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Optimize query for pulling popular videos

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This commit is contained in:
Omar Roth
2019-06-06 21:33:30 -05:00
parent fda619f704
commit 317d8703ca
1 changed files with 4 additions and 7 deletions
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11
src/invidious/helpers/jobs.cr
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@@ -200,13 +200,10 @@ end
def pull_popular_videos(db)
loop do
subscriptions = db.query_all("SELECT channel FROM \
(SELECT UNNEST(subscriptions) AS channel FROM users) AS d \
GROUP BY channel ORDER BY COUNT(channel) DESC LIMIT 40", as: String)
videos = db.query_all("SELECT DISTINCT ON (ucid) * FROM \
channel_videos WHERE ucid IN (#{arg_array(subscriptions)}) \
ORDER BY ucid, published DESC", subscriptions, as: ChannelVideo).sort_by { |video| video.published }.reverse
videos = db.query_all("SELECT DISTINCT ON (ucid) * FROM channel_videos WHERE ucid IN \
(SELECT channel FROM (SELECT UNNEST(subscriptions) AS channel FROM users) AS d \
GROUP BY channel ORDER BY COUNT(channel) DESC LIMIT 40) \
ORDER BY ucid, published DESC", as: ChannelVideo).sort_by { |video| video.published }.reverse
yield videos
sleep 1.minute