coding.sergey » recipes http://coding.sergey.me Just another WordPress weblog Tue, 02 Mar 2010 21:52:23 +0000 http://wordpress.org/?v=2.6.1 en inet_ntoa and inet_aton functions for Postgresql http://coding.sergey.me/2009/03/31/inet_ntoa-and-inet_aton-functions-for-postgresql/ http://coding.sergey.me/2009/03/31/inet_ntoa-and-inet_aton-functions-for-postgresql/#comments Tue, 31 Mar 2009 14:18:43 +0000 sergey http://coding.sergey.me/?p=7 These functions can be used to convert integer to ip and visa verse. This sometimes also called inet_itoa and inet_atoi.


create or replace function inet_aton(inet) returns bigint as '
select inetmi($1,''0.0.0.0'');'
language sql immutable;
create or replace function inet_ntoa(int) returns inet as '
select ''0.0.0.0''::inet+$1;'
language sql immutable;

=> select inet_ntoa(16843265);
inet_itoa
———–
1.1.2.1
(1 row)

=> select inet_aton(’1.1.2.1′);
inet_atoi
———–
16843265
(1 row)

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