GS_DATABASE_LINK
GS_DATABASE_LINK stores database link information, mainly recording detailed information about database links. Only sysadmin can read this system catalog.
| Name | Type | Description |
|---|---|---|
| oid | oid | Unique ID of the current database link object (hidden attribute, which must be specified). |
| dlname | name | Name of the current database link. |
| dlowner | oid | ID of the owner of the current database link. If the owner is public, the value is 0. |
| dlfdw | oid | OID of the foreign-data wrapper of the current database link. |
| dlcreater | oid | ID of the creator of the current database link. |
| options | text[] | Current database link connection information in the format of "keyword=value". |
| useroptions | text[] | User information used by the current database link to connect to the remote end, in the format of "keyword=value". |
| dlacl | aclitem[] | Current database link access permission. |
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