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MDEV-15649 Speedup search in acl_users and acl_dbs array,

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sorting them by usernames first, and then by get_sort() value.


Search functions now use binary search to find the the first entry with
given name. Then, linear search is done, until the first match.
This commit is contained in:
Vladislav Vaintroub
2018-11-26 21:24:05 +01:00
parent bb9b4182e4
commit f77895ebf3
5 changed files with 239 additions and 112 deletions
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4
mysql-test/suite/perfschema/r/hostcache_ipv4_nameinfo_again_allow.result
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@@ -118,7 +118,7 @@ Con4 is alive
Con4 is alive
select current_user();
current_user()
root@192.0.2.4
root@santa.claus.ipv4.example.com
disconnect con4;
connection default;
"Dumping performance_schema.host_cache"
@@ -155,7 +155,7 @@ Con5 is alive
Con5 is alive
select current_user();
current_user()
root@192.0.2.4
root@santa.claus.ipv4.example.com
disconnect con5;
connection default;
"Dumping performance_schema.host_cache"