Table 4-6. PostgresIP V4 CIDR Operators
| Operator | Description | Usage | 
|---|---|---|
| < | Less than | '192.168.1.5'::cidr < '192.168.1.6'::cidr | 
| <= | Less than or equal | '192.168.1.5'::cidr <= '192.168.1.5'::cidr | 
| = | Equals | '192.168.1.5'::cidr = '192.168.1.5'::cidr | 
| >= | Greater or equal | '192.168.1.5'::cidr >= '192.168.1.5'::cidr | 
| > | Greater | '192.168.1.5'::cidr > '192.168.1.4'::cidr | 
| <> | Not equal | '192.168.1.5'::cidr <> '192.168.1.4'::cidr | 
| << | is contained within | '192.168.1.5'::cidr << '192.168.1/24'::cidr | 
| <<= | is contained within or equals | '192.168.1/24'::cidr <<= '192.168.1/24'::cidr | 
| >> | contains | '192.168.1/24'::cidr >> '192.168.1.5'::cidr | 
| >>= | contains or equals | '192.168.1/24'::cidr >>= '192.168.1/24'::cidr |