问题
It seems that when updating a mysql fulltext index, the query performance degrades over time -- perhaps about two months of updates, there a noticeable query degradation on a query such as:
WHERE match(search) against ('Season1')
Is this a common experience? I've never heard of this before. Is it possible to 'rebuild' the fts index or something if it seems like the performance is degrading?
However, after running OPTIMIZE TABLE every month or so, it seems to fix the problem. What's going on here?
来源：https://stackoverflow.com/questions/59796140/mysql-fts-index-degrading-performance-until-optimize-table