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Optimize last message search in member list view

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This commit is contained in:
Ske 2020-06-13 02:45:06 +02:00
parent d246c9bf33
commit 292676b694
1 changed files with 2 additions and 1 deletions
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3
PluralKit.Core/Database/views.sql
View File

@ -9,7 +9,8 @@ from systems
create view member_list as create view member_list as
select members.*, select members.*,
-- Find last message ID -- Find last message ID
(select max(messages.mid) from messages where messages.member = members.id) as last_message, -- max(mid) does full table scan, order by/limit uses index (dunno why, but it works!)
(select mid from messages where messages.member = members.id order by mid desc nulls last limit 1) as last_message,
-- Find last switch timestamp -- Find last switch timestamp
( (