Bruce Momjian pgman@candle.pha.pa.us writes:
I modified the TODO. I think we only need an INT4. I realize INT8
would be for IPV6 but I can't imagine a network that has more than INT4
hosts (not part of the network address).
Actually increment the host address isn't a well-defined concept
Douglas McNaught wrote:
Bruce Momjian pgman@candle.pha.pa.us writes:
I modified the TODO. I think we only need an INT4. I realize INT8
would be for IPV6 but I can't imagine a network that has more than INT4
hosts (not part of the network address).
Actually increment the host address
* Bruce Momjian (pgman@candle.pha.pa.us) wrote:
Douglas McNaught wrote:
Bruce Momjian pgman@candle.pha.pa.us writes:
I modified the TODO. I think we only need an INT4. I realize INT8
would be for IPV6 but I can't imagine a network that has more than INT4
hosts (not part of the
Hi,
I modified the TODO. I think we only need an INT4. I realize INT8
would be for IPV6 but I can't imagine a network that has more than INT4
hosts (not part of the network address).
Actually increment the host address isn't a well-defined concept for
IPV6. The host part of the address
Patrick Welche wrote:
On Fri, May 20, 2005 at 11:12:54PM -0400, Bruce Momjian wrote:
Added to TODO:
* Allow INET + INT4/INT8 to increment the host part of the address, or
throw an error on overflow
I have not heard any use-case for adding to the network value if INET,
BM Would you modify this so it can go in /contrib or pgfoundry? Is there
BM general interest for this?
Actually, I suggested to do such or similar function as internal.
PostgreSQL has inet/cidr - excellent data type and good facilities to
examine and compare inet values, but has no facilities
On Mon, Apr 18, 2005 at 08:58:01PM -0400, Bruce Momjian wrote:
Would you modify this so it can go in /contrib or pgfoundry? Is there
general interest for this?
I was about to sit down and write the same function yesterday, when as if
by magic this appeared. In my case it is to loop over ip
Ilya A. Kovalenko wrote:
BM Would you modify this so it can go in /contrib or pgfoundry? Is there
BM general interest for this?
Actually, I suggested to do such or similar function as internal.
PostgreSQL has inet/cidr - excellent data type and good facilities to
examine and compare inet
Bruce Momjian pgman@candle.pha.pa.us writes:
am thinking we should support only inet + inet, like this:
SELECT '1.2.3.4'::inet + '0.0.1.2'::inet;
I don't think inet+inet makes any sense.
I think inet+int4 should work by adding to the host address and overflowing if
it exceeds the
Greg Stark wrote:
Bruce Momjian pgman@candle.pha.pa.us writes:
am thinking we should support only inet + inet, like this:
SELECT '1.2.3.4'::inet + '0.0.1.2'::inet;
I don't think inet+inet makes any sense.
I think inet+int4 should work by adding to the host address and
Bruce Momjian pgman@candle.pha.pa.us writes:
Ie,
10.0.0.0/24 + 1 = 10.0.0.1/24
10.0.0.255/24 + 1 = overflow
Or
10.1/16 + 1 = 10.1.0.1/16
10.1/16 + 16384 = 10.1.64.0/16
10.1/16 + 65536 = overflow
So, do not overflow?
You mean not doing modulus arithemtic?
On Tue, Apr 19, 2005 at 12:03:27 -0400,
Bruce Momjian pgman@candle.pha.pa.us wrote:
Agreed. Let's implement '+/-' for 'inet + int4' and put it in the
backend as standard (I can help do the system table stuff if you give me
the C functions). However, how do we handle cases where int4 255.
BM Greg Stark wrote:
Bruce Momjian pgman@candle.pha.pa.us writes:
am thinking we should support only inet + inet, like this:
SELECT '1.2.3.4'::inet + '0.0.1.2'::inet;
I don't think inet+inet makes any sense.
I think inet+int4 should work by adding to the host address and
GS I see a use case for of generating addresses based on a sequence or some
GS primary key from the database.
GS Something like
GS CREATE SEQUENCE hosts_ip_seq MAXVALUE 65536;
GS ALTER TABLE hosts ALTER ip SET DEFAULT '10.0.0.0/16'::inet +
nextval(hosts_ip_seq')
hmm, not quite good idea -
Would you modify this so it can go in /contrib or pgfoundry? Is there
general interest for this?
---
Ilya A. Kovalenko wrote:
Greetings,
I suggest function for inet increment w/ int8 (signed).
FUNCTION
Greetings,
I suggest function for inet increment w/ int8 (signed).
FUNCTION inet_inc(int, int8) RETURNS inet
Function, useful for making address pools (using also
existing inet compare functions to trap boundaries).
Notes:
This version lets address wrap around 0-*ff boundary.
Uses
oops
- FUNCTION inet_inc(int, int8) RETURNS inet
+ FUNCTION inet_inc(inet, int8) RETURNS inet
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