Hämta källkodspaketet ip4r:
This PostgreSQL module provides two data types, ip4 and ip4r, which can contain a single IPv4 address or a range of IPv4 addresses, respectively.
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 type.
Firstly and most importantly, the built-in types have no support for index lookups of the form (column >>= parameter), i.e. where you have a table of IP address ranges and wish to find which ones include a given IP address. This requires an rtree or gist index to do efficiently, and also requires a way to represent IP address ranges that do not fall precisely on CIDR boundaries.
Secondly, the built-in inet/cidr are somewhat overloaded with semantics, with inet combining two distinct concepts (a netblock, and a specific IP within that netblock). Furthermore, they are variable length types (to support IPv6) with non-trivial overheads, and the authors (whose applications mainly deal in large volumes of single IPv4 addresses) wanted a more lightweight representation.
ip4r therefore supports two distinct data types (so far):
ip4 - a single IPv4 address ip4r - an arbitrary range of IPv4 addresses
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| Arkitektur | Paketstorlek | Installerad storlek | Filer |
|---|---|---|---|
| alpha | 24,7 kbyte | 132 kbyte | [filförteckning] |
| amd64 | 23,0 kbyte | 68 kbyte | [filförteckning] |
| armel | 21,9 kbyte | 116 kbyte | [filförteckning] |
| hppa | 22,6 kbyte | 120 kbyte | [filförteckning] |
| hurd-i386 | 20,8 kbyte | 116 kbyte | [filförteckning] |
| i386 | 21,7 kbyte | 64 kbyte | [filförteckning] |
| ia64 | 25,6 kbyte | 136 kbyte | [filförteckning] |
| kfreebsd-amd64 | 23,0 kbyte | 88 kbyte | [filförteckning] |
| kfreebsd-i386 | 21,7 kbyte | 82 kbyte | [filförteckning] |
| mips | 21,2 kbyte | 124 kbyte | [filförteckning] |
| mipsel | 21,1 kbyte | 124 kbyte | [filförteckning] |
| powerpc | 24,3 kbyte | 128 kbyte | [filförteckning] |
| s390 | 24,5 kbyte | 124 kbyte | [filförteckning] |
| sparc | 22,0 kbyte | 120 kbyte | [filförteckning] |