Re: Accessing fields in a function that returns a set of composite type - How?
От | Matt Arnilo S. Baluyos (Mailing Lists) |
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Тема | Re: Accessing fields in a function that returns a set of composite type - How? |
Дата | |
Msg-id | d1a6d7930604181045x46cabad4w25fdd6cfde7a3a9e@mail.gmail.com обсуждение исходный текст |
Ответ на | Accessing fields in a function that returns a set of composite type - How? ("Matt Arnilo S. Baluyos (Mailing Lists)" <matt.baluyos.lists@gmail.com>) |
Список | pgsql-novice |
On 4/19/06, Matt Arnilo S. Baluyos (Mailing Lists) <matt.baluyos.lists@gmail.com> wrote: > I have a composite type for search_result. This is the definition: > > Composite type "public.search_result" > Column | Type > ---------------+--------- > article_id | integer > article_title | text > headline | text > rank | real > > > I then have a pl/pgsql function that returns a set of "search_result" > > CREATE FUNCTION search(text) RETURNS SETOF search_result LANGUAGE sql $$ > SELECT article_id, article_title, headline(article_text, q), > rank(article_vector, q) > FROM articles, to_tsquery($1) AS q > WHERE article_vector @@ q ORDER BY rank(article_vector, q) DESC; > > To do a full-text search, I only need to do this: > > SELECT search('string'); > > However, running the function gives me a recordset with only one > column ("search"). I'd like to be able to access the fields of the > composite type (search_result) that is returned by the function - > article_id, article_title, headline, and rank. I haven't figured out > how to do this but it's necessary because I want to be able to control > the formatting of the output. Hmmm... figured it out already. Please disregard my previous post. You only need to do a... SELECT * FROM search('search_string'); -- Stand before it and there is no beginning. Follow it and there is no end. Stay with the ancient Tao, Move with the present.
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