Re: Text,Citext column and Btree index

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От Vik Fearing
Тема Re: Text,Citext column and Btree index
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Msg-id b9b91ab6-5130-2e31-198c-1836654b3361@2ndquadrant.fr
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Ответ на Text,Citext column and Btree index  (Viswanath <M.Viswanath16@gmail.com>)
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On 09/01/2016 09:34 AM, Viswanath wrote:
> Hi,
> Why is a citext column not using Btree index for like operation even without
> any wildcard character?

Because it doesn't know how.

> It can use Btree index if there is no wildcard character and if it is at the end right?

No; use pg_trgm for this.

> Also a text column is using index when there is no wildcard character,but it
> is also not using if it is present at the end.

Did you declare your index with text_pattern_ops?
--
Vik Fearing                                          +33 6 46 75 15 36
http://2ndQuadrant.fr     PostgreSQL : Expertise, Formation et Support


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