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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