# pg_am

The `pg_am` table stores information about table/index access methods. There is one row for each index/table access method supported by the system.



Table 1. `pg_catalog.pg_am`

| column            | type     | references  | description                                                  |
| :---------------- | :------- | :---------- | :----------------------------------------------------------- |
|`oid`	|oid	||	Row identifier (hidden attribute; must be explicitly selected)
|`amname`|	name||		Name of the access method
|`amhandler`|	regproc	||	OID of a handler function responsible for supplying information about the access method
|`amtype`	|char	|	|t for table (including materialized views), i for index