evazion 5dc67613e6 search: optimize username metatags. ...

Optimize metatag searches involving usernames, including user:,
approver:, appealer:, commenter:, upvoter:, etc.

Do `User.find_by_name` instead of `User.name_matches` because this
fetches the user upfront instead of doing it inside a subquery. Using a
subquery makes the SQL more complicated and leads to worse query plans.
This especially helps searches involving multiple username metatags.

2021-11-25 00:40:53 -06:00

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