From: | "David E(dot) Wheeler" <david(at)kineticode(dot)com> |
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To: | PostgreSQL Hackers <pgsql-hackers(at)postgresql(dot)org> |
Cc: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com>, Merlin Moncure <mmoncure(at)gmail(dot)com>, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
Subject: | Re: proposal: plpgsql - iteration over fields of rec or row variable |
Date: | 2010-11-09 17:12:06 |
Message-ID: | D12B40B8-48B4-44EF-B1EC-14E296BD248A@kineticode.com |
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Lists: | pgsql-hackers |
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);
Best,
David
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