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PERF: Use different column for better query plan (#14748) 

Using topics.id provides a better query plan than posts.topic_id which
speeds up search by almost 50%.
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Dan Ungureanu 2021-10-28 11:30:30 +03:00 committed by GitHub
parent a2851b5d4c
commit ba3078e098
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1 changed files with 2 additions and 2 deletions
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4
app/models/post.rb
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@ -86,8 +86,8 @@ class Post < ActiveRecord::Base
scope :private_posts_for_user, ->(user) do
where(
"posts.topic_id IN (#{Topic::PRIVATE_MESSAGES_SQL_USER})
OR posts.topic_id IN (#{Topic::PRIVATE_MESSAGES_SQL_GROUP})",
"topics.id IN (#{Topic::PRIVATE_MESSAGES_SQL_USER})
OR topics.id IN (#{Topic::PRIVATE_MESSAGES_SQL_GROUP})",
user_id: user.id
)
end