DROP_RECREATE doesn't works because name is random,so it will create a new unique index everytime and never drop the exists one,the point is use a fixed index name rather than a random name,4.2.1 break compatibility with previous version,please NOTE in release notes,thanks!
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DROP_RECREATE doesn't works because name is random,so it will create a new unique index everytime and never drop the exists one,the point is use a fixed index name rather than a random name,4.2.1 break compatibility with previous version,please NOTE in release notes,thanks!