Network Operators

The network operators that are built into PostgreSQL are useful for making comparisons between IP addresses. These operators function on INET and CIDR data types equally.

Listing

<	Less than
<=	Less than or equal to
=	Equals
>=	Greater than or equal to
>	Greater than
<>	Not equal
<<	Contained within
<<=	Contained within or equals
>>	Contains
>>=	Contains or equals

Notes/Examples

Use the following to find all the IP addresses less than the one specified:

SELECT * FROM computers WHERE ipaddr<'192.168.0.100' 

Similarly, use the following to find all the IP addresses on the given subnet:

SELECT * FROM computers WHERE ipaddr<<'192.168.0.1/24'