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Improve home feed query

This commit is contained in:
rubic0n 2021-02-28 19:45:44 -06:00
parent 10ec03f28b
commit 6e42e3b1ec
1 changed files with 9 additions and 13 deletions
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22
app/models/home_feed.rb
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@ -16,11 +16,7 @@ class HomeFeed < Feed
private private
def from_database(limit, max_id, since_id, min_id) def from_database(limit, max_id, since_id, min_id)
pagination_max = "" Status.find_by_sql([<<-SQL, { id: @id, limit: limit, min_id: min_id, max_id: max_id }])
pagination_min = ""
pagination_max = "and s.id < #{max_id}" unless max_id.nil?
pagination_min = "and s.id > #{min_id}" unless min_id.nil?
Status.find_by_sql "
with cte as with cte as
( (
select select
@ -36,14 +32,14 @@ class HomeFeed < Feed
where where
s.created_at > NOW() - INTERVAL '7 days' s.created_at > NOW() - INTERVAL '7 days'
and s.reply is false and s.reply is false
and (exists(select ff.target_account_id from follows ff where ff.account_id = #{@id} and ff.target_account_id = s.account_id) and (exists(select ff.target_account_id from follows ff where ff.account_id = :id and ff.target_account_id = s.account_id)
or s.account_id = #{@id}) or s.account_id = :id)
and not exists(select mm.target_account_id from mutes mm where mm.account_id = #{@id} and mm.target_account_id in (s.account_id, r.account_id)) and not exists(select mm.target_account_id from mutes mm where mm.account_id = :id and mm.target_account_id in (s.account_id, r.account_id))
and not exists(select bb.target_account_id from blocks bb where bb.account_id = #{@id} and bb.target_account_id in (s.account_id, r.account_id)) and not exists(select bb.target_account_id from blocks bb where bb.account_id = :id and bb.target_account_id in (s.account_id, r.account_id))
#{pagination_max} and (:max_id is null or s.id < :max_id)
#{pagination_min} and (:min_id is null or s.id > :min_id)
order by s.created_at desc order by s.created_at desc
limit #{limit} limit :limit
) sid ) sid
) )
select select
@ -53,6 +49,6 @@ class HomeFeed < Feed
where where
cte.rn_dupe = 1 or cte.reblog_of_id is null cte.rn_dupe = 1 or cte.reblog_of_id is null
order by so.created_at desc order by so.created_at desc
" SQL
end end
end end