| From: | Vik Fearing <vik(dot)fearing(at)dalibo(dot)com> |
|---|---|
| To: | Dimitri Fontaine <dimitri(at)2ndQuadrant(dot)fr> |
| Cc: | Kevin Grittner <kgrittn(at)ymail(dot)com>, Stephen Frost <sfrost(at)snowman(dot)net>, Steve Singer <steve(at)ssinger(dot)info>, Andres Freund <andres(at)2ndquadrant(dot)com>, Robert Haas <robertmhaas(at)gmail(dot)com>, Hannu Krosing <hannu(at)2ndquadrant(dot)com>, "pgsql-hackers(at)postgresql(dot)org" <pgsql-hackers(at)postgresql(dot)org> |
| Subject: | Re: record identical operator |
| Date: | 2013-09-18 23:29:00 |
| Message-ID: | 523A373C.5080702@dalibo.com |
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| Lists: | pgsql-hackers |
On 09/19/2013 12:55 AM, Dimitri Fontaine wrote:
>> We have, as a community, gone to a fair amount of trouble to make
>> > the concept of equality pluggable and allow multiple types of
>> > equality per type. To me it seems the perfect tool to solve this
>> > problem. Why the fuss?
> Because I don't understand why you need another equality than the
> default btree one, certainly.
Basically because 'word'::citext and 'Word'::citext are the same to your
brain but not to your eyeballs.
Unique indexes, for example, only need to please your brain. Matviews
need to please your eyeballs.
--
Vik
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