Like does not work with Russian symbols? (ICU support) · stephencelis/SQLite.swift#1025

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help wantedquestion

説明

Hello. I use like with lowercaseString and Russian symbols but LOWER doesn't convert them to lowercase in the query. I tried to create my own function but it didn't work for me. How to solve this problem? Thanks.

// in name value: ПРИВЕТ from database let search_name = "Привет" user.filter(name.lowercaseString.like("%" + search_name.lowercased() + "%"))

コントリビューターガイド

技術スタック: swiftsql
領域: database
Issue 種別: bug
難度: 3
推定時間: 1-3 hours
活動状況: stale
明確さ: mostly clear
前提条件: Swift basicsSQLite queriesUnicode case insensitive comparison
初心者向け度: 50
調査方針: Investigate SQLite's ICU support: by default, LOWER() only handles ASCII. The user needs a case insensitive LIKE for Cyrillic. Options include using SQLite's ICU extension (requires loading the ICU extension) or registering a custom collation. In SQLite.swift, custom functions can be added via Connection.createFunction. The user attempted this but failed. Check the GitHub issue comments for details. Also review SQLite.swift documentation on custom functions and collations. Potential fix: provide an example or modify the implementation to support Unicode case insensitive matching.