Re: [pg_trgm] Making similarity(?, ?) < ? use an index

Поиск
Список
Период
Сортировка
От Jeff Janes
Тема Re: [pg_trgm] Making similarity(?, ?) < ? use an index
Дата
Msg-id CAMkU=1zJP351krhrc_PHE9f4L4gsm=iAqvXUoE-e2aT-FX8n7A@mail.gmail.com
обсуждение исходный текст
Ответ на Re: [pg_trgm] Making similarity(?, ?) < ? use an index  (Greg Navis <contact@gregnavis.com>)
Ответы Re: [pg_trgm] Making similarity(?, ?) < ? use an index  ("David G. Johnston" <david.g.johnston@gmail.com>)
Re: [pg_trgm] Making similarity(?, ?) < ? use an index  (Tom Lane <tgl@sss.pgh.pa.us>)
Список pgsql-general
On Fri, Jun 3, 2016 at 12:13 PM, Greg Navis <contact@gregnavis.com> wrote:
> Thanks for answers and sorry for not searching hard enough.
>
> I'm curious ... would it be difficult to modify PostgreSQL so that it'd use
> the index for `similarity(lhs, rhs) >= show_limit()` too?

Yes, that would be very difficult. The project has kind of painted
itself into a corner on that.

If it were easy, I doubt we would have added the % operator with the
ugly set_limit() wart in the first place (although I was not around at
the time that was done--maybe there were other considerations).

Cheers,

Jeff


В списке pgsql-general по дате отправления:

Предыдущее
От: "David G. Johnston"
Дата:
Сообщение: Re: [pg_trgm] Making similarity(?, ?) < ? use an index
Следующее
От: Adrian Klaver
Дата:
Сообщение: Re: Londiste3 - Ubuntu 16.04 - Postgresql 9.3