套件：postgresql-15-ip4r（2.4.1-8） [debports]

IPv4 and IPv6 types for PostgreSQL 15

This PostgreSQL module provides several data types which can contain single IPv4 or IPv6 addresses or a range of such addresses.

ip4r supports these data types:

 ip4:       IPv4 address '#.#.#.#'
 ip4r:      IPv4 range '#.#.#.#-#.#.#.#' or '#.#.#.#/#' or '#.#.#.#'
 ip6:       IPv6 address 'xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx'
 ip6r:      IPv6 range '#-#' or '#/#' or '#'
 ipaddress: IPv4 or IPv6 address
 iprange:   IPv4 or IPv6 range

While PostgreSQL already has built-in types 'inet' and 'cidr', the authors of this module found that they had a number of requirements that were not addressed by the built-in types.

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