# pg_conversion

The `pg_conversion` system catalog table describes the available encoding conversion procedures as defined by `CREATE CONVERSION`.



Table 1. `pg_catalog.pg_conversion`

| column           | type    | references       | description                                                  |
| :--------------- | :------ | :--------------- | :----------------------------------------------------------- |
| `oid`        | oid    |                  | The object ID                |
| `conname`        | name    |                  | Conversion name (unique within a namespace).                 |
| `connamespace`   | oid     | pg_namespace.oid | The OID of the namespace (schema) that contains this conversion. |
| `conowner`       | oid     | pg_authid.oid    | Owner of the conversion.                                     |
| `conforencoding` | integer |                  | Source encoding ID.                                          |
| `contoencoding`  | integer |                  | Destination encoding ID.                                     |
| `conproc`        | regproc | pg_proc.oid      | Conversion procedure.                                        |
| `condefault`     | boolean |                  | True if this is the default conversion.                      |