Re: proposal: plpgsql - iteration over fields of rec or row variable - Mailing list pgsql-hackers

From Dmitriy Igrishin
Subject Re: proposal: plpgsql - iteration over fields of rec or row variable
Date
Msg-id AANLkTi=Vxi=34KiHY2=EFpY4yTXZwXZPZ38Q-FEeOOsk@mail.gmail.com
Whole thread Raw
In response to Re: proposal: plpgsql - iteration over fields of rec or row variable  ("David E. Wheeler" <david@kineticode.com>)
Responses Re: proposal: plpgsql - iteration over fields of rec or row variable
List pgsql-hackers
Hey David,

2010/11/9 David E. Wheeler <david@kineticode.com>
On Nov 9, 2010, at 1:38 AM, Dmitriy Igrishin wrote:

> * text[] = record_to_array(record)
> * table(id, key, datatype, value) = record_to_table(record)
> * text = record_get_field(record, text)
> * record = record_set_field(record, text, anyelement)
>
> ??
> I personally like it. But I propose to add as well:
>   integer := record_nkeys();
>   text := record_get_field(record, integer);

You realize you can pretty much do all this with hstore, right?

 hstore hash := hstore(record);
 ary    text[] := hstore_to_matrix(hash);
 select * from each(hash); -- TABLE
 text foo := hash -> somekey;
 hash := hash || '"key","value"'::hstore;
 record := populate_record(record, hash);

Yep, but hstore is an additional module. Although, its not a problem.
 
Best,

David


--
Sent via pgsql-hackers mailing list (pgsql-hackers@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-hackers



--
// Dmitriy.


pgsql-hackers by date:

Previous
From: Tom Lane
Date:
Subject: Re: Protecting against unexpected zero-pages: proposal
Next
From: "David E. Wheeler"
Date:
Subject: Re: proposal: plpgsql - iteration over fields of rec or row variable