如何将单词排序到每条记录中(用户函数)？

CREATE FUNCTION sort_words(record TEXT) RETURNS TEXT
BEGIN
    -- 将记录中的单词拆分成一个个单词
    DECLARE words TEXT[];
    SET words = string_to_array(record, ' ');

    -- 对单词进行排序
    SET words = array_sort(words);

    -- 将排序后的单词重新组合成记录
    SET record = array_to_string(words, ' ');

    RETURN record;
END;

record1: "apple banana cherry"
record2: "orange grapefruit apple"

record1: "apple banana cherry"
record2: "apple grapefruit orange"