pg_amop stores information about operators
associated with index access method operator classes. There is one
row for each operator that is a member of an operator class.
Table 3-4. pg_amop Columns
| Name | Type | References | Description |
|---|
| amopclaid | oid | pg_opclass.oid | the index opclass this entry is for |
| amopstrategy | int2 | | operator strategy number |
| amopreqcheck | bool | | index hit must be rechecked |
| amopopr | oid | pg_operator.oid | the operator's pg_operator OID |