dynamic plpgsql command on a record type

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

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