MySQL 8.0 - implementing Full-Text Search Returning Inconsistent Results with Natural Language Mode
I've encountered a strange issue with I'm relatively new to this, so bear with me. I'm currently dealing with a MySQL 8.0 database where I'm trying to implement a full-text search on a large text column of a table named `articles`. The scenario I'm working with is that when I run queries using the natural language mode, I sometimes get inconsistent results. For example, when searching for the term 'data science', I expect to see articles containing both 'data' and 'science' but the results often seem to omit relevant entries. I've set up the full-text index as follows: ```sql ALTER TABLE articles ADD FULLTEXT(title, body); ``` And I am querying the data using: ```sql SELECT * FROM articles WHERE MATCH(title, body) AGAINST('data science' IN NATURAL LANGUAGE MODE); ``` Initially, I thought it might be an scenario with the stopword list, but according to the documentation, the default stopwords are 'a', 'an', 'the', etc., which shouldn't affect my search terms. I've tried changing the search mode to boolean mode as well: ```sql SELECT * FROM articles WHERE MATCH(title, body) AGAINST('+data +science' IN BOOLEAN MODE); ``` This does seem to improve the results, but it is not as flexible as natural language mode, and I would like to retain that functionality. Moreover, I've also checked the minimum word length setting and confirmed that both 'data' and 'science' meet the criteria, as my `ft_min_word_len` is set to 3. To further debug this, I examined the execution plan for my query using `EXPLAIN` and noticed it shows that the full-text index is being used, but the results still seem incomplete. I'm not sure if there's something I'm missing in my configuration or if I need to adjust my queries. Has anyone experienced similar issues and found a solution to get consistent results with full-text search in MySQL 8.0? Any ideas what could be causing this?