CREATE OR REPLACE FUNCTION dblink (text,text) RETURNS setof int
  AS 'MODULE_PATHNAME','dblink' LANGUAGE 'c'
  WITH (isstrict);

CREATE OR REPLACE FUNCTION dblink_tok (int,int) RETURNS text
  AS 'MODULE_PATHNAME','dblink_tok' LANGUAGE 'c'
  WITH (isstrict);

CREATE OR REPLACE FUNCTION dblink_strtok (text,text,int) RETURNS text
  AS 'MODULE_PATHNAME','dblink_strtok' LANGUAGE 'c'
  WITH (iscachable, isstrict);

CREATE OR REPLACE FUNCTION dblink_get_pkey (name) RETURNS setof text
  AS 'MODULE_PATHNAME','dblink_get_pkey' LANGUAGE 'c'
  WITH (isstrict);

CREATE OR REPLACE FUNCTION dblink_last_oid (int) RETURNS oid
  AS 'MODULE_PATHNAME','dblink_last_oid' LANGUAGE 'c'
  WITH (isstrict);

CREATE OR REPLACE FUNCTION dblink_build_sql_insert (name, int2vector, int2, _text, _text) RETURNS text
  AS 'MODULE_PATHNAME','dblink_build_sql_insert' LANGUAGE 'c'
  WITH (isstrict);

CREATE OR REPLACE FUNCTION dblink_build_sql_delete (name, int2vector, int2, _text) RETURNS text
  AS 'MODULE_PATHNAME','dblink_build_sql_delete' LANGUAGE 'c'
  WITH (isstrict);

CREATE OR REPLACE FUNCTION dblink_build_sql_update (name, int2vector, int2, _text, _text) RETURNS text
  AS 'MODULE_PATHNAME','dblink_build_sql_update' LANGUAGE 'c'
  WITH (isstrict);

CREATE OR REPLACE FUNCTION dblink_current_query () RETURNS text
  AS 'MODULE_PATHNAME','dblink_current_query' LANGUAGE 'c';

CREATE OR REPLACE FUNCTION dblink_replace (text,text,text) RETURNS text
  AS 'MODULE_PATHNAME','dblink_replace_text' LANGUAGE 'c'
  WITH (iscachable, isstrict);