533.30512.darcy@druid.net обсуждение исходный текст |
Ответ на | Re: embedded sql interface to ip address type (Michael Meskes <meskes@postgresql.org>) |
Ответы |
Re: embedded sql interface to ip address type
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Список | pgsql-interfaces |
> What exactly do you mean? A C type for IP addresses? That doesn't > exist. Right now this type has to be stored in character strings. You mean base types written in C? We certainly do. darcy=# select '123.4.5.6'::inet << '123.4.5.0/24'::cidr;?column? ----------t (1 row) darcy=# select '123.4.5.6'::inet << '123.4.6.0/24'::cidr;?column? ----------f (1 row) The above says that the IP address 123.4.5.6 is in the CIDR block 123.4.5.0/24 but not in 123.4.6.0/24. We also have a MAC address type. See the documentation pages at http://www.postgresql.org/docs/view.php?version=7.3&idoc=0&file=datatype-net-types.html and http://www.postgresql.org/docs/view.php?version=7.3&idoc=0&file=functions-net.html for details. -- D'Arcy J.M. Cain <darcy@{druid|vex}.net> | Democracy is three wolves http://www.druid.net/darcy/ | and a sheep voting on +1 416 425 1212 (DoD#0082) (eNTP) | what's for dinner.
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