When I dumped (via pg_dump) a database that had PL/pgsql functions defined, 
the following happened:

  CREATE FUNCTION val0_id (int4 ) RETURNS text AS 'unknown' LANGUAGE 'unknown';
  CREATE FUNCTION val1_id (int4 ) RETURNS text AS 'unknown' LANGUAGE 'unknown';
  CREATE FUNCTION val0_sect (text,char ) RETURNS text AS 'unknown' LANGUAGE
     'unknown';
  CREATE FUNCTION val1_sect (text,char ) RETURNS text AS 'unknown' LANGUAGE
     'unknown';

Apparently, pg_dump does not recognize/handle PL/pgsql functions yet.
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Responses

• Re: [HACKERS] Problem dumping PL/pgsql functions. at 1998-10-05 07:17:57 from Jan Wieck
• Re: [HACKERS] Problem dumping PL/pgsql functions. at 1998-10-12 01:19:44 from Bruce Momjian

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