Re: <-> Operator on Trigram Index

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От Arthur Zakirov
Тема Re: <-> Operator on Trigram Index
Дата
Msg-id dda9c633-6628-b3a3-78e6-0dc7bb279b82@postgrespro.ru
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Ответ на <-> Operator on Trigram Index  (Jeffrey Kamei <jeff@windfalldata.com>)
Список pgsql-general
Hello,

On 14.11.2018 01:42, Jeffrey Kamei wrote:
> I'm trying to get the <-> operator to recognize a trigram index (GIST) 
> I've set on a table. Using `EXPLAIN VERBOSE` I can see the query engine 
> ignoring the trigram index when using the `<->` operator. However if I 
> use the `%` operator, the index is found and used. Can you explain why 
> this is happening? As far as I can tell from the documentation, the 
> `<->` operator should be using the index as well.

Yes <-> operator should use a GiST index. Can you show your query and 
its plan?

-- 
Arthur Zakirov
Postgres Professional: http://www.postgrespro.com
Russian Postgres Company


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