In MySQL, while searching column using MATCH AGAINST keywords then the result matches all the row with search character more than 3.
If you see the system variable ft_min_word_len, which specifies the minimum length of words to be indexed by full-text searching, it defaults to 4, so 3-letter words won’t be found by full-text searching.
Run show variables like ‘ft_%’; to confirm that the word length matches what you set it to.
ft_min_word_len = 4
You can change the effect by updating the ft_min_word_len variable in the my.cnf MySQL configuration file:
ft_min_word_len = 3
Then you must restart the server and rebuild your FULLTEXT indexes.
For avoiding this issue, in this case, you can still use LIKE:
‘%$keyword%’ LIKE CONCAT(‘%’, Column, ‘%’)
Or regular expression:
‘%$keyword%’ REGEXP Column
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