pg_amproc stores information about support
procedures
associated with index access method operator classes. There is one
row for each support procedure belonging to an operator class.
Table 3-5. pg_amproc Columns
| Name | Type | References | Description |
|---|
| amopclaid | oid | pg_opclass.oid | the index opclass this entry is for |
| amprocnum | int2 | | support procedure index |
| amproc | regproc | pg_proc.oid | OID of the proc |