oai_fdw | PostgreSQL Foreign Data Wrapper for OAI-PMH Repositories

These support functions help to retrieve additional information from an OAI Server to allow harvesters to limit harvest requests to portions of the metadata available from a repository. SETOF OAI_IdentityNode OAI_Identify(server_name text);. server_name: Name of a previously created OAI Foreign Data Wrapper Server. This function is used to retrieve information about a repository. Some of the information returned is required as part of the OAI-PMH. Repositories may also employ the Identify verb to return additional descriptive information. SETOF OAI_MetadataFormat OAI_ListMetadataFormats(server_name text);. server_name: Name of a previously created OAI Foreign Data Wrapper Server. This function is used to retrieve the metadata formats available from a repository. An optional argument restricts the request to the formats available for a specific item. SETOF OAI_Set OAI_ListSets(server_name text);. server_name: Name of a previously created OAI Foreign Data Wrapper Server. This function is used to retrieve the set structure of a repository, useful for selective harvesting. Shows the version of the installed OAI FDW and its main libraries.