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dynamic plpgsql command on a record type

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Hi,

in my plpgsql function I'm looping through tables and their fields and i want to return their field names and the corresponding values.
It all works fine, except i can't retrieve the values, which is really a bummer.
I tried a couple of things (in vain), of which this seemed the most promising:

<<records>>
FOR t_record IN EXECUTE
  t_qstring
LOOP
  <<fields>>
  FOR t_i IN 1..array_upper(t_fields, 1)
    LOOP
      t_rec_out.field_name := t_fields[t_i];
      --retrieve the value of this column, this record, this table into "field_value" for return.
      t_qstring := 't_record.'||t_fields[t_i]; --re-using t_qstring!
      EXECUTE t_qstring INTO t_rec_out.field_value; --<==== happens here ===
      RETURN NEXT t_rec_out;

On EXECUTE, i get the error:
ERROR:  syntax error at or near "t_record"

I also tried:

<<records>>
FOR t_record IN EXECUTE
  t_qstring
LOOP
  <<fields>>
  FOR t_i IN 1..array_upper(t_fields, 1)
    LOOP
      t_rec_out.field_name := t_fields[t_i];
      --retrieve the value of this column, this record, this table into "field_value" for return.
      t_rec_out.field_value := t_record.t_fields[t_i]; --<==== happens here ===
      RETURN NEXT t_rec_out;

And then i get the error:
ERROR:  record "t_record" has no field "t_fields"

Any tips there?

Cheers,

WBL

--
"Patriotism is the conviction that your country is superior to all others because you were born in it." -- George Bernard Shaw

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