Dynamic binding issue - Mailing list pgsql-general

From Lorusso Domenico
Subject Dynamic binding issue
Date
Msg-id CAJMpnG6sN3KWMq4KZ21eMUZWvGSpkYZ7S_XdBtLdb4_nFdksQQ@mail.gmail.com
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Responses Re: Dynamic binding issue  (Adrian Klaver <adrian.klaver@aklaver.com>)
List pgsql-general
Hello guys,
I'm a problem with dynamic sql.
I am trying to write a generic function that is able to read and update a table based on some data coming from e previous record.
Here the example
_sqlStr=format('select *
  from  %1$s.%2$s
  where (' || array_to_string(_activeRec.pk_columns_list, ',') || ') in (select ' ||
  'row($1[''' || array_to_string(_activeRec.pk_columns_list, '''],$1[''') || ''']))'
  , _activeRec.name_of_schema, _activeRec.main_table);

execute _sqlStr using oldRec into _rec;

My problem is oldRec is a type record, so the substitution performed by execute fails, because it can't recognize the field if the variable is record and not a specific composite record type.

I suppose this is a recurrent question, but I can't find a solution...

--
Domenico L.

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