CODEWITHSUNDEEP
phpsymfonysortingelasticsearch
Viet Dinh
Viet Dinh

Reputation: 1961

Elastich search - ICU Collation Keyword Field - Norwegian language - aa elastich search consider as å when sorting

I am using elastic search elasticsearch:6.8.4 on fos in Symfony 4.4 by friendsofsymfony/elastica-bundle": "^5.0"

I am facing an issue with sort field with config in fos_elastica.yaml. My config like:

 user_first_name_sort: {type: icu_collation_keyword, language: nb, index: true}

This work fine for Norwegian language as expected. But, word aa elastich search consider as å when sorting. Example: enter image description here

How can i ignore implictly transfer?

Upvotes: 1

Views: 514

Answers (1)

nikoshr
nikoshr

Reputation: 33344

According to Wikipedia on the Norwegian alphabet

The letter Å (HTML å) was introduced in Norwegian in 1917, replacing Aa or aa.
[...]
Family names may not follow modern orthography, and as such retain the digraph aa where å would be used today.

and more specifically on the subject of collation

Aa is treated like Å in alphabetical sorting, not like two adjacent letters A, meaning that while a is the first letter of the alphabet, aa is the last.

Your sort order is correct.

Upvotes: 3

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