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Optimize query for pulling popular videos
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@ -200,13 +200,10 @@ end
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def pull_popular_videos(db)
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def pull_popular_videos(db)
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loop do
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loop do
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subscriptions = db.query_all("SELECT channel FROM \
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videos = db.query_all("SELECT DISTINCT ON (ucid) * FROM channel_videos WHERE ucid IN \
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(SELECT UNNEST(subscriptions) AS channel FROM users) AS d \
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(SELECT channel FROM (SELECT UNNEST(subscriptions) AS channel FROM users) AS d \
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GROUP BY channel ORDER BY COUNT(channel) DESC LIMIT 40", as: String)
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GROUP BY channel ORDER BY COUNT(channel) DESC LIMIT 40) \
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ORDER BY ucid, published DESC", as: ChannelVideo).sort_by { |video| video.published }.reverse
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videos = db.query_all("SELECT DISTINCT ON (ucid) * FROM \
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channel_videos WHERE ucid IN (#{arg_array(subscriptions)}) \
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ORDER BY ucid, published DESC", subscriptions, as: ChannelVideo).sort_by { |video| video.published }.reverse
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yield videos
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yield videos
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sleep 1.minute
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sleep 1.minute
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