MySQL 8.0: Unexpected Results with FULLTEXT Search on Multi-Word Indexed Columns
I've been banging my head against this for hours... I've been banging my head against this for hours. I'm experiencing inconsistent results when using FULLTEXT search on a multi-word indexed column in MySQL 8.0. I have a table `articles` with a column `content` that contains articles in plain text. The FULLTEXT index is created on this column. Here’s how I set it up: ```sql CREATE TABLE articles ( id INT AUTO_INCREMENT PRIMARY KEY, content TEXT, FULLTEXT(content) ); ``` I've inserted several articles, but when I run a FULLTEXT search query like this: ```sql SELECT * FROM articles WHERE MATCH(content) AGAINST('database performance' IN NATURAL LANGUAGE MODE); ``` I'm getting back results that contain only 'database' or only 'performance', but not necessarily both. I expected to see results containing both terms. Additionally, I've tried using the boolean mode with: ```sql SELECT * FROM articles WHERE MATCH(content) AGAINST('+database +performance' IN BOOLEAN MODE); ``` which returns no results at all despite there being articles containing both words. I also checked the `ft_min_word_len` variable, which is set to 4, and both 'database' and 'performance' meet that requirement. I’ve ensured that there are no leading or trailing spaces in the `content` column. I want to confirm if there’s something specific I’m missing about how FULLTEXT searches work in MySQL, or if there’s a limitation I should be aware of when dealing with multi-word searches. Any insights or advice on how to troubleshoot this would be greatly appreciated! I'm working on a CLI tool that needs to handle this. I'm working on a web app that needs to handle this. This is happening in both development and production on Windows 10. Could someone point me to the right documentation?