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privilege/privileges: sort user records in privilege cache #7211

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merged 8 commits into from
Aug 2, 2018
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privilege/privileges: sort user records in privilege cache #7211

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privilege/privileges: sort user records in privilege cache
tiancaiamao Jul 31, 2018
4883b7b
use `%` instead of "%" to get better visualization in github
tiancaiamao Jul 31, 2018
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address comment
tiancaiamao Aug 1, 2018
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tiancaiamao Aug 1, 2018
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tiancaiamao Aug 1, 2018
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tiancaiamao Aug 2, 2018
c2991c1
Merge branch 'master' into sort-privilege
tiancaiamao Aug 2, 2018
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Merge branch 'master' into sort-privilege
tiancaiamao Aug 2, 2018
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1 change: 1 addition & 0 deletions privilege/privileges/cache.go
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Expand Up @@ -194,6 +194,7 @@ func (s sortedUserRecord) Less(i, j int) bool {
}

// compareHost compares two host string using some special rules, return value 1, 0, -1 means > = <.
// TODO: Check how MySQL do it exactly, instead of guess its rules.
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create an issue for this TODO, and add the link here

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It seems https://github.com/mysql/mysql-server/blob/e877ec8e4df014442a10d161c91e3975b39b63d5/sql/auth/sql_auth_cache.cc#L466

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wild_one='_'

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It may be overkill, if some user really meet the complex cases and complain, I'll consider.
If you are interested, you can self-assign this one #7229

func compareHost(x, y string) int {
// The more-specific, the smaller it is.
// The pattern '%' means “any host” and is least specific.
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