Re: Some problem with inet type on PostgreSQL-7.0

I can confirm your problem but there's no known fix. The truth is that the
inet/cidr types have quite a number of bogosities but no one understands
them well enough to undertake fixing them.

Vadim Passynkov writes:

> Hi All,
>
> I have some problem with inet type on PostgreSQL-7.0 (FreeBSD
> 3.4-STABLE)
>
> Table "ipaddresses"
> Attribute | Type | Modifier
> --------------+---------+----------------------------
> sysname | text | not null
> index | integer | not null
> ip_addr | inet | not null
>
> Indices: ipaddresses_ip_addr,
> ipaddresses_pkey
>
> (sysname, ip_addr) - PRIMARY KEY
>
> View "ipaddresses_view"
> Attribute | Type | Modifier
> --------------+---------+----------
> sysname | text |
> index | integer |
> ip_addr | inet |
> ip_netmask | inet |
>
> View definition: SELECT ipaddresses.sysname, ipaddresses."index",
> ipv4_host(ipaddresses.ip_addr) AS ip_addr,
> ipv4_netmask(ipaddresses.ip_addr) AS ip_netmask FROM ipaddresses;
>
>
> ipv4_host and ipv4_netmask like original host and netmask but return
> inet type ( need for ORDER )
>
> CREATE FUNCTION ipv4_host(inet) RETURNS inet AS '
> BEGIN
> RETURN host($1);
> END;
> ' LANGUAGE 'plpgsql';
>
> CREATE FUNCTION ipv4_netmask(inet) RETURNS inet AS '
> BEGIN
> RETURN netmask($1);
> END;
> ' LANGUAGE 'plpgsql';
>
>
> **************************** Problem ************************
>
> select * from ipaddresses where sysname = 'switch01.tor';
> sysname | index | ip_addr
> --------------+-------+------------------
> switch01.tor | 1 | 127.0/8
> switch01.tor | 2 | 127.0/8
> switch01.tor | 3 | 209.250.155.8/27
> (2 rows)
>
> but (sysname, ip_addr) - PRIMARY KEY
>
> 127.0/8 - it's not correct output ( real 127.0.0.2/8 and 127.0.0.3/8)
>
> select * from ipaddresses_view where sysname = 'switch01.tor';
> sysname | index | ip_addr | ip_netmask
> --------------+-------+---------------+-----------------
> switch01.tor | 1 | 127.0.0.2 | 255.0.0.0
> switch01.tor | 2 | 127.0.0.3 | 255.0.0.0
> switch01.tor | 3 | 209.250.155.8 | 255.255.255.224
> (2 rows)
>
>
> 127.0.0.2 | 255.0.0.0 and 127.0.0.3 | 255.0.0.0 - it's correct output
>
> And of course after pg_dump and restore correct value 127.0.0.2/8 and
> 127.0.0.3/8 will lose
> and will have problem with PRIMARY KEY - (sysname, ip_addr).
>
>

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