Re: BUG #14278: Problem searching spanish words with accent mark outside the stem

On 7 August 2016 at 23:58, Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> wrote:
> paco(at)hernandezgomez(dot)com wrote:
>
>> Search without accent mark is not working correctly when the accent mark is
>> outside the stem of the word.
>
> I think it'd be better to apply unaccent() to both the stored text
> before ts_vectorization and to the query terms. That would reliably
> remove all diacritics (eñes too, though I suppose nobody would search
> for their ñandúes by writing nandú, so it's not as severe).
>
>

problem is that unaccent() is stable so can't be in the index
expression, so OP would need to create a ts_vector field to store a
preprocessed version of the string (one in which ts_vector('spanish',
unaccent()) has been already executed. and query over that field.

<cough> or create an immutable version of unaccent() </cough>

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Jaime Casanova www.2ndQuadrant.com
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