Re: Wrong results with equality search using trigram index and non-deterministic collation

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