| From: | Pavel Stehule <pavel(dot)stehule(at)gmail(dot)com> |
|---|---|
| To: | Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> |
| Cc: | Robert Haas <robertmhaas(at)gmail(dot)com>, Peter Eisentraut <peter_e(at)gmx(dot)net>, Andres Freund <andres(at)anarazel(dot)de>, pgsql-hackers(at)postgresql(dot)org, Dmitriy Igrishin <dmitigr(at)gmail(dot)com>, Jan Urbański <wulczer(at)wulczer(dot)org> |
| Subject: | Re: hstores in pl/python |
| Date: | 2010-12-14 17:18:21 |
| Message-ID: | AANLkTi=SrUvAU-7yRFw59Hwfmj0s+=d64vc4oc4m1RyM@mail.gmail.com |
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2010/12/14 Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>:
> Robert Haas <robertmhaas(at)gmail(dot)com> writes:
>> On Tue, Dec 14, 2010 at 11:51 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
>>> If the element values all have to be the same type, you've
>>> basically got hstore.
>
>> Not exactly, because in hstore all the element values have to be,
>> specifically, text. Having hstores of other kinds of objects would,
>> presumably, be useful.
>
> Maybe, but I'm sure they'd have far less application than hstore.
> There's a reason why that's based on text and not some other type ...
>
I don't think. For example - numeric array indexed with string is
often use case. Now you have to use a PLperl hashs.
Pavel
> regards, tom lane
>
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