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30990006a9
This reduces chances of errors where consumers of strings mutate inputs and reduces memory usage of the app. Test suite passes now, but there may be some stuff left, so we will run a few sites on a branch prior to merging
15 lines
423 B
Ruby
15 lines
423 B
Ruby
# frozen_string_literal: true
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class AddPercentRankToPosts < ActiveRecord::Migration[4.2]
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def change
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add_column :posts, :percent_rank, :float, default: 1.0
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execute "UPDATE posts SET percent_rank = x.percent_rank
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FROM (SELECT id, percent_rank()
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OVER (PARTITION BY topic_id ORDER BY SCORE DESC)
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FROM posts) AS x
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WHERE x.id = posts.id"
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end
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end
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