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From: Laurenz Albe <[email protected]>
To: [email protected]
Subject: Re: Wrong results with equality search using trigram index and non-deterministic collation
Date: Thu, 19 Sep 2024 14:53:52 +0200
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

On Tue, 2024-09-17 at 08:00 +0200, Laurenz Albe wrote:
> Using a trigram index with an non-deterministic collation can
> lead to wrong query results:
> [...]
> 
> I don't know what the correct fix would be.  Perhaps just refusing to use
> the index for equality comparisons with non-deterministic collations.

Looking into fixing that, how can you tell the optimizer to consider
a certain index only for certain collations?

Yours,
Laurenz Albe

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